AMD Opteron 4256 EE 

Released November, 2011
  • 1.6 GHz
  • Octa core

Features Key features of the AMD Opteron 4256 EE

clock speed

Opteron 4256 EE
1.6 GHz
Xeon X5570
2.93 GHz
Opteron 4365
2 GHz

turbo clock speed

Opteron 4256 EE
2.8 GHz
Xeon X5570
3.33 GHz

L2 cache

Opteron 4256 EE
8 MB
Xeon X5570
1 MB

L3 cache

Opteron 4256 EE
8 MB
Xeon X5570
8 MB

overclocked clock speed (air)

Opteron 4256 EE
1.6 GHz
Xeon X5570
3.76 GHz
Opteron 4365
2.8 GHz

overclocked clock speed (water)

Opteron 4256 EE
1.6 GHz
Xeon X5570
4.59 GHz
Opteron 4365
2.8 GHz

Specifications Full list of technical specs

summary

Clock speed 1.6 GHz
Turbo clock speed 2.8 GHz
Cores Octa core
Socket type C32
Is unlocked No

features

Has a NX bit Yes
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. AES
  3. SSE
  4. SSE2
  5. SSE4a
  6. SSE3
  7. Supplemental SSE3
  8. SSE4

power consumption

TDP 35W
Annual home energy cost 8.43 $/year
Annual commercial energy cost 30.66 $/year
Typical power consumption 28.44W

memory controller

Memory controller Built-in
Memory type DDR3-1600

details

Threads 8 threads
L2 cache 8 MB
L2 cache per core 1 MB/core
L3 cache 8 MB
L3 cache per core 1 MB/core
Manufacture process 32 nm
Max CPUs 2
Clock multiplier 14
Operating temperature Unknown - 64°C

overclocking

Overclocked clock speed 1.6 GHz
Overclocked clock speed (Water) 1.6 GHz
Overclocked clock speed (Air) 1.6 GHz

integrated graphics

GPU None

bus

Architecture HyperTransport 3.0
Transfer rate 6,400 MT/s
Clock speed 3,200 MHz
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