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Intel Core i7-6700K vs Intel Core i5-2500k

Intel Core i7-6700K

The Intel Core i7-6700K operates with 4 cores and 8 CPU threads. It run at 4.20 GHz base 4.00 GHz all cores while the TDP is set at 91 W.The processor is attached to the LGA 1151 CPU socket. This version includes 8.00 MB of L3 cache on one chip, supports 2 memory channels to support RAM and features 3.0 PCIe Gen 16 lanes. Tjunction keeps below -- degrees C. In particular, Skylake S Architecture is enhanced with 14 nm technology and supports VT-x, VT-x EPT, VT-d. The product was launched on Q3/2015

Intel Core i7-6700K

The Intel Core i5-2500k operates with 4 cores and 8 CPU threads. It run at 3.70 GHz base 3.70 GHz all cores while the TDP is set at 95 W.The processor is attached to the LGA 1155 CPU socket. This version includes 6.00 MB of L3 cache on one chip, supports 2 memory channels to support RAM and features 2.0 PCIe Gen 16 lanes. Tjunction keeps below -- degrees C. In particular, Sandy Bridge S Architecture is enhanced with 32 nm technology and supports VT-x, VT-x EPT. The product was launched on Q1/2011


Compare Detail

4.00 GHz Frequency 3.30 GHz
4 Cores 4
4.20 GHz Turbo (1 Core) 3.70 GHz
4.00 GHz Turbo (All Cores) 3.70 GHz
check Yes Hyperthreading No
check Yes Overclocking Yes check
normal Core Architecture normal
Intel HD Graphics 530 GPU Intel HD Graphics 3000
1.15 GHz GPU (Turbo) 1.10 GHz
14 nm Technology 32 nm
1.15 GHz GPU (Turbo) 1.10 GHz
12 DirectX Version 10.1
3 Max. displays 2
Memory
2 Memory channels 2
Max memory
uncheck No ECC No uncheck
-- L2 Cache --
8.00 MB L3 Cache 6.00 MB
3.0 PCIe version 2.0
16 PCIe lanes 16
14 nm Technology 32 nm
LGA 1151 Socket LGA 1155
91 W TDP 95 W
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
Q3/2015 Release date Q1/2011

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

Intel Core i7-6700K 1,132 (68%)
68% Complete
42% Complete

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

Intel Core i7-6700K 5,641 (8%)
8% Complete
Intel Core i5-2500k 2,451 (3%)
3% Complete

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

52% Complete
32% Complete

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

Intel Core i7-6700K 2,060 (8%)
8% Complete
4% Complete

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

65% Complete
46% Complete

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

8% Complete
4% Complete

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

Intel Core i7-6700K 1,159 (61%)
61% Complete
43% Complete

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

Intel Core i7-6700K 4,462 (12%)
12% Complete
Intel Core i5-2500k 2,680 (7%)
7% Complete

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.

8% Complete
4% Complete

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.

Intel Core i7-6700K 369.33 (18%)
18% Complete
Intel Core i5-2500k 778.75 (38%)
38% Complete

Geekbench 3, 64bit (Single-Core)

Geekbench 3 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

Intel Core i7-6700K 4,765 (69%)
69% Complete
Intel Core i5-2500k 3,164 (46%)
46% Complete

Geekbench 3, 64bit (Multi-Core)

Geekbench 3 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

Intel Core i7-6700K 17,031 (18%)
18% Complete
Intel Core i5-2500k 9,973 (10%)
10% Complete

Cinebench R11.5, 64bit (Single-Core)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

Intel Core i7-6700K 2.29 (84%)
84% Complete
Intel Core i5-2500k 1.61 (59%)
59% Complete

Cinebench R11.5, 64bit (Multi-Core)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

Intel Core i7-6700K 9.95 (18%)
18% Complete
Intel Core i5-2500k 5.45 (10%)
10% Complete

Cinebench R11.5, 64bit (iGPU, OpenGL)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The iGPU test uses the CPU internal graphic unit to execute OpenGL commands.

Intel Core i7-6700K 41.48 (67%)
67% Complete
Intel Core i5-2500k 22.45 (36%)
36% Complete

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-Comparison. However the majority of CPUs have not been tested and the results have been estimated by a CPU-Comparison’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.

Intel Core i7-6700K 11,111 (13%)
13% Complete
Intel Core i5-2500k 6,406 (7%)
7% Complete
Electric Usage Estimate

Electric Usage Estimate

Electric Usage Estimate

Electric Usage Estimate

Intel Core i7-6700K Intel Core i5-2500k
91 W Max TDP 95 W
NA Power consumption per day (kWh) NA
NA Running cost per day NA
NA Power consumption per year (kWh) NA
NA Running cost per year NA

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