Intel Core i7-3770K

Intel 3770K

The Intel Core i7-3770K is the fastest LGA1155 processor for desktop PCs and is based on the Ivy Bridge architecture. Due to Hyperthreading, the four cores can handle up to eight threads in parallel, leading to better utilization of the CPU. Each core offers a base speed of 3.5 GHz, but can dynamically increase clock rates with Turbo Boost up to 3.7 GHz (for 4 active cores), 3.8 GHz (for 2 active cores) and 3.9 GHz (for 1 active core). Furthermore, the "K" series processors offers an unlocked multiplier for easy overclocking.

Ivy Bridge is an enhanced die shrink of the Sandy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm (versus 32nm Sandy Bridge CPUs) and are the first to introduce 3D transistors for increased energy efficiency when compared to similarly clocked Sandy Bridge processors. Other new features are integrated PCI Express 3.0 and  DDR3(L)-1600 support.

The performance of the Core i7-3770K is slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. Therefore, the Core i7-2700K is outperformed by about 10 percent. Compared to AMD's fastest desktop CPU (FX-8350), the Core i7-3770K is significantly faster.

The integrated Intel HD Graphics 4000 GPU offers 16 Execution Units (EUs) clocked at 650 MHz up to 1150 MHz with Turbo Boost. In recent games, the performance is only sufficient for low resolutions and details.

The total power consumption of the CPU, graphics and memory controller is specified by Intel at 77 watts (TDP).

SeriesIntel Core i7 (Desktop)
CodenameIvy Bridge
Clock Rate3500 - 3900 MHz
Level 2 Cache1 MB
Level 3 Cache8 MB
Number of Cores / Threads4 / 8
Max. Power Consumption (TDP = Thermal Design Power)77 Watt
Manufacturing Technology22 nm
Max. Temperature67.4 °C
FeaturesHD Graphics 4000 (650-1150 MHz), SSE 4.1/4.2, AVX, Trusted Execution, AES, Dual Channel Memory Controller DDR3-1600 (max 32GB)
GPUIntel HD Graphics 4000 (650 - 1150 MHz)
64 Bit64 Bit support
Starting Price$294 U.S.
Announcement Date04/08/2012
Product Link (external)Intel Core i7 (Desktop) 3770K


Cinebench R11.5 - CPU Multi 64Bit
7.7 Points (18%)
Cinebench R11.5 - CPU Single 64Bit
1.7 Points (83%)
Cinebench R10 - Rendering Single 32Bit
5536 Points (57%)
Cinebench R10 - Rendering Multiple CPUs 32Bit
22190 Points (34%)
Cinebench R10 - Rendering Multiple CPUs 64Bit
27536 Points (36%)
Cinebench R10 - Rendering Single CPUs 64Bit
6972 Points (67%)
wPrime 1.55 - 1024m *
190.6 seconds (1%)
wPrime 1.55 - 32m *
6.4 seconds (3%)
X264 HD Benchmark 4.0 - Pass 2
43.4 fps (24%)
X264 HD Benchmark 4.0 - Pass 1
172.3 fps (64%)
3DMark 06 - CPU
min: 7170     avg: 7308.5     median: 7229 (48%)     max: 7606 Points
3DMark Vantage - P CPU no PhysX 1280x1024
min: 26132     avg: 26497.7     median: 26269 (37%)     max: 27825 Points
3DMark 11 - Performance Physics 1280x720
min: 8042     avg: 9019.1     median: 9216 (47%)     max: 9294 points
3DMark - Ice Storm Standard Physics 1280x720
min: 44692     avg: 48571.2     median: 49145 (32%)     max: 49714 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
51296 Points (59%)
3DMark - Cloud Gate Standard Physics 1280x720
min: 7001     avg: 7175.8     median: 7184 (18%)     max: 7316 Points
3DMark - Fire Strike Physics 1920x1080
min: 9475     avg: 9809.6     median: 9882 (30%)     max: 9942 Points
Geekbench 2 - 32 Bit - Total Score
12435 Points (29%)
Sunspider - 0.9.1 Total Score *
120.9 ms (1%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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