| Intel Core i7 3770K vs 3770 |
Intel Core i7 3770K
- 3.5 GHz
- Quad core
- Unlocked
Reasons to buy the Intel Core i7 3770K
![]() | Is unlocked Yes |
Intel Core i7 3770
- 3.4 GHz
- Quad core
Reasons to buy the 3770
![]() | Supports trusted computing Yes |
A power user is one who loves tweaking settings in order to get the most out of his machine, thus it's important for him to have a CPU that's capable of overclocking. But does overclocking really offer better performance at a significant margin? For this matchup, we'll compare two processors, one overclockable, one stock: the Intel Core i7 3770K versus the Intel Core i7 3770.
Both are quite similar: they’re Quad Core processors with 8 threads, 8 MB cache and decent HD 4000 integrated graphics. They can turbo boost up to 3.9 GHz and draw power at 77W TDP, which is expected from a processor with this type of performance.
They have many differences, however: the 3770K has a higher clock speed of 3.5 GHz, whereas the 3770 only has 3.4 GHz. Most importantly, the K series is blessed with an unlocked multiplier, which can easily overclock up to 4.7 GHz on air alone, thus squeezing every last bit of performance out of the processor. Let’s see if our test results support our claims.
Benchmarks show the 3770K’s obvious advantage in the PassMark overclocked test, where it scored 118% better than the 3770. In other tests however, the results were not as dominant: only 3-5% gains were seen in the 3DMark11, PassMark single core and Geekbench tests. This shows that if not for the overclocking, these chips are essentially similar (except for the 3770K’s added 100 MHz clock speed).
In conclusion, the Intel Core i7 3770 is still a solid performer that can duke it out at stock speeds. But as far as power users are concerned, overclocking the Intel Core i7 3770K is an exhilarating trip to the fast lane, and is worth every penny. Just make sure to keep your power supply and temperatures in check, to ensure a stable running system.
Cast your vote Do you agree or disagree with CPUBoss?
Differences What are the advantages of each
| |||||||
Is unlocked | Yes | vs | No | Somewhat common; An unlocked multiplier allows for easier overclocking | |||
---|---|---|---|---|---|---|---|
| |||||||
Supports trusted computing | Yes | vs | No | Somewhat common; Allows for safer, more reliable computing |
Benchmarks Real world tests of Core i7 3770K vs 3770
CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench
CompuBench 1.5 (T-Rex) Data courtesy CompuBench
PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark
Sky Diver Data courtesy FutureMark
Cloud Gate Data courtesy FutureMark
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
Specifications Full list of technical specs
summary | Core i7 3770K | vs | 3770 |
---|---|---|---|
Clock speed | 3.5 GHz | 3.4 GHz | |
Turbo clock speed | 3.9 GHz | 3.9 GHz | |
Cores | Quad core | Quad core | |
Socket type | |||
LGA 1155 | |||
Is unlocked | Yes | No | |
features | |||
Has a NX bit | Yes | Yes | |
Supports trusted computing | No | Yes | |
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 | GPU | GPU | |
Label | Intel® HD Graphics 4000 | Intel® HD Graphics 4000 | |
Latest DirectX | 11.x | 11.x | |
Number of displays supported | 3 | 3 | |
GPU clock speed | 650 MHz | 650 MHz | |
Turbo clock speed | 1,150 MHz | 1,150 MHz | |
3DMark06 | 5,339.9 | 5,339.9 | |
bus | |||
Architecture | DMI | DMI | |
Number of links | 1 | 1 | |
Transfer rate | 5,000 MT/s | 5,000 MT/s |
details | Core i7 3770K | vs | 3770 |
---|---|---|---|
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 | 8 MB | 8 MB | |
L3 cache per core | 2 MB/core | 2 MB/core | |
Manufacture process | 22 nm | 22 nm | |
Transistor count | 1,400,000,000 | 1,300,000,000 | |
Max CPUs | 1 | 1 | |
Clock multiplier | 35 | 34 | |
Operating temperature | Unknown - 67.4°C | Unknown - 67.4°C | |
overclocking | |||
Overclock popularity | 332 | 8 | |
Overclock review score | 0.96 | 0.9 | |
Overclocked clock speed | 4.69 GHz | 4.03 GHz | |
Overclocked clock speed (Water) | 4.8 GHz | 4.32 GHz | |
PassMark (Overclocked) | 6,731.8 | 3,085.5 | |
Overclocked clock speed (Air) | 4.69 GHz | 4.03 GHz | |
power consumption | |||
TDP | 77W | 77W | |
Annual home energy cost | 42.19 $/year | 18.55 $/year | |
Annual commercial energy cost | 112.39 $/year | 67.45 $/year | |
Performance per watt | 4.55 pt/W | 7.25 pt/W | |
Typical power consumption | 114.97W | 62.56W | |
memory controller | |||
Memory controller | Built-in | Built-in | |
Memory type | |||
DDR3-1600 | |||
DDR3-1333 | |||
DDR3 | |||
Channels | Dual Channel | Dual Channel | |
Supports ECC | No | No | |
Maximum bandwidth | 25,600 MB/s | 25,600 MB/s | |
Maximum memory size | 32,768 MB | 32,768 MB |
Intel Core i7 3770K ![]() | Intel Core i7 3770 ![]() |
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