Intel Core i7-6700K vs Intel Core i7-6700T

Intel Core i7-6700K

► remove Intel 6700K

The Intel Core i7-6700K is a high-end quad-core desktop processor based on the Skylake architecture, which was announced in August 2015. The CPU, which is manufactured in a 14 nm process, runs at 4.0 up to 4.2 GHz (2 cores: 4.0 GHz, 3 cores: 4.0 GHz, 4 cores: 4.0 GHz) and can execute up to 8 threads simultaneously thanks to Hyperthreading. Being a so called "K"-model, the Core i7-6700K has a free multiplier and can be easily overclocked. 

Performance

Even though the Core i7-6700K has a slightly lower clock than the old i7-4790K (4.0 GHz - 4.4 GHz), the performance is slightly better compared to the Haswell predecessor. Depending on the application, the per-MHz performance was increased by roughly 5-10 %. Even the most demanding applications and games are no problem for the high-end CPU.

Graphics

Graphics are handled by the integrated Intel HD Graphics 530 with 24 EUs (Execution Units), which is clocked at 350 - 1150 MHz. Compared to the HD Graphics 4600 (Haswell, 20 EUs), the performance is increased by around 25 percent. The overall GPU performance is still low-end, so modern games can, if at all, only be played smoothly with low settings. 

Power Consumption

The TDP was slightly raised from 88 to 91 Watts compared to the predecessor.

Intel Core i7-6700T

► remove Intel 6700T

The Intel Core i7-6700T is a quad-core processor based on the Skylake architecture, that has been launched in September 2015. It is generally intended for desktops but due to the relatively low TDP of 35 Watt is is also used in some laptops. In addition to four CPU cores with Hyper-Threading clocked at 2.8 - 3.6 GHz, the chip also integrates an HD Graphics 530 GPU and a dual-channel DDR4-2133/DDR3L-1600 memory controller. The CPU is manufactured using a 14 nm process with FinFET transistors.

Architecture

Skylake replaces both Haswell and Broadwell and brings the same microarchitecture in every TDP class from 4.5 to 45 W. The extensive improvements of the Skylake design include increased out-of-order buffers, optimized prefetching and branch prediction as well as additional performance gains through Hyper-Threading. Overall, however, performance per clock has been increased by only 5 to 10 percent (compared to Haswell) respectively under 5 percent (compard to Broadwell), which is quite modest for a new architecture ("Tock").

Performance

According to the specified clock rates and the improved architecture, the Core i7-6700T performs roughly on par with the former, somewhat higher clocked Intel Core i7-3770K (Ivy Bridge). Therefore, the CPU is also well suited for demanding applications.

Graphics

The integrated graphics unit called HD Graphics 530 represents the "GT2" version of the Skylake GPU (Intel Gen. 9). The 24 Execution Units, also called EUs, are clocked at 350 - 1100 MHz and offer a performance about 20 percent above the old HD Graphics 4600. Games of 2015 can thus be played smoothly in low or medium settings. For more information about performance and features, check our page for HD Graphics 530.

Power Consumption

Specified at a TDP of 35 W (including CPU, GPU and memory controller), the CPU is best suited for bigger notebooks 15-inches in size and above or small desktops.

Intel Core i7-6700KIntel Core i7-6700T
Intel Core i7 (Desktop)Intel Core i7 (Desktop)
SkylakeSkylake
: Core i7 (Desktop) Skylake
» Intel Core i7-6700K4000 - 4200 MHz4 / 88 MB
Intel Core i7-6700 compare3400 - 4000 MHz4 / 88 MB
Intel Core i7-6700T2800 - 3600 MHz4 / 86 MB
Intel Core i7-6700K4000 - 4200 MHz4 / 88 MB
Intel Core i7-6700 compare3400 - 4000 MHz4 / 88 MB
» Intel Core i7-6700T2800 - 3600 MHz4 / 86 MB
4000 - 4200 MHz2800 - 3600 MHz
256 KB256 KB
1 MB1 MB
8 MB6 MB
4 / 84 / 8
91 35
14 14
FCLGA1151FCLGA1151
DDR3(L)-1600/DDR4-2133 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vProDual-Channel DDR3L-1600/DDR4-2133 Memory Controller, AVX, AVX2, Quick Sync, Virtualization, AES-NI
iGPUIntel HD Graphics 530 (350 - 1150 MHz)Intel HD Graphics 530 (350 - 1100 MHz)
$339 U.S.$303 U.S.
Intel Core i7 (Desktop) 6700KIntel Core i7 (Desktop) 6700T
122 mm2
66 °C

