Intel Xeon X5647 

Released February, 2011
  • 2.93 GHz
  • Quad core

Benchmarks Real world tests of the Intel Xeon X5647

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5647
Core i7 3770K
Core i7 4790

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5647
Core i7 4790

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5647
2,440 MB/s
Core i7 4790
4,570,000 MB/s
Core i7 3770K
2,620,000 MB/s

PassMark Data courtesy Passmark

Xeon X5647
Core i7 4790

PassMark (Single Core)

Xeon X5647
Core i7 4790

Specifications Full list of technical specs


Clock speed 2.93 GHz
Turbo clock speed 3.2 GHz
Cores Quad core
Socket type LGA 1366


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. SSE4
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 1.65 pt/W
Typical power consumption 105.63W

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1066
  2. DDR3-800
  3. DDR3
Channels Triple Channel
Supports ECC Yes
Maximum bandwidth 25,599.99 MB/s
Maximum memory size 294,912 MB


Architecture x86-64
Threads 8 threads
L2 cache 1 MB
L2 cache per core 0.25 MB/core
L3 cache 12 MB
L3 cache per core 3 MB/core
Manufacture process 32 nm
Max CPUs 2
Clock multiplier 22
Voltage range 0.75 - 1.35V
Operating temperature Unknown - 80.4°C


Overclocked clock speed 3.2 GHz
Overclocked clock speed (Water) 2.93 GHz
Overclocked clock speed (Air) 3.2 GHz

integrated graphics

GPU None


Architecture QPI
Data rate 46,928 MB/s
Transfer rate 5,860 MT/s
Clock speed 2,930 MHz
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Showing 1 comment.
Very good processor. Bought it used for less than $70. But needs xeon motherboard for ECC, which often have no audio and have only PCI 3.3volt - not every sound card is compatible - watch out.
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