Xeon

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Xeon
Produced From 1998 to present
Common manufacturer(s) Intel
Max. CPU clock 400 MHz to 3.8 GHz
FSB speeds 100 MHz to 1.6 GHz
Instruction set x86, x86-64
Microarchitecture Nehalem, Core, NetBurst, P6
Cores 1, 2, 4, or 6

The Xeon brand refers to many families of Intel's x86 multiprocessing CPUs – for dual processor and multi-processor (MP) configuration on a single motherboard targeted at non-consumer markets of server and workstation computers, and also at blade servers and embedded systems. The Xeon brand has been maintained over several generations of x86 and x86-64 processors. Older models added the Xeon moniker to the end of the name of their corresponding desktop processor, but more recent models used the name Xeon on its own. The Xeon CPUs generally have more cache than their desktop counterparts in addition to multiprocessing capabilities. Intel's (non-x86) IA-64 processors are called Itanium, not Xeon.

Contents

[edit] Pentium II Xeon

Pentium II 450 Xeon with 512 KB cache. Cartridge cover has been removed.

The first Xeon branded processor was released in 1998, named the Pentium II Xeon (codenamed "Drake"), as the replacement of the Pentium Pro. It was based on the 0.25 µm "Deschutes" core (P6 microarchitecture) branded Pentium II (sharing its 80523 product code), used either a 440GX (a dual-processor workstation chipset) or 450NX (quad-processor, or oct with additional logic) chipset, and differed from the Pentium II desktop CPU (Deschutes) in that its off-die L2 cache ran at full speed. It also used a larger slot known as slot 2, although a small number were produced in Socket 8 for upgrades to existing Pentium Pro systems. Cache sizes were 512 KB, 1 MB, and 2 MB, and it used a 100 MT/s front side bus (FSB)[1].

[edit] Pentium III Xeon

Pentium III Xeon logo

In 1999, the Pentium II Xeon was replaced by the Pentium III Xeon. Reflecting the incremental changes from the Pentium II "Deschutes" core to the Pentium III "Katmai" core, the first Pentium III Xeon, named "Tanner", was just like its predecessor except for the addition of Streaming SIMD Extensions (SSE) and a few cache controller improvements. The second version, named "Cascades", was based on the Pentium III "Coppermine" core. The "Cascades" Xeon used a 133 MT/s bus and relatively small 256 KB on-die L2 cache resulting in almost the same capabilities as the Slot 1 Coppermine processors, which were capable of dual-processor operation but not quad-processor operation. To improve this situation, Intel released another version, officially also named "Cascades", but often referred to as "Cascades 2 MB". That came in two variants: with 1 MB or 2 MB of L2 cache. Its bus speed was fixed at 100 MT/s, though in practice the cache was able to offset this. Product codes for Tanner and Cascades mirrored that of Katmai and Coppermine; 80525 and 80526 respectively.

[edit] Xeon (DP) & Xeon MP (32-bit)

[edit] Foster

In mid-2001, the Xeon brand was introduced ("Pentium" was dropped from the name). The initial variant that used the new NetBurst architecture, "Foster", was slightly different from the desktop Pentium 4 ("Willamette"). It was a decent chip for workstations, but for server applications it was almost always outperformed by the older Cascades 2 MB core and AMD's Athlon MP. Combined with the need to use expensive Rambus Dynamic RAM, the Foster's sales were somewhat unimpressive.

At most two Foster processors could be accommodated in a symmetric multiprocessing (SMP) system built with a mainstream chipset, so a second version (Foster MP) was introduced with a 1 MB L3 cache and the Jackson Hyper-Threading capacity. This improved performance slightly, but not enough to lift it out of third place. It was also priced much higher than the dual-processor (DP) versions. The Foster shared the 80528 product code with Willamette.

Model Speed (GHz) L2 Cache (KB) FSB (MT/s) TDP (W)
1.4 256 400 56
1.5 256 400 59.2
1.7 256 400 65.8
2.0 256 400 77.5

[edit] Prestonia

In 2002 Intel released a 130 nm version of Xeon branded CPU, codenamed "Prestonia". It supported Intel's new Hyper-Threading technology and had a 512 KB L2 cache. This was based on the "Northwood" Pentium 4 core. A new server chipset, E7500 (which allowed the use of dual-channel DDR SDRAM), was released to support this processor in servers, and soon the bus speed was boosted to 533 MT/s (accompanied by new chipsets: the E7501 for servers and the E7505 for workstations). The Prestonia performed much better than its predecessor and noticeably better than Athlon MP. The support of new features in the E75xx series also gave it a key advantage over the Pentium III Xeon and Athlon MP branded CPUs (both stuck with rather old chipsets), and it quickly became the top-selling server/workstation processor.

