Intel Core i7-4790 vs Intel Core i7-6700
Intel Core i7-4790
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The Intel Core i7-4790 is a high end quad-core desktop processor using the Haswell architecture. It clocks at 3.6 - 4 GHz and can run 8 threads at once thanks to HyperThreading. Compared to the similar named Core i7-4790K, the 4790 clocks a bit lower and offers no open multiplier for overclocking. The TDP is rated at 84 Watt and therefore suited for Desktop-PCs and large laptops.
Intel Core i7-6700
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The Intel Core i7-6700 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 3.4 up to 4.0 GHz (2 cores: 3.9 GHz, 4 cores: 3.7 GHz) and can execute up to 8 threads simultaneously thanks to Hyperthreading. Contrary to the Core i7-6700K, the i7-6700 does not have a free multiplier and can hardly be overclocked.
Architecture
Intel uses Skylake to replace both Broadwell and Haswell and therefore once again uses one core design for all TDP classes. Several improvements of the Skylake architecture include bigger Out-to-Order-Buffer, optimizations for pre-fetching as well as bigger gains by Hyperthreading. However, the changes are small for a "Tock" – a new micro architecture – in general, so the per-MHz performance is only between 5-10 % (compared to Haswell) or less than 5 % higher (compared to Broadwell), respectively.
Performance
Even though the Core i7-6700 has a slightly lower clock than the old i7-4790 (3.6 GHz - 4.0 GHz), the performance is slightly better compared to the Haswell predecessor. Another 7 % faster is the top model i7-6700K. 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
Intel specifies the TDP with 65 Watts.
| Model | Intel Core i7-4790 | Intel Core i7-6700 | ||||||||||||||||||||||||||||||||
| Codename | Haswell | Skylake | ||||||||||||||||||||||||||||||||
| Series | Intel Core i7 (Desktop) | Intel Core i7 (Desktop) | ||||||||||||||||||||||||||||||||
| Series: Core i7 (Desktop) Skylake |
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| Clock | 3600 - 4000 MHz | 3400 - 4000 MHz | ||||||||||||||||||||||||||||||||
| L1 Cache | 256 KB | 256 KB | ||||||||||||||||||||||||||||||||
| L2 Cache | 1 MB | 1 MB | ||||||||||||||||||||||||||||||||
| L3 Cache | 8 MB | 8 MB | ||||||||||||||||||||||||||||||||
| Cores / Threads | 4 / 8 | 4 / 8 | ||||||||||||||||||||||||||||||||
| TDP | 84 Watt | 65 Watt | ||||||||||||||||||||||||||||||||
| Transistors | 1400 Million | |||||||||||||||||||||||||||||||||
| Technology | 22 nm | 14 nm | ||||||||||||||||||||||||||||||||
| Die Size | 177 mm2 | |||||||||||||||||||||||||||||||||
| Socket | FCLGA1150 | FCLGA1151 | ||||||||||||||||||||||||||||||||
| Features | HD Graphics 4600 (350 - 1200 MHz), DDR3-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, vPro | DDR3(L)-1600/DDR4-2133 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro | ||||||||||||||||||||||||||||||||
| iGPU | Intel HD Graphics 4600 (350 - 1200 MHz) | Intel HD Graphics 530 (350 - 1150 MHz) | ||||||||||||||||||||||||||||||||
| Architecture | x86 | x86 | ||||||||||||||||||||||||||||||||
| $303 U.S. | $303 U.S. | |||||||||||||||||||||||||||||||||
| Announced | ||||||||||||||||||||||||||||||||||
| Manufacturer | ark.intel.com | ark.intel.com |
Benchmarks
Average Benchmarks Intel Core i7-4790 → 100% n=19
Average Benchmarks Intel Core i7-6700 → 103% n=19
- Average benchmark values for this graphics card* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation
