Intel Xeon E7-4820 

Released April, 2011
  • 2 GHz
  • Octa core

Features Key features of the Intel Xeon E7-4820

clock speed

Xeon E7-4820
2 GHz
Xeon E5-2620
2 GHz

turbo clock speed

Xeon E7-4820
2.27 GHz
Xeon E7-4820 v2
2.5 GHz
Xeon E5-2620
2.5 GHz

L2 cache

Xeon E7-4820
2 MB

L3 cache

Xeon E7-4820
18 MB
Xeon E5-2620
15 MB

TDP

Xeon E7-4820
105W

Specifications Full list of technical specs

summary

Clock speed 2 GHz
Turbo clock speed 2.27 GHz
Cores Octa core
Socket type LGA 1567

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. SSE4
Supports dynamic frequency scaling Yes

power consumption

TDP 105W
Annual home energy cost 25.29 $/year
Annual commercial energy cost 91.98 $/year
Typical power consumption 85.31W

bus

Architecture QPI
Data rate 23,464 MB/s
Transfer rate 5,860 MT/s
Clock speed 2,930 MHz

details

Architecture x86-64
Threads 16 threads
L2 cache 2 MB
L2 cache per core 0.25 MB/core
L3 cache 18 MB
L3 cache per core 2.25 MB/core
Manufacture process 32 nm
Max CPUs 4
Clock multiplier 15
Operating temperature Unknown - 64°C

integrated graphics

GPU None

memory controller

Memory controller Built-in
Memory type
  1. DDR3
  2. DDR
Channels Quad Channel
Supports ECC Yes
Maximum bandwidth 25,600 MB/s
Maximum memory size 2,097,152 MB
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