[edit] Gallatin

Subsequent to the Prestonia was the "Gallatin", which had an L3 cache of 1 MB or 2 MB. Its Xeon MP version also performed much better than the Foster MP, and was popular in servers. Later experience with the 130 nm process allowed Intel to create the Xeon MP branded Gallatin with 4 MB cache. The Xeon branded Prestonia and Gallatin were designated 80532, like Northwood.

[edit] Xeon (DP) & Xeon MP (64-bit)

Due to a lack of success with Intel's Itanium and Itanium 2 processors, AMD was able to introduce x86-64, a 64-bit extension to the x86 architecture. Intel followed suit by including Intel 64 (formerly EM64T; it is almost identical to AMD64) in the 90 nm version of the Pentium 4 ("Prescott"), and a Xeon version codenamed "Nocona" was released in 2004. Released with it were the E7525 (workstation), E7520 and E7320 (both server) chipsets, which added support for PCI Express, DDR-II and Serial ATA. The Xeon was noticeably slower than AMD's Opteron, although it could be faster in situations where Hyper-Threading came into play.

A slightly updated core called "Irwindale" was released in early 2005, with twice the L2 cache of Nocona and able to reduce its clock speed during low processor demand. However, independent tests showed that AMD's Opteron still outperformed Irwindale.

64-bit Xeon MPs were introduced in April 2005. The cheaper "Cranford" was an MP version of Nocona, while the more expensive "Potomac" was a Cranford with 8 MB of L3 cache. All these Prescott-derived Xeons have the product code 80546.

[edit] Dual-Core Xeon

Xeon processor family
Original Xeon logo New Xeon logo
Original logo 2008 New logo

[edit] "Paxville DP"

The first dual-core CPU branded Xeon, codenamed Paxville DP, product code 80551, was released by Intel on 10 October 2005. Paxville DP had NetBurst architecture, and was a dual-core equivalent of the single-core Irwindale (related to the Pentium D branded "Smithfield"") with 4 MB of L2 Cache (2 MB per core). The only one Paxville DP model released ran at 2.8 GHz, featured an 800 MT/s front side bus, and was produced using a 90 nm process.

[edit] 7000-series "Paxville MP"

An MP-capable version of Paxville DP, codenamed Paxville MP, product code 80560, was released on 1 November 2005. There are two versions: one with 2 MB of L2 Cache (1 MB per core), and one with 4 MB of L2 (2 MB per core). Paxville MP, called the dual-core Xeon 7000-series, was produced using a 90 nm process. Paxville MP clock ranges between 2.67 GHz and 3.0 GHz (model numbers 7020-7041), with some models having a 667 MT/s FSB, and others having an 800 MT/s FSB.

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
7020 2.66 2x1 667 165
7030 2.80 2x1 800 165
7040 3.00 2x2 667 165
7041 3.00 2x2 800 165

[edit] LV (ULV), "Sossaman"

On 14 March 2006, Intel released a dual-core processor codenamed Sossaman and branded as Xeon LV (low-voltage). Subsequently an ULV (ultra-low-voltage) version was released. The Sossaman was a low-/ultra-low-power and double-processor capable CPU (like AMD Quad FX), based on the "Yonah" processor, for ultradense non-consumer environment (i.e. targeted at the blade-server and embedded markets), and it was rated at a thermal design power (TDP) of 31 W (LV: 1.66 GHz and 2 GHz ) and 15 W (ULV: 1.66 GHz)[2]. As such, it supported most of the same features as earlier Xeons: Virtualization Technology, 667 MT/s front side bus, and dual-core processing, but it did not support 64-bit operations, so it could not run 64-bit-only server software, such as Microsoft Exchange Server 2007, and therefore it was limited to only 16 GB of memory. A planned successor, codenamed "Merom MP" was to be a drop-in upgrade to allow Sossaman-based servers to upgrade to 64-bit capability. However, this was abandoned in favour of low-voltage versions of the Woodcrest LV processor leaving the Sossaman at a dead-end with no planned upgrades.

