Xeon E5-2637 vs E5-2665

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Aggregate performance score

Xeon E5-2665
2012
8 cores / 16 threads, 115 Watt
5.43
+178%

Xeon E5-2665 outperforms Xeon E5-2637 by a whopping 178% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5-2665 and Xeon E5-2637 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking11751968
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation7.75no data
Market segmentServerServer
Power efficiency4.312.22
Architecture codenameSandy Bridge-EP (2012)Sandy Bridge-EP (2012)
Release date6 March 2012 (12 years ago)6 March 2012 (12 years ago)
Launch price (MSRP)$142no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E5-2665 and Xeon E5-2637 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores8 (Octa-Core)2 (Dual-core)
Threads164
Base clock speed2.4 GHz3 GHz
Boost clock speed3.1 GHz3.5 GHz
Bus rate8 GT/s8 GT/s
L1 cache64 KB (per core)64 KB (per core)
L2 cache256 KB (per core)256 KB (per core)
L3 cache20480 KB (shared)5120 KB (shared)
Chip lithography32 nm32 nm
Die size435 mm2294 mm2
Maximum core temperature82 °C70 °C
Number of transistors2,270 million1,270 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon E5-2665 and Xeon E5-2637 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration22
SocketFCLGA2011FCLGA2011
Power consumption (TDP)115 Watt80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2665 and Xeon E5-2637. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXIntel® AVX
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
Idle States++
Thermal Monitoring++
Flex Memory Access--
Demand Based Switching++

Security technologies

Xeon E5-2665 and Xeon E5-2637 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2665 and Xeon E5-2637 are enumerated here.

VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2665 and Xeon E5-2637. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size384 GB384 GB
Max memory channels44
Maximum memory bandwidth51.2 GB/s51.2 GB/s
ECC memory support++

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2665 and Xeon E5-2637.

PCIe version3.03.0
PCI Express lanes4040

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Xeon E5-2665 5.43
+178%
Xeon E5-2637 1.95

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Xeon E5-2665 8307
+179%
Xeon E5-2637 2978

Gaming performance

Pros & cons summary


Performance score 5.43 1.95
Physical cores 8 2
Threads 16 4
Power consumption (TDP) 115 Watt 80 Watt

Xeon E5-2665 has a 178.5% higher aggregate performance score, and 300% more physical cores and 300% more threads.

Xeon E5-2637, on the other hand, has 43.8% lower power consumption.

The Xeon E5-2665 is our recommended choice as it beats the Xeon E5-2637 in performance tests.


Should you still have questions on choice between Xeon E5-2665 and Xeon E5-2637, ask them in Comments section, and we shall answer.

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Intel Xeon E5-2665
Xeon E5-2665
Intel Xeon E5-2637
Xeon E5-2637

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.2 73 votes

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4.3 3 votes

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Questions & comments

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