Intel Xeon E3-1285 v6 vs E5-2643 v2

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Combined performance score

Xeon E5-2643 v2
5.95
+7%

E5-2643 v2 outperforms E3-1285 v6 by 7% in our combined benchmark results.

General info

Comparing Xeon E5-2643 v2 and Xeon E3-1285 v6 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking10021039
Place by popularitynot in top-100not in top-100
Value for money2.192.47
Market segmentServerServer
Seriesno dataIntel Xeon E3
Architecture codenameIvy Bridge-EP (2013)Kaby Lake-DT (2017)
Release date1 September 2013 (10 years old)1 August 2017 (6 years old)
Launch price (MSRP)$2,200$450
Current price$397 (0.2x MSRP)$950 (2.1x MSRP)
Value for money

Performance per price, higher is better.

Xeon E3-1285 v6 has 13% better value for money than Xeon E5-2643 v2.

Technical specs

Xeon E5-2643 v2 and Xeon E3-1285 v6 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 speed3.5 GHz4.1 GHz
Boost clock speed3.8 GHz4.5 GHz
Bus supportno data8 GT/s
L1 cache64 KB (per core)64K (per core)
L2 cache256 KB (per core)256K (per core)
L3 cache15 MB (shared)8 MB (shared)
Chip lithography22 nm14 nm
Die size160 mm2160 mm2
Maximum core temperature74 °Cno data
Number of transistors1,400 million1,400 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo

Compatibility

Information on Xeon E5-2643 v2 and Xeon E3-1285 v6 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 configuration21
SocketFCLGA2011LGA-1151
Power consumption (TDP)130 Watt79 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2643 v2 and Xeon E3-1285 v6. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
TSX-+
Idle States++
Thermal Monitoring++
Flex Memory Access-no data
Demand Based Switching+no data
PAE46 Bitno data
StatusDiscontinuedLaunched

Security technologies

Xeon E5-2643 v2 and Xeon E3-1285 v6 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Key++
MPXno data+
Identity Protection-no data
SGXno dataYes with Intel® ME
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2643 v2 and Xeon E3-1285 v6 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2643 v2 and Xeon E3-1285 v6. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4-2400, DDR3L-1866
Maximum memory size768 GB64 GB
Max memory channels42
Maximum memory bandwidth59.7 GB/s37.5 GB/s
ECC memory support++

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics P630
Max video memoryno data64 GB
Quick Sync Videono data+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1.15 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Xeon E5-2643 v2 and Xeon E3-1285 v6 integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPortno data+
HDMIno data+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Xeon E5-2643 v2 and Xeon E3-1285 v6 integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2160@24Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz
Max resolution over VGAno dataN/A

Graphics API support

APIs supported by Xeon E5-2643 v2 and Xeon E3-1285 v6 integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.4

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2643 v2 and Xeon E3-1285 v6.

PCIe version3.03.0
PCI Express lanes4016

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 E5-2643 v2 5.95
+7%
Xeon E3-1285 v6 5.56

E5-2643 v2 outperforms E3-1285 v6 by 7% 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 E5-2643 v2 9134
+7%
Xeon E3-1285 v6 8536

E5-2643 v2 outperforms E3-1285 v6 by 7% in Passmark.

Gaming performance

Advantages and disadvantages


Performance score 5.95 5.56
Recency 1 September 2013 1 August 2017
Physical cores 6 4
Threads 12 8
Cost $2200 $450
Chip lithography 22 nm 14 nm
Power consumption (TDP) 130 Watt 79 Watt

We couldn't decide between Xeon E5-2643 v2 and Xeon E3-1285 v6. The differences in performance seem too small.


Should you still have questions on choice between Xeon E5-2643 v2 and Xeon E3-1285 v6, 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 E5-2643 v2
Xeon E5-2643 v2
Intel Xeon E3-1285 v6
Xeon E3-1285 v6

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