[edit] 5000-series "Dempsey"

On 23 May 2006, Intel released the dual-core CPU (Xeon branded 5000 series) codenamed Dempsey (product code 80555). Released as the Dual-Core Xeon 5000-series, Dempsey is a NetBurst architecture processor produced using a 65 nm process, and is virtually identical to Intel's "Presler" Pentium Extreme Edition, except for the addition of SMP support, which lets Dempsey operate in dual-processor systems. Dempsey ranges between 2.50 GHz and 3.73 GHz (model numbers 5020-5080). Some models have a 667 MT/s FSB, and others have a 1066 MT/s FSB. Dempsey has 4 MB of L2 Cache (2 MB per core). A Medium Voltage model, at 3.2 GHz and 1066 MT/s FSB (model number 5063), has also been released. Dempsey also introduces a new interface for Xeon processors: Socket J, also known as LGA 771.

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
5020 2.50 2x2 667 95
5030 2.66 2x2 667 95
5040 2.83 2x2 667 95
5050 3.00 2x2 667 95
5060 3.20 2x2 1066 130
5063 3.20 2x2 1066 95
5070 3.46 2x2 1066 130
5080 3.73 2x2 1066 130

[edit] 5100-series "Woodcrest"

On 26 June 2006, Intel released the dual-core CPU (Xeon branded 5100 series) codenamed Woodcrest (product code 80556); it was the first Intel Core microarchitecture processor to be launched on the market. It is a server and workstation version of the Intel Core 2 processor. Intel claims that it provides an 80% boost in performance, while reducing power consumption by 20% relative to the Pentium D.

Most models have a 1333 MT/s FSB, except for the 5110 and 5120, which have a 1066 MT/s FSB. The fastest processor (5160) operates at 3.0 GHz. All Woodcrests use LGA 771 and all except two models have a TDP of 65 W. The 5160 has a TDP of 80 W and the 5148LV (2.33 GHz) has a TDP of 40 W. The previous generation Xeons had a TDP of 130 W. All models support Intel 64 (Intel's x86-64 implementation), the XD bit, and Virtualization Technology, with the "Demand Based Switching" power management option only on Dual-Core Xeon 5140 or above. Woodcrest has 4 MB of shared L2 Cache.

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
5110 1.60 4 1066 65
5120 1.83 4 1066 65
5128 1.83 4 1066 40
5130 2.0 4 1333 65
5138 2.13 4 1066 35
5140 2.33 4 1333 65
5148 2.33 4 1333 40
5150 2.66 4 1333 65
5160 3 4 1333 80

[edit] 7100-series "Tulsa"

Released on 29 August 2006,[3] the 7100 series, codenamed Tulsa (product code 80550), is an improved version of Paxville MP, built on a 65 nm process, with 2 MB of L2 cache (1 MB per core) and up to 16 MB of L3 cache. It uses Socket 604 [1]. Tulsa was released in two lines: the N-line uses a 667 MT/s FSB, and the M-line uses an 800 MT/s FSB. The N-line ranges from 2.5 GHz to 3.5 GHz (model numbers 7110N-7150N), and the M-line ranges from 2.6 GHz to 3.4 GHz (model numbers 7110M-7140M). L3 cache ranges from 4 MB to 16 MB across the models.[4]

Model Speed (GHz) L2 Cache (MB) L3 Cache (MB) FSB (MHz) TDP (W)
7110N 2.50 2 4 667 95
7110M 2.60 2 4 800 95
7120N 3.00 2 4 667 95
7120M 3.00 2 4 800 95
7130N 3.16 2 8 667 150
7130M 3.20 2 8 800 150
7140N 3.33 2 16 667 150
7140M 3.40 2 16 800 150

[edit] 7200-series "Tigerton"

The 7200 series, codenamed Tigerton (product code 80564) is an MP-capable processor, similar to the 7300 series, but, in contrast, only one core is active on each silicon chip, and the other one is turned off (blocked), resulting as a dual-core capable processor. [2] [3][4] [5]

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
E7210 2.40 2x4 1066 80
E7220 2.93 2x4 1066 81

[edit] 3000-series "Conroe"

