Intel Xeon E5-2640 

Released March, 2012
  • 2.5 GHz
  • Hexa core
5.4 Out of 10

It is clear that Intel has improved AVX efficiency quite a bit.
by Johan-De-Gelas (Sep, 2014)
Perhaps more surprising is that it even performs well in our FP intensive applications.
by Johan-De-Gelas (Sep, 2014)

CPUBoss Review Our evaluation of the Intel Xeon E5-2640 among all CPUs

Performance

Benchmark performance using all cores

Xeon E5-2640
6.2
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Xeon E5-2640
7.4
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Xeon E5-2640
0.0
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Xeon E5-2640
0.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Xeon E5-2640
5.0
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Xeon E5-2640
5.7
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

5.4

CPUBoss Score

Combination of all six facets

Xeon E5-2640
5.4

Benchmarks Real world tests of the Intel Xeon E5-2640

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2640
9,664
Xeon E5-2650
5,977

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5-2640
2,099
Xeon E5-2650
1,701

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2640
1,400,000 MB/s
Xeon E5-2650
1,350,000 MB/s
Xeon E5 2640 v2
1,385,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5-2640
16,730
Xeon E5-2650
19,887

GeekBench

Xeon E5-2640
16,730
Xeon E5-2650
25,599

PassMark Data courtesy Passmark

Xeon E5-2640
9,708
Xeon E5-2650
10,425

PassMark (Single Core)

Xeon E5-2640
1,961
Xeon E5-2650
1,315

In The News From around the web

8
Sep

Intel Xeon E5 Version 3: Up to 18 Haswell EP Cores

by Johan De Gelas |
www.anandtech.com
However, it's not a case of the Haswell's L3 cache being a lot worse: the 20MB L3 cache of the Xeon E5-2667 v3 is only slightly slower than the Xeon E5-2690 and is still faster than the Xeon E5-2697 v2 (30MB).
Of course, those kind of bandwidth numbers only matter for specific HPC benchmarks as the L3 cache (30-45MB L3) will take care of most of the requests.
16
Dec

Intel Broadwell-EP Xeon E5 v4 Because Why Not?

by Scott Michaud |
www.pcper.com
They claim it will be Intel's first 14nm Xeon processor which obviously suggests that it will not be preceded by Broadwell in the lower performance server categories.
Intel will apparently allow Haswell and Broadwell to give off a little more heat than their predecessors.

Specifications Full list of technical specs

summary

Clock speed 2.5 GHz
Turbo clock speed 3 GHz
Cores Hexa core
Socket type LGA 2011

features

Has a NX bit Yes
Supports trusted computing Yes
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. AES
  3. SSE
  4. SSE2
  5. SSE4.1
  6. SSE3
  7. Supplemental SSE3
  8. SSE4.2
  9. AVX
Supports dynamic frequency scaling Yes

power consumption

TDP 95W
Annual home energy cost 22.89 $/year
Annual commercial energy cost 83.22 $/year
Performance per watt 7.55 pt/W
Typical power consumption 77.19W

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1333
  2. DDR3-1066
  3. DDR3-800
  4. DDR3
Channels Quad Channel
Supports ECC Yes
Maximum bandwidth 42,666.64 MB/s
Maximum memory size 393,216 MB

details

Architecture x86-64
Threads 12 threads
L2 cache 2 MB
L2 cache per core 0.33 MB/core
L3 cache 15 MB
L3 cache per core 2.5 MB/core
Manufacture process 32 nm
Max CPUs 2
Clock multiplier 30
Voltage range 0.6 - 1.35V
Operating temperature Unknown - 73°C

overclocking

Overclock popularity 3
Overclocked clock speed 2.8 GHz
Overclocked clock speed (Water) 2.5 GHz
Overclocked clock speed (Air) 2.8 GHz

integrated graphics

GPU None

bus

Architecture QPI
Data rate 57,600 MB/s
Transfer rate 7,200 MT/s
Clock speed 3,600 MHz
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