Intel Core i7 3820 

Released February, 2012
  • 3.6 GHz
  • Quad core
  • Unlocked

Benchmarks Real world tests of the Intel Core i7 3820

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 3820
0.76 fps
Core i7 3770
-1 fps
Core i7 3770K
1.67 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 3820
12,538
Core i7 3770K
13,098
Core i7 3770
12,524

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 3820
3,098
Core i7 3770
3,236

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 3820
2,500,000 MB/s
Core i7 3770
2,660,000 MB/s
Core i7 3770K
2,620,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 3820
12,550
Core i7 3770K
13,703
Core i7 3770
12,495

GeekBench (64-bit) Data courtesy Primate Labs

Core i7 3820
13,644
Core i7 3770K
14,866
Core i7 3770
13,300

PassMark Data courtesy Passmark

Core i7 3820
8,998
Core i7 3770
9,449

PassMark (Single Core)

Core i7 3820
1,943
Core i7 3770
2,072

Reviews Word on the street for the Intel Core i7 3820


8.0

8.0

9.7

Overall

8.7 Out of 10

Specifications Full list of technical specs

summary

Clock speed 3.6 GHz
Turbo clock speed 3.8 GHz
Cores Quad core
Socket type LGA 2011
Is unlocked Yes

features

Has a NX bit Yes
Supports trusted computing No
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
  10. SSE4
Supports dynamic frequency scaling Yes

integrated graphics

GPU None

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1600
  2. DDR3-1333
  3. DDR3-1066
  4. DDR3
Channels Quad Channel
Supports ECC No
Maximum bandwidth 51,200 MB/s
Maximum memory size 65,771.52 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 nm
Transistor count 1,270,000,000
Max CPUs 1
Clock multiplier 36
Voltage range 0.6 - 1.35V
Operating temperature Unknown - 66.8°C

overclocking

Overclock popularity 142
Overclock review score 5
Overclocked clock speed 4.68 GHz
Overclocked clock speed (Water) 4.71 GHz
PassMark (Overclocked) 5,531.8
Overclocked clock speed (Air) 4.68 GHz

power consumption

TDP 130W
Annual home energy cost 49.49 $/year
Annual commercial energy cost 138.93 $/year
Performance per watt 6.18 pt/W
Idle power consumption 82.6W
Peak power consumption 158.6W
Typical power consumption 139.6W

bus

Architecture DMI 2.0
Transfer rate 5,000 MT/s
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