The 3000 series, codenamed Conroe (product code 80557) dual-core Xeon (branded) CPU,[5] released at the end of September 2006, was just a rebranded version of the Intel's mainstream Conroe, otherwise branded as Core 2 Duo (for consumer desktops). Unlike most Xeon processors, they only supported single-CPU operation. They use Socket T (LGA775), operate on a 1066 MHz front-side bus, support Enhanced Intel Speedstep Technology and Intel Virtualization Technology but do not support Hyper-Threading. Intel Processors with a number ending in "5" have a 1333 MT/s FSB.[6]

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
3040 1.86 2 1066 65
3050 2.13 2 1066 65
3055* 2.13 4 1066 65
3060 2.4 4 1066 65
3065 2.33 4 1333 65
3070 2.66 4 1066 65
3075 2.66 4 1333 65
3080* 2.93 4 1066 65
3085 3.00 4 1333 65
  • Models marked with a star are not present in intel's database [7]

[edit] 3100-series "Wolfdale"

The 3100 series, codenamed Wolfdale (product code 80570) dual-core Xeon (branded) CPU, was just rebranded version of the Intel's mainstream Wolfdale featuring the same 45 nm process and 6 MB of L2 cache. Unlike most Xeon processors, they only support single-CPU operation. They use Socket T (LGA775), operate on a 1333 MHz front-side bus, support Enhanced Intel Speedstep Technology and Intel Virtualization Technology but do not support Hyper-Threading.

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
E3110 3.00 6 1333 65
L3110 3.00 6 1333 45
E3120 3.16 6 1333 65

[edit] 5200-series "Wolfdale DP"

On 11 November 2007, Intel released the dual-core CPU (Xeon branded 5200 series) codenamed Wolfdale DP (product code 80573)[8]. It is built on a 45 nm process like the desktop Core 2 Duo Wolfdale and the Xeon-SP Wolfdale, featuring Intel 64 (Intel's x86-64 implementation), the XD bit, and Virtualization Technology. It is unclear whether the "Demand Based Switching" power management is available on the L5238.[9] Wolfdale has 6 MB of shared L2 Cache.

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
E5205 1.86 6 1066 65
L5238 2.66 6 1333 35
X5260 3.33 6 1333 80
X5270 3.50 6 1333 80
X5272 3.40 6 1600 80

[edit] Quad-Core and Multi-Core Xeon

[edit] 3200-series "Kentsfield"

Intel released relabeled versions of its quad-core (2x2) Core 2 Quad processor as the Xeon 3200-series (product code 80562) on 7 January 2007.[10] The 2x2 "quad-core" (dual-die dual-core[11]) comprised two separate dual-core die next to each other in one CPU package. The models are the X3210, X3220 and X3230, running at 2.13 GHz, 2.4 GHz and 2.66 GHz, respectively.[12] Like the 3000-series, these models only support single-CPU operation and operate on a 1066 MHz front-side bus. It is targeted at the "blade" market. The X3220 is also branded and sold as Core2 Quad Q6600, the X3230 as Q6700.

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
X3210 2.13 2x4 1066 100/105
X3220 2.40 2x4 1066 100/105
X3230 2.66 2x4 1066 100

[edit] 3300-series "Yorkfield"

Intel released relabeled versions of its quad-core (2x2) Core 2 Quad Yorkfield Q9400 and Q9x50 processors as the Xeon 3300-series (product code 80569). It comprised two separate dual-core dies next to each other in one CPU package and manufactured in a 45 nm process. The models are the X3320, X3350, X3360 and X3370, running at 2.50 GHz, 2.66 GHz, 2.83 GHz and 3.0 GHz, respectively. The L2 cache is a unified 6 MB per die (except for the X3320 with a smaller 3 MB L2 cache per die), and a front-side bus of 1333 MHz. All models feature Intel 64 (Intel's x86-64 implementation), the XD bit, and Virtualization Technology, as well as "Demand Based Switching".

