Intel Xeon E5-2643 

Released March, 2012
  • 3.3 GHz
  • Quad core
8 Out of 10

Clock speed has clearly been traded in for more cores in most of server SKUs.
by Johan-De-Gelas (Sep, 2014)
Take the following graph with a grain of salt as the benchmark is not the most accurate (results tend to vary by 5-8%), but still it gives a rough idea of what you can expect.
by Johan-De-Gelas (Sep, 2014)

CPUBoss Review Our evaluation of the Intel Xeon E5-2643

Performance

Benchmark performance using all cores

Xeon E5-2643
8.9
Passmark and GeekBench (32-bit)

Single-core Performance

Individual core benchmark performance

Xeon E5-2643
9.1
Passmark (Single Core)

Cost to Run

Xeon E5-2643
5.2
Commercial Energy Cost

Value

Xeon E5-2643
6.8
Performance Per Dollar

8

CPUBoss Score

Performance, Single-core Performance, Cost to Run and Value

Xeon E5-2643
8.0

Benchmarks Real world tests of the Intel Xeon E5-2643

GeekBench (32-bit)

Xeon E5-2643
11,993
Xeon E5-2667
22,009
Xeon E5-2650
21,614

GeekBench

Xeon E5-2643
11,993
Xeon E5-2667
26,818
Xeon E5-2650
25,599

Passmark

Xeon E5-2643
11,735
Xeon X5687
7,333
Core i7 4770K
10,016

Passmark (Single Core)

Xeon E5-2643
1,843
Xeon E5-2650
1,311

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 3.3 GHz
Turbo clock speed 3.5 GHz
Cores Quad core
Socket type LGA 2011
Is hyperthreaded Yes

features

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

power consumption

TDP 130W
Annual home energy cost 31.32 $/year
Annual commercial energy cost 113.88 $/year
Performance per watt 13.92 pt/W
Typical power consumption 105.63W

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1600
  2. DDR3-1333
  3. DDR3-1066
  4. DDR3-800
Channels Quad Channel
Supports ECC Yes
Maximum bandwidth 51,200 MB/s
Maximum memory size 393,216 MB

details

Architecture x86-64
Threads 8 threads
L2 cache 1 MB
L2 cache per core 0.25 MB/core
L3 cache 10 MB
L3 cache per core 2.5 MB/core
Manufacture process 32 nms
Max CPUs 2
Clock multiplier 35
Voltage range 0.6 - 1.35V
Operating temperature Unknown - 73°C

gpu

GPU None
Label None
Latest DirectX None
Number of displays supported None
GPU clock speed None
Turbo clock speed None
3DMark06 None

bus

Architecture QPI
Data rate 64,000 MB/s
Transfer rate 8,000 MT/s
Clock speed 4,000 MHz
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