Intel Core i9-9900T vs Intel Core i7-6700K
Intel Core i9-9900T
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The Intel Core i9-9900T is a high end power efficient desktop processor based on the Coffee Lake architecture. Compared to the similar named top model Core i9-9900K, the 9900T offers lower clock speeds (2.1 - 4.4 GHz versus 3.6 - 5 GHz) and a reduced TDP of 35 versus 95 Watt. It still offers all 8 cores and 16 threads and is intended for small chassis or laptops.
The performance is clearly behind the Core i9-9900K and more in the realm of the older 6-core Coffee Lake CPUs.
The integrated Intel UHD Graphics 630 graphics card is clocked at up to 1.2 GHz and offers no advantage compared to previous generations. As it is a very low end GPU, only some low demanding games like Hearthstone can be played with it (see GPU page for benchmarks).
Intel Core i7-6700K
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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.
| Model | Intel Core i9-9900T | Intel Core i7-6700K | ||||||||||||||||||||||||||||||||||||||||||||
| Codename | Coffee Lake-R | Skylake | ||||||||||||||||||||||||||||||||||||||||||||
| Series | Intel Coffee Lake | Intel Core i7 (Desktop) | ||||||||||||||||||||||||||||||||||||||||||||
| Series: Core i7 (Desktop) Skylake |
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| Clock | 2100 - 4400 MHz | 4000 - 4200 MHz | ||||||||||||||||||||||||||||||||||||||||||||
| L1 Cache | 512 KB | 256 KB | ||||||||||||||||||||||||||||||||||||||||||||
| L2 Cache | 2 MB | 1 MB | ||||||||||||||||||||||||||||||||||||||||||||
| L3 Cache | 16 MB | 8 MB | ||||||||||||||||||||||||||||||||||||||||||||
| Cores / Threads | 8 / 16 | 4 / 8 | ||||||||||||||||||||||||||||||||||||||||||||
| TDP | 35 Watt | 91 Watt | ||||||||||||||||||||||||||||||||||||||||||||
| Technology | 14++ nm | 14 nm | ||||||||||||||||||||||||||||||||||||||||||||
| Die Size | 178 mm2 | |||||||||||||||||||||||||||||||||||||||||||||
| max. Temp. | 100 °C | |||||||||||||||||||||||||||||||||||||||||||||
| Socket | FCLGA1151 | FCLGA1151 | ||||||||||||||||||||||||||||||||||||||||||||
| Features | Dual-Channel DDR4-2666 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro | DDR3(L)-1600/DDR4-2133 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro | ||||||||||||||||||||||||||||||||||||||||||||
| iGPU | Intel UHD Graphics 630 (350 - 1200 MHz) | Intel HD Graphics 530 (350 - 1150 MHz) | ||||||||||||||||||||||||||||||||||||||||||||
| Architecture | x86 | x86 | ||||||||||||||||||||||||||||||||||||||||||||
| $439 U.S. | $339 U.S. | |||||||||||||||||||||||||||||||||||||||||||||
| Announced | ||||||||||||||||||||||||||||||||||||||||||||||
| Manufacturer | ark.intel.com | ark.intel.com |
Benchmarks
Average Benchmarks Intel Core i9-9900T → 100% n=25
Average Benchmarks Intel Core i7-6700K → 153% n=25
- Average benchmark values for this graphics card* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation
