Xeon E5620 vs i7-875K

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Aggregate performance score

Core i7-875K
2010
4 cores / 8 threads, 95 Watt
1.95
Xeon E5620
2010
4 cores / 8 threads, 80 Watt
2.26
+15.9%

Xeon E5620 outperforms Core i7-875K by a moderate 16% based on our aggregate benchmark results.

Primary details

Comparing Core i7-875K and Xeon E5620 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking19551827
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.100.08
Market segmentDesktop processorServer
Power efficiency1.942.67
Architecture codenameLynnfield (2009−2010)Westmere-EP (2010−2011)
Release date30 May 2010 (14 years ago)16 March 2010 (14 years ago)
Launch price (MSRP)$486$35

Cost-effectiveness evaluation

Performance per price, higher is better.

i7-875K has 25% better value for money than Xeon E5620.

Detailed specifications

Core i7-875K and Xeon E5620 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 cores4 (Quad-Core)4 (Quad-Core)
Threads88
Base clock speed2.93 GHz2.4 GHz
Boost clock speed3.6 GHz2.66 GHz
Bus rate2.5 GT/sno data
L1 cache64 KB (per core)64 KB (per core)
L2 cache256 KB (per core)256 KB (per core)
L3 cache8 MB (shared)12 MB (shared)
Chip lithography45 nm32 nm
Die size296 mm2239 mm2
Maximum core temperature73 °C78 °C
Number of transistors774 million1,170 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Core i7-875K and Xeon E5620 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 configuration12
SocketFCLGA1156,LGA1156FCLGA1366,LGA1366
Power consumption (TDP)95 Watt80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-875K and Xeon E5620. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2Intel® SSE4.2
AES-NI-+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology1.01.0
Hyper-Threading Technology++
Idle States++
Demand Based Switching-+
PAE36 Bit40 Bit

Security technologies

Core i7-875K and Xeon E5620 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-875K and Xeon E5620 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-875K and Xeon E5620. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size16 GB288 GB
Max memory channels23
Maximum memory bandwidth21 GB/s25.6 GB/s
ECC memory support-+

Peripherals

Specifications and connection of peripherals supported by Core i7-875K and Xeon E5620.

PCIe version2.02.0
PCI Express lanes16no data

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.

i7-875K 1.95
Xeon E5620 2.26
+15.9%

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.

i7-875K 3100
Xeon E5620 3592
+15.9%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i7-875K 509
+38.7%
Xeon E5620 367

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i7-875K 1766
+20.3%
Xeon E5620 1468

Gaming performance

Pros & cons summary


Performance score 1.95 2.26
Recency 30 May 2010 16 March 2010
Chip lithography 45 nm 32 nm
Power consumption (TDP) 95 Watt 80 Watt

i7-875K has an age advantage of 2 months.

Xeon E5620, on the other hand, has a 15.9% higher aggregate performance score, a 40.6% more advanced lithography process, and 18.8% lower power consumption.

The Xeon E5620 is our recommended choice as it beats the Core i7-875K in performance tests.

Note that Core i7-875K is a desktop processor while Xeon E5620 is a server/workstation one.


Should you still have questions on choice between Core i7-875K and Xeon E5620, ask them in Comments section, and we shall answer.

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Intel Core i7-875K
Core i7-875K
Intel Xeon E5620
Xeon E5620

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Community ratings

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


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Questions & comments

Here you can ask a question about Core i7-875K or Xeon E5620, agree or disagree with our judgements, or report an error or mismatch.