Intel Xeon E5-2643 vs E5-2620 v2

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Combined performance score

Xeon E5-2620 v2
4.06
+14.7%

E5-2620 v2 outperforms E5-2643 by 15% in our combined benchmark results.

General info

Comparing Xeon E5-2620 v2 and Xeon E5-2643 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking13051416
Place by popularitynot in top-100not in top-100
Value for money2.361.65
Market segmentServerServer
Architecture codenameIvy Bridge-EP (2013)Sandy Bridge-EP (2012)
Release date1 September 2013 (10 years old)6 March 2012 (12 years old)
Launch price (MSRP)$417$218
Current price$164 (0.4x MSRP)$175 (0.8x MSRP)
Value for money

Performance per price, higher is better.

Xeon E5-2620 v2 has 43% better value for money than Xeon E5-2643.

Technical specs

Xeon E5-2620 v2 and Xeon E5-2643 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 cores6 (Hexa-Core)4 (Quad-Core)
Threads128
Base clock speed2.1 GHz3.3 GHz
Boost clock speed2.6 GHz3.5 GHz
L1 cache64 KB (per core)64 KB (per core)
L2 cache256 KB (per core)256 KB (per core)
L3 cache15 MB (shared)10240 KB (shared)
Chip lithography22 nm32 nm
Die size160 mm2294 mm2
Maximum core temperature71 °C73 °C
Number of transistors1,400 million1,270 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo

Compatibility

Information on Xeon E5-2620 v2 and Xeon E5-2643 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)80 Watt130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2620 v2 and Xeon E5-2643. 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++
TSX-no data
Idle States++
Thermal Monitoring++
Flex Memory Access--
Demand Based Switching++
PAE46 Bitno data
StatusDiscontinuedDiscontinued

Security technologies

Xeon E5-2620 v2 and Xeon E5-2643 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Key+no data
Identity Protection--
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2620 v2 and Xeon E5-2643 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2620 v2 and Xeon E5-2643. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size768 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 E5-2620 v2 and Xeon E5-2643.

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 E5-2620 v2 4.06
+14.7%
Xeon E5-2643 3.54

E5-2620 v2 outperforms E5-2643 by 15% in our combined benchmark results.


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.

Benchmark coverage: 68%

Xeon E5-2620 v2 6242
+14.9%
Xeon E5-2643 5433

E5-2620 v2 outperforms E5-2643 by 15% in Passmark.

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.

Benchmark coverage: 42%

Xeon E5-2620 v2 416
Xeon E5-2643 580
+39.4%

E5-2643 outperforms E5-2620 v2 by 39% in GeekBench 5 Single-Core.

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.

Benchmark coverage: 42%

Xeon E5-2620 v2 2118
+3.3%
Xeon E5-2643 2050

E5-2620 v2 outperforms E5-2643 by 3% in GeekBench 5 Multi-Core.

Gaming performance

Advantages and disadvantages


Performance score 4.06 3.54
Recency 1 September 2013 6 March 2012
Physical cores 6 4
Threads 12 8
Cost $417 $218
Chip lithography 22 nm 32 nm
Power consumption (TDP) 80 Watt 130 Watt

The Xeon E5-2620 v2 is our recommended choice as it beats the Xeon E5-2643 in performance tests.


Should you still have questions on choice between Xeon E5-2620 v2 and Xeon E5-2643, ask them in Comments section, and we shall answer.

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Xeon E5-2620 v2
Xeon E5-2620 v2
Intel Xeon E5-2643
Xeon E5-2643

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Questions and comments

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