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 865     avg: 881     median: 880 (20%)     max: 910 Points
min: 667     avg: 668     median: 668 (15%)     max: 669 Points
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 160     avg: 174     median: 177.5 (77%)     max: 182 Points
153 Points (67%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 8.55     avg: 9.6     median: 9.7 (22%)     max: 10.2 Points
7.3 Points (17%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 1.72     avg: 2     median: 2 (77%)     max: 2.16 Points
1.7 Points (68%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 6434     avg: 6980     median: 6531 (67%)     max: 8845
5605 (58%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 19705     avg: 24305     median: 25817 (43%)     max: 26150
20201 (34%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 33740     avg: 34944     median: 34593 (40%)     max: 36500 Points
min: 33740     avg: 34944.3     median: 34593 (40%)     max: 36500 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 8600     avg: 8758     median: 8624 (76%)     max: 9050 Points
min: 8600     avg: 8758     median: 8624 (76%)     max: 9050 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 178.009     avg: 225     median: 205.9 (2%)     max: 275.013 s
308 s (4%)
wPrime 2.10 - wPrime 2.0 32m *
min: 5.726     avg: 7.2     median: 6.7 (1%)     max: 8.94 s
9.9 s (2%)
WinRAR - WinRAR 4.0
5877 (60%)
3829 (39%)
X264 HD Benchmark 4.0 - x264 Pass 2
min: 52.48     avg: 54.3     median: 54.6 (32%)     max: 55.25 fps
41.9 fps (25%)
X264 HD Benchmark 4.0 - x264 Pass 1
min: 194.2     avg: 205     median: 204.8 (71%)     max: 210.2 fps
165 fps (57%)
TrueCrypt - TrueCrypt Serpent
min: 0.203     avg: 0.4     median: 0.5 (0%)     max: 0.507 GB/s
0.4 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
min: 0.324     avg: 0.7     median: 0.7 (1%)     max: 0.848 GB/s
0.7 GB/s (1%)
TrueCrypt - TrueCrypt AES
min: 1.7     avg: 3.8     median: 4.4 (0%)     max: 4.9 GB/s
4 GB/s (0%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 8973     avg: 9037     median: 9037 (60%)     max: 9101 Points
7253 Points (49%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 8.787     avg: 9     median: 9 (2%)     max: 9.392 s
10 s (2%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 19.705     avg: 20.3     median: 20.3 (1%)     max: 20.83 s
22 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 463.766     avg: 479     median: 479.7 (2%)     max: 498.33 s
562 s (2%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 31997     avg: 32843     median: 32153 (45%)     max: 34379 Points
min: 31997     avg: 32843     median: 32153 (45%)     max: 34379 Points
3DMark 11 - 3DM11 Performance Physics
min: 10341     avg: 11161     median: 11228 (51%)     max: 11761 Points
min: 10341     avg: 11161.4     median: 11228 (51%)     max: 11761 Points
3DMark - 3DMark Ice Storm Physics
min: 59904     avg: 61163     median: 61287.5 (39%)     max: 62149 Points
47936 Points (31%)
3DMark - 3DMark Ice Storm Extreme Physics
min: 59247     avg: 60685     median: 61091 (73%)     max: 62096 Points
min: 59247     avg: 60684.6     median: 61091 (73%)     max: 62096 Points
3DMark - 3DMark Ice Storm Unlimited Physics
min: 60945     avg: 61859     median: 62114 (72%)     max: 62262 Points
min: 60945     avg: 61858.8     median: 62114 (72%)     max: 62262 Points
3DMark - 3DMark Cloud Gate Physics
min: 8328     avg: 9165     median: 9272 (23%)     max: 9702 Points
7100 Points (18%)
3DMark - 3DMark Fire Strike Standard Physics
min: 12430     avg: 12822     median: 12870.5 (40%)     max: 13182 Points
10190 Points (32%)
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
16365 (29%)
13223 (23%)
Geekbench 3 - Geekbench 3 32 Bit Single-Core
4225 (87%)
3649 (75%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
min: 17030     avg: 17122     median: 17122 (27%)     max: 17214
13917 (22%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
min: 4436     avg: 4598     median: 4598 (94%)     max: 4760
3831 (78%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 795.2     avg: 800     median: 800 (1%)     max: 804.8 ms
min: 795.2     avg: 800     median: 800 (1%)     max: 804.8 ms
Sunspider - Sunspider 1.0 Total Score *
min: 76.8     avg: 119     median: 119.5 (1%)     max: 162.1 ms
min: 76.8     avg: 119.5     median: 119.5 (1%)     max: 162.1 ms
Octane V2 - Octane V2 Total Score
min: 37135     avg: 40412     median: 40411.5 (68%)     max: 43688 Points
min: 37135     avg: 40411.5     median: 40411.5 (68%)     max: 43688 Points

Average Benchmarks Intel Core i7-6700K → 100% n=34

Average Benchmarks Intel Core i7-6700T → 89% n=34

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)