Intel Xeon E5-2658 vs E5-1620

General info

Comparing Xeon E5-2658 and Xeon E5-1620 processor market type (desktop or notebook), architecture, sales start time and price.

Place in our rating
Value for money (0-100)
Market segment
Architecture codename
Sandy Bridge-EP
Sandy Bridge EP
Launch date
6 March 2012 (9 years ago)
March 2012 (9 years ago)
Launch price (MSRP)
Price now
$177 (0.1x MSRP)
$54 (0.2x MSRP)

Technical specs

Xeon E5-2658 and Xeon E5-1620 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 cores
8 (Octa-Core)
4 (Quad-Core)
Base clock speed
2.1 GHz
3.6 GHz
Boost clock speed
2.4 GHz
3.8 GHz
L1 cache
64 KB (per core)
64 KB (per core)
L2 cache
256 KB (per core)
256 KB (per core)
L3 cache
20480 KB (shared)
10240 KB (shared)
Chip lithography
32 nm
32 nm
Die size
435 mm2
294 mm2
Maximum core temperature
no data
64 °C
Number of transistors
2,270 million
1270 million
64 bit support
VID voltage range
no data
0.6V - 1.35V


Information on Xeon E5-2658 and Xeon E5-1620 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 configuration
Thermal design power (TDP)
95 Watt
130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2658 and Xeon E5-1620. You'll probably need this information if you require some particular technology.

Instruction set extensions
no data
Intel® AVX
no data
Enhanced SpeedStep (EIST)
no data
Turbo Boost Technology
no data
Hyper-Threading Technology
Idle States
no data
Thermal Monitoring
Flex Memory Access
no data
Demand Based Switching
no data

Security technologies

Xeon E5-2658 and Xeon E5-1620 technologies aimed at improving security, for example, by protecting against hacks.

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2658 and Xeon E5-1620 are enumerated here.

no data
no data
no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2658 and Xeon E5-1620. Depending on the motherboards, higher memory frequencies may be supported.

Supported memory types
DDR3 Quad-channel
DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600
Maximum memory size
no data
375 GB
Max memory channels
no data
Maximum memory bandwidth
no data
51.2 GB/s
ECC memory support


Specifications and connection of peripherals supported by Xeon E5-2658 and Xeon E5-1620.

PCIe version
no data
PCI Express lanes
no data

Benchmark performance

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

Overall 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 E5-2658 6.92 +3.4%
Xeon E5-1620 6.69


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 E5-2658 6073 +3.5%
Xeon E5-1620 5870

Gaming performance

Let's see how good Xeon E5-2658 and Xeon E5-1620 are for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately. Also, your gaming PC must have a decent enough GPU to perform well.

Both CPUs satisfy the 99% minimum and 92% recommended requirements of all games known to us.


Advantages of Intel Xeon E5-2658

3.4% better performance in benchmarks

Lower power consumption (95W vs 130W), meaning that the rival with higher TDP might require a better cooler or other thermal solution.

Advantages of Intel Xeon E5-1620

Cheaper ($54 vs $177)

Higher boost clock speed (3600 vs 2400 MHz)

Thermal Monitoring Technologies


So, which one is the better CPU?

Technical City couldn't decide between Intel Xeon E5-2658 and Intel Xeon E5-1620. The differences in performance seem too small.

Should you still have questions on choice between Xeon E5-2658 and Xeon E5-1620, ask them in Comments section, and we shall answer.

Cast your vote

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

Intel Xeon E5-2658
Intel Xeon E5-1620

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Advices and comments

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