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W) Socket Platform
X3320 2.50 2x3 1333 95 LGA socket 775
X3330 2.66 2x3 1333 95 LGA socket 775
X3350 2.66 2x6 1333 95 LGA socket 775
X3360 2.83 2x6 1333 95 LGA socket 775
X3370 3.00 2x6 1333 95 LGA socket 775

[edit] 3500-series "Bloomfield"

Bloomfield is the codename for the successor to the Xeon Intel Core microarchitecture, is based on the Nehalem architecture and uses the same 45 nm manufacturing methods as Intel's Penryn. The first processor released with the Nehalem architecture is the desktop Intel Core i7, which was released in November 2008. This is the server version for single CPU systems. The performance improvements over previous Xeon processors are based mainly on:

  • Integrated memory controller supporting two or three memory channels of DDR3 SDRAM or four FB-DIMM channels
  • A new point-to-point processor interconnect QuickPath, replacing the legacy front side bus
  • Simultaneous multithreading by multiple cores and hyperthreading (2x per core).
model Speed (GHz) L3 Cache (MB) QPI speed (GT/s) DDR3 Clock (MHz) TDP (W) Cores Threads Turbo-Boost
W3503 2.40 4 4.8 1066 130 2 4 Yes
W3505 2.53 4 4.8 1066 130 2 4 Yes
W3520 2.66 8 4.8 1066 130 4 8 Yes
W3540 2.93 8 4.8 1066 130 4 8 Yes
W3570 3.2 8 6.4 1333 130 4 8 Yes

[edit] 5300-series "Clovertown"

A quad-core (2x2) successor of the Woodcrest for DP segment, consisting of two dual-core Woodcrest chips in one package similarly to the dual-core Pentium D branded CPUs (two single-core chips) or the quad-core Kentsfield. The Clovertown has been usually implemented with two Woodcrest dies on a multi-chip module, with 8 MB of L2 cache (4 MB per die). Like Woodcrest, lower models use a 1066 MT/s FSB, and higher models use a 1333 MT/s FSB. Intel released Clovertown, product code 80563, on 14 November 2006[13] with models E5310, E5320, E5335, E5345, and X5355, ranging from 1.6 GHz to 2.66 GHz. The E and X designations are borrowed from Intel's Core 2 model numbering scheme; an ending of -0 implies a 1066 MT/s FSB, and an ending of -5 implies a 1333 MT/s FSB.[12] All models have a TDP of 80 W with the exception of the X5355, which has a TDP of 120 W. A low-voltage version of Clovertown with a TDP of 50 W has a model numbers L5310, L5320 and L5335 (1.6 GHz, 1.86 GHz and 2.0 GHz respectively). The 3.0 GHz X5365 arrived in July 2007, and became available in the Apple Mac Pro [6] on 4 April 2007.[7][14] The X5365 is among the fastest processors, performing up to around 38 GFLOPS in the LINPACK benchmark. [8]

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
E5310 1.60 2x4 1066 80
L5310 1.60 2x4 1066 50
E5320 1.83 2x4 1066 80
L5320 1.83 2x4 1066 50
E5335 2.00 2x4 1333 80
L5335 2.00 2x4 1333 50
E5345 2.33 2x4 1333 80
X5355 2.66 2x4 1333 120
X5365 3.00 2x4 1333 120

[edit] 5400-series "Harpertown"

On 11 November 2007 Intel presented Yorkfield based Xeons - called Harpertown (product code 80574) - to the public.[9] This family consists of dual die quad-core CPUs manufactured on a 45 nm process and featuring 1333 MHz to 1600 MHz front-side buses, with TDP rated from 50 W to 150 W depending on the model. These processors fit in the LGA771 socket. All models feature Intel 64 (Intel's x86-64 implementation), the XD bit, and Virtualization Technology, as well as the Demand Based Switching, except the E5405, which lacks this feature[15]. The supplementary character in front of the model-number represents the thermal rating: an L depicts an TDP of 50 W, an E depicts 80 W whereas a X is 120 W TDP or above. The speed of 3.00 GHz comes as four models, two models with 80 W TDP two other models with 120 W TDP with 1333 MHz or 1600 MHz front-side bus respectively. The fastest Harpertown is the X5492 whose TDP of 150 W is higher than those of the Prescott-based Xeon DP but having twice as many cores. (The X5482 is also sold under the name "Core 2 Extreme QX9775" for use in the Intel SkullTrail system.)

