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| Intel Core i7 3820 vs 3770K |
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Released April, 2012
Intel Core i7 3770K
- 3.5 GHz
- Quad core
- Unlocked
Reasons to buy the 3770K
![]() | Has a built-in GPU Yes |
Cast your vote Do you agree or disagree with CPUBoss?
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Differences What are the advantages of each
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CPUBoss is not aware of any important advantages of the 3820 vs the 3770K. | |||||||
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Has a built-in GPU | Yes | vs | No | Somewhat common; A separate graphics adapter is not required |
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Benchmarks Real world tests of Core i7 3820 vs 3770K
CompuBench 1.5 (T-Rex) Data courtesy CompuBench
Core i7 3820
0.76 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
GeekBench 3 (Single core) Data courtesy Primate Labs
Core i7 3820
3,098
Core i7 3770K
3,304
GeekBench 3 (AES single core) Data courtesy Primate Labs
Core i7 3820
2,500,000 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
GeekBench (64-bit) Data courtesy Primate Labs
Core i7 3820
13,644
Core i7 3770K
14,866
PassMark Data courtesy Passmark
Core i7 3820
8,998
Core i7 3770K
9,544
PassMark (Single Core)
Core i7 3820
1,943
Core i7 3770K
2,084
Reviews Word on the street
Core i7 3820 | vs | 3770K | ||
![]() | 8.0 | 8.0 | ||
---|---|---|---|---|
![]() | 8.0 | 8.0 | ||
![]() | 9.7 | 9.4 | ||
Overall | 8.7 Out of 10 | 8.8 Out of 10 | ||
Specifications Full list of technical specs
summary | Core i7 3820 | vs | 3770K |
---|---|---|---|
Clock speed | 3.6 GHz | 3.5 GHz | |
Turbo clock speed | 3.8 GHz | 3.9 GHz | |
Cores | Quad core | Quad core | |
Socket type | |||
LGA 2011 | |||
LGA 1155 | |||
Is unlocked | Yes | Yes | |
features | |||
Has a NX bit | Yes | Yes | |
Supports trusted computing | No | No | |
Has virtualization support | Yes | Yes | |
Instruction set extensions | |||
SSE2 | |||
MMX | |||
SSE4 | |||
AVX | |||
SSE3 | |||
SSE | |||
SSE4.1 | |||
SSE4.2 | |||
Supplemental SSE3 | |||
AES | |||
Supports dynamic frequency scaling | Yes | Yes | |
integrated graphics | |||
GPU | None | GPU | |
Label | N/A | Intel® HD Graphics 4000 | |
Latest DirectX | N/A | 11.x | |
Number of displays supported | N/A | 3 | |
GPU clock speed | N/A | 650 MHz | |
Turbo clock speed | N/A | 1,150 MHz | |
3DMark06 | N/A | 5,339.9 | |
memory controller | |||
Memory controller | Built-in | Built-in | |
Memory type | |||
DDR3-1600 | |||
DDR3-1333 | |||
DDR3-1066 | |||
DDR3 | |||
Channels | Quad Channel | Dual Channel | |
Supports ECC | No | No | |
Maximum bandwidth | 51,200 MB/s | 25,600 MB/s | |
Maximum memory size | 65,771.52 MB | 32,768 MB |
details | Core i7 3820 | vs | 3770K |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 8 | 8 | |
L2 cache | 1 MB | 1 MB | |
L2 cache per core | 0.25 MB/core | 0.25 MB/core | |
L3 cache | 10 MB | 8 MB | |
L3 cache per core | 2.5 MB/core | 2 MB/core | |
Manufacture process | 32 nm | 22 nm | |
Transistor count | 1,270,000,000 | 1,400,000,000 | |
Max CPUs | 1 | 1 | |
Clock multiplier | 36 | 35 | |
Voltage range | 0.6 - 1.35V | 1.33 - 1.36V | |
Operating temperature | Unknown - 66.8°C | Unknown - 67.4°C | |
overclocking | |||
Overclock popularity | 142 | 332 | |
Overclock review score | 5 | 0.96 | |
Overclocked clock speed | 4.68 GHz | 4.69 GHz | |
Overclocked clock speed (Water) | 4.71 GHz | 4.8 GHz | |
PassMark (Overclocked) | 5,531.8 | 6,731.8 | |
Overclocked clock speed (Air) | 4.68 GHz | 4.69 GHz | |
power consumption | |||
TDP | 130W | 77W | |
Annual home energy cost | 49.49 $/year | 42.19 $/year | |
Annual commercial energy cost | 138.93 $/year | 112.39 $/year | |
Performance per watt | 6.18 pt/W | 4.55 pt/W | |
Idle power consumption | 82.6W | 75W | |
Peak power consumption | 158.6W | 128.3W | |
Typical power consumption | 139.6W | 114.97W | |
bus | |||
Architecture | DMI 2.0 | DMI | |
Number of links | 1 | 1 | |
Transfer rate | 5,000 MT/s | 5,000 MT/s |
Intel Core i7 3820 ![]() | Intel Core i7 3770K ![]() |
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