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Item#: N82E16819117111

Intel Xeon X5355 Clovertown 2.66GHz 2 x 4MB L2 Cache LGA 771 120W 2U Passive Processor BX80563X5355P

  • 1333MHz FSB
  • 65 nm Clovertown
  • 2 x 4MB L2 Cache
  • 120W
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The Quad Core Xeon X5355 processor delivers impressive performance per watt numbers and up to 4 times the performance of earlier generation single-core processors. A massive 8MB increases efficiency of L2 cache-to-core data transfers, maximizing main memory to processor bandwidth and reducing latency, up to 4MB of L2 cache can be allocated to one core. The 64bit cores are designed to handle all of today’s x86 32bit software with ease and effortlessly migrate to 64bit software.

Fully buffered DIMM technology allows up to 21GB/s which is 3 times the bandwidth of previous technology. You also get 4 times the memory capacity of up to 64GB. Intel Acceleration Technology helps with this and cuts CPU overhead by up to 40% which lets it handle other tasks more efficiently.

You also get Intel Virtualization Technology hardware enhancements that support software based virtualization. It works with VMware, Virtual PC and XenSource and products from an increasing number of software vendors. Virtualization combined with multiple cores gives you maximum power and performance per square foot.

  • newegg Quad-core Processing with 8MB L2 Cache The Intel Xeon X5355 processor features four complete processor cores in one physical package. Significant performance headroom, especially for multi-threaded applications, helps boost system utilization through virtualization and application responsiveness. Its 8MB (2 x 4MB) L2 cache increases efficiency of L2 cache-to-processor data transfer, maximizes main memory to processor bandwidth and reduces latency.
  • newegg Supports Intel Virtualization Technology (Intel VT) With Intel VT, one hardware platform functions as multiple “virtual” platforms. For business, Intel VT offers improved manageability, limiting downtime and maintaining worker productivity by isolating computing activities into separate partitions. In the home, Intel VT allows creating unique user environments for multiple family members using the same platform simultaneously.
  • newegg Intel Extended Memory 64 Technology (Intel EM64T) Enhances next-generation IA-32 platforms with 64-bit addressability and related instructions, allowing flexibility for both 64-bit and 32-bit applications and operating systems.
  • newegg Execute Disable Bit (EDB) Intel's Execute Disable Bit function can prevent certain classes of malicious "buffer overflow" attacks when combined with a supporting operating system. Execute Disable Bit allows the processor to classify areas in memory where application code can execute and where it cannot. When a malicious worm attempts to insert code in the buffer, the processor disables code execution, preventing damage or worm propagation.
  • newegg Enhanced Intel SpeedStep Technology (EIST) EIST allows the system to dynamically adjust processor voltage and core frequency to decrease average power consumption and average heat production. Combined with existing power saving features, EIST may provide an excellent balance between providing power when you need it and conserving power when you don’t.

Learn more about Xeon X5355

Quick Info

Warranty

  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years


Customer Reviews of Xeon X5355

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  • Clarence W.
  • 9/26/2008 5:08:16 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsSuper-Fast!!

Pros: Super-Fast CPU..Great for multithreaded applications, and VMWare, Quad core!

Cons: Producers alot of heat...

Other Thoughts: I use 2 of these quad core processors in a DAW machine for music production and I highly recommend this CPU for anyone with the technical know-how to configure their operating system to take advantage of everything it has to offer. Thanks.

Did you find this review helpful? Yes No

  • Anonymous
  • 12/15/2007 10:44:52 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSolid performer, Great multi-tasker

Pros: Running (2) X5355's in a Supermicro X7DWA-N motherboard and comparing to last system (2) Opteron 285's in a Supermicro H8DCE motherboard. Sony Vegas video rendering @ 23% faster. An associate with the same X7DWA-N board is running (2) dual core extremes @ 3.0 and can render 3% faster despite having half the cores. It all depends on the applications, if they are highly threaded and can take advantage of (8) cores it's better, more often than not the dual core extremes of a higher MHz will outperform. The multi-tasking is outstanding!!! I have an air-shroud so passive cooling is fine but somewhat noisy with 5,000 rpm fans @ 46 db.

Cons: If you already are running AMD or Intel dual cores I recommend waiting for 45nm to get a larger gain. If you're still running a P4 then buy it, the gains will be well worth the price. There is nothing negative about this chip.

Other Thoughts: Due for a $200 price drop once the 45ns processors are out 3 - 4 months, April 2008. The E5472 with 1600 FSB will be the processor to get next year.

2 out of 2 people found this review helpful. Did you? Yes No

  • Julian K.
  • 5/24/2007 9:30:27 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsNeeds cooling

Pros: Super fast. Install of Windows Vista and other programs has been so quick I was sure something was wrong. Vista 64-bit running great and quick.

Cons: Passive Heat Sink not the best idea. When I run the chips for about 40min, enough time to get them hot without putting a huge load on them with an insense program, one is already only 9 degrees C below max temp according to my BIOS. I probably do not have sufficient airflow to the heatsinks. Go with the active cooling or upgrade to better fans etc. also I talked to Intel and they siggested upgrading BIOS would help a lot. Also running 64-bit Vista is a bit of a hassle when you want to install... anything. Not much driver support out there and I can't install a wireless adapter to get internet to upgrade the BIOS!!

Other Thoughts: 2 Xeon Clovertown 2.66ghz
Tyan 2696 motherboard
Lian PC-V2000B (maybe part of the cooling problem because CPUs are far from the fan and airflow is weak even at full speed)
BFG 8800 GTX (actually would think this card would only facilitate airflow in the Lian case if there were more fans.)
Windows Vista Ultimate

6 out of 10 people found this review helpful. Did you? Yes No

  • James B.
  • 5/24/2007 6:54:05 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsFA$T!!!!!

Pros: Really fast!! got two of these to replace old 2.0 Ghz ones which were decent. These are fast!!!!

Cons: Lound heatsink, am modifying to fit 80mm fans

Other Thoughts: have the old 2.0s but don't know what to do with them......
My rig: Starlake
Intel S5000xvn
Dual Xeon 5355 at 2.66
ATi x1950 Pro
2 GB FB RAM

2 out of 5 people found this review helpful. Did you? Yes No

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Item#: N82E16819117111
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