Intel 1600 MHz front-side bus Xeon processors will drop into the Seaburg chipset whereas several mainboards featuring the Intel 5000/5200-chipset are enabled to run the processors with 1333 MHz front-side bus processors. Seaburg features support for dual PCIe 2.0 x16 slots and up to 128 GB of memory.[16][17]

Model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
E5405 2.00 2x6 1333 80
E5410 2.33 2x6 1333 80
L5410 2.33 2x6 1333 50
E5420 2.50 2x6 1333 80
L5420 2.50 2x6 1333 50
E5430 2.66 2x6 1333 80
L5430 2.66 2x6 1333 50
E5440 2.83 2x6 1333 80
X5450 3.00 2x6 1333 120
E5450 3.00 2x6 1333 80
X5460 3.16 2x6 1333 120
X5470 3.33 2x6 1333 120
E5462 2.80 2x6 1600 80
X5472 3.00 2x6 1600 120
E5472 3.00 2x6 1600 80
X5482 3.20 2x6 1600 150
X5492 3.40 2x6 1600 150

[edit] 7300-series "Tigerton"

The 7300 series, codenamed Tigerton (product code 80565) is a four-socket (packaged in Socket 604) and greater capable quad-core processor, consisting of two dual core Core2 architecture silicon chips on a single ceramic module, similar to Intel's Xeon 5300 series Clovertown processor modules. It was announced on 5 September 2007 [10], and is currently shipping.

The 7300 series uses Intel's Caneland (Clarksboro) platform.

Intel claims the 7300 series Xeons offer more than twice the performance and more than three times the performance per watt as Intel's previous generation 7100 series. The 7300 series' Caneland chipset provides a point to point interface allowing the full front side bus bandwidth per processor.

The 7xxx series is aimed at the large server market, supporting configurations of up to 32 CPUs per host.

model Speed (GHz) L2 Cache (MB) FSB (MHz) TDP (W)
E7310 1.60 2x2 1066 80
E7320 2.13 2x2 1066 80
E7330 2.40 2x3 1066 80
E7340 2.40 2x4 1066 80
L7345 1.86 2x4 1066 50
X7350 2.93 2x4 1066 130

[edit] 7400-series "Dunnington"

Dunnington die micrograph.

Dunnington[18] - the last CPU of the Penryn generation and Intel's first multi-core (above two) die - features a single-die six- (or hexa-) core design with three unified 3 MB L2 caches (resembling three merged 45 nm dual-core Wolfdale dies), and 96 KB L1 cache (Data) and 16 MB of L3 cache. It features 1066 MHz FSB, fits into the Tigerton's mPGA604 socket, and is compatible with the both the Intel Caneland, and IBM X4 chipsets. These processors support DDR2-1066 (533 MHz), and have a maximum TDP below 130 W. They are intended for blades and other stacked computer systems. Availability is scheduled for the second half of 2008. It will be followed shortly by the Nehalem microarchitecture.

Announced on Sept. 15, 2008. Intel link

model Speed (GHz) L3 Cache (MB) FSB (MHz) TDP (W) Cores
E7420 2.13 8 1066 90 4
E7430 2.13 12 1066 90 4
E7440 2.40 16 1066 90 4
L7445 2.13 12 1066 50 4
E7450 2.40 12 1066 90 6
L7455 2.13 12 1066 65 6
X7460 2.66 16 1066 130 6

[edit] 5500-series "Gainestown"

Gainestown is the codename for the successor to the Xeon Intel Core microarchitecture, is based on the Nehalem architecture and uses the same 45 nm manufacturing methods as Intel's Penryn. The first processor released with the Nehalem architecture is the desktop Intel Core i7, which was released in November 2008. Server processors of the Xeon 55xx range were first supplied to testers in December 2008.[19]

The performance improvements over previous Xeon processors are based mainly on:

  • Integrated memory controller supporting two or three memory channels of DDR3 SDRAM or four FB-DIMM channels
  • A new point-to-point processor interconnect QuickPath, replacing the legacy front side bus
  • Hyperthreading (2x per core, starting from 5520), that was already present in pre-Core Duo processors.
model Speed (GHz) L3 Cache (MB) QPI speed (GT/s) DDR3 Clock (MHz) TDP (W) Cores Threads Turbo-Boost
E5502 1.86 4 4.8 800 80 2 2 No
E5504 2.00 4 4.8 800 80 4 4 No
E5506 2.13 4 4.8 800 80 4 4 No
L5506 2.13 4 4.8 800 60 4 4 No
E5520 2.26 8 5.86 1066 80 4 8 Yes
L5520 2.26 8 5.86 1066 60 4 8 Yes
E5530 2.40 8 5.86 1066 80 4 8 Yes
E5540 2.53 8 5.86 1066 80 4 8 Yes
X5550 2.66 8 6.4 1333 95 4 8 Yes
X5560 2.80 8 6.4 1333 95 4 8 Yes
X5570 2.93 8 6.4 1333 95 4 8 Yes
W5580 3.20 8 6.4 1333 130 4 8 Yes

[edit] Future versions

Main article: List of future Intel Xeon microprocessors
 This section contains information about scheduled or expected future computer chips.
It may contain preliminary or speculative information, and may not reflect the final specification of the product.

[edit] Beckton

Beckton is a Nehalem-based processor with eight cores and support for FB-DDR3 to allow large memory. It has four (or more?) QuickPath interfaces, so it can be used in at least quad-socket configurations. It is expected to be launched in 2009.[20]

[edit] Supercomputers

Supercomputers based on Xeon processors in the top ten of the Top500 fastest supercomputers in the world:

  • After upgrades from Pentium Pro to Xeon, ASCI Red reclaimed its #1 spot in 1999 with a speed of 2.4 TFLOPS [21]
  • an Intel Xeon system at SGI in Chippewa Falls, Wisconsin. Machine: SGI Altix ICE 8200 system with 3584 Quad-Core Clovertown processors at 3.0 GHz and InfiniBand interconnect. This supercomputer was listed in third place in November 2007, ahead of the fastest Itanium and Opteron-based supercomputers but behind two PowerPC-based Blue Gene systems. [22]

Xeon processor based system, in the top 20 of the fastest systems by memory bandwidth as measured by STREAM benchmark: [23]

  • an Intel Xeon virtual SMP system leveraging ScaleMP's Versatile SMP (vSMP) architecture with 128 cores and 1TB RAM [24]. This system aggregates 16 Stoakley platform (Seaburg chipset) systems with total of 32 Harpertown processors.

[edit] See also

[edit] References

  1. ^ Transistorized memory, such as RAM and cache sizes (other than solid state disk devices such as USB drives, CompactFlash cards, and so on) as well as CD-based storage size are specified using binary meanings for K (10241), M (10242), G (10243), ...
  2. ^ "Intel drops 32-bit dual-core LV processors". TG Daily. http://www.tgdaily.com/content/view/33150/135/. Retrieved on 2007-07-31. 
  3. ^ New High-End Intel Server Processors Expand Performance Leadership, Intel News Release.
  4. ^ Intel prices up Woodcrest, Tulsa server chips, The Inquirer.
  5. ^ Intel Adds Low End Xeons to Roadmap, DailyTech
  6. ^ Intel Readies New Xeons and Price Cuts, WinBeta.org
  7. ^ Processor Spec Finder
  8. ^ HTN_WDP_Datasheet.book
  9. ^ Intel bringt neue Prozessoren für den Embedded-Markt auf Basis seiner 45nm-Fertigungstechnologie
  10. ^ Intel Hard-Launches Three New Quad-core Processors, DailyTech
  11. ^ "Intel Clovertowns step up, reduce power". TG Daily. http://www.tgdaily.com/content/view/33708/135/. Retrieved on 2007-09-05. 
  12. ^ a b Quad-core Xeon Details Unveiled, DailyTech
  13. ^ Intel Ignites Quad-Core Era, Intel News Release.
  14. ^ Intel Readies New Xeons and Price Cuts, DailyTech
  15. ^ Quad-Core Intel Xeon Processor E5405, Intel ARK (Automated Relational Knowledgebase)
  16. ^ Intel Readies 1600 MHz Front-Side Bus Xeons, DailyTech
  17. ^ Intel Xeons Coming With 1600MHz FSB, TrustedReviews
  18. ^ Valich, Theo (2008-02-25). "Intel six-core coming in 2008". TG Daily (Tigervision Media). http://www.tgdaily.com/content/view/36198/135/. Retrieved on 2008-02-26. 
  19. ^ AnandTech: Intel Xeon 5570: Smashing SAP records, December 16th, 2008
  20. ^ The road from Aliceton leads to - The INQUIRER
  21. ^ "ASCI Red ranking history". Top500. http://www.top500.org/system/ranking/4428. 
  22. ^ TOP500 List - November 2007 (1-100)
  23. ^ STREAM benchmark, Dr. John D. McCalpin
  24. ^ STREAM Top 20

[edit] External links

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