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 |
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Differences What are the advantages of each
| |||||||
| 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
GeekBench 3 (Multi-core) Data courtesy Primate Labs
GeekBench 3 (Single core) Data courtesy Primate Labs
GeekBench 3 (AES single core) Data courtesy Primate Labs
GeekBench (32-bit) Data courtesy Primate Labs
GeekBench (64-bit) Data courtesy Primate Labs
PassMark Data courtesy Passmark
PassMark (Single Core)
Reviews Word on the street
| Core i7 3820 | vs | 3770K | ||
 | ||||
|---|---|---|---|---|
 | ||||
 | ||||
Overall | Out of 10 | 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  Report a correction |  Intel Core i7 3770K Report a correction |
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