Do you struggle on deciding between getting the i7 8700 or the i7 8700k?
Now in my country, the i7 8700 + Cooler Master 212 is around $500 together; meanwhile, the i7 8700k + NH-D15S price is approximately $640.
Many people question – What are the perceivable differences between the non-K and K chip in terms of performance other than the extra GHz? Is it worth add additional $140 or not?
Intel Core i7-8700
The Intel Core i7-8700 is a high-end desktop processor with six cores based on the Coffee Lake architecture and was announced on September 2017. The processor clocks at between 3.2 and 4.6 GHz and can offer up to twelve threads simultaneously thanks to Hyper-Threading. According to Intel, the CPU is manufactured in an enhanced 14nm (14nm++) process. Compared to the imperceptibly higher clocked Core i7-8700K, the i7-8700 offers a lower TDP and no unlocked multiplier (no easy overclocking).
Performance
Due to the two extra cores, performance has improved by almost 50% compared to the previous quad-core Kaby Lake models. Single-core performance has not improved much. As a high-end model, the i7-8700 is suitable for the most demanding software and games.
Graphics
The combined Intel UHD Graphics 630 iGPU is supposed to offer greater performance as 50 MHz has raised its clock rate. The build is identical to that of the Intel HD Graphics 630. We do expect a performance enhancement, but as a low-end solution, it will probably only display popular games smoothly at decreased details – if at all.
Power Consumption
Intel designates the TDP with 65 watts. Therefore, well-dimensioned cooling systems should simply control to deal with the created heat. We expect improved efficiency due to more powerful performance.
Intel Core i7-8700K
The Intel Core i7-8700K is a high-end desktop processor with six cores based on the Coffee Lake architecture and was announced on September 2017. The processor clocks at between 3.7 and 4.7 GHz and can perform up to twelve threads simultaneously thanks to Hyper-Threading. According to Intel, the CPU is manufactured in an enhanced 14nm (14nm++) process. The i7-8700K is comparatively easy to overclock thanks to the unlocked multiplier.
Performance
Due to the two extra cores, performance has improved by almost 50% compared to the Core i7-7700K when all cores are in use. Single-core performance has not improved since its Kaby Lake predecessor. As a high-end model, the i7-8700K is suitable for the most demanding software and games.
Graphics
The combined Intel UHD Graphics 630 iGPU is supposed to offer more excellent performance as 50 MHz has increased its clock rate. The build is identical to that of the Intel HD Graphics 630. We do expect a performance enhancement, but as a low-end solution, it will probably only display current games smoothly at decreased details – if at all.
Power Consumption
Intel designates the TDP with 95 watts. Therefore, well-dimensioned cooling systems should easily handle to deal with the created heat. We expect improved efficiency due to more powerful performance.
| Intel Core i7-8700 @ 3.20GHz | Intel Core i7-8700K @ 3.70GHz | |
|---|---|---|
| Price | $299.99 | $349.99 |
| Socket Type | FCLGA1151 | FCLGA1151 |
| CPU Class | Desktop | Desktop |
| Clockspeed | 3.2 GHz | 3.7 GHz |
| Turbo Speed | Up to 4.6 GHz | Up to 4.7 GHz |
| # of Physical Cores | 6 (2 logical cores per physical) | 6 (2 logical cores per physical) |
| Max TDP | 65W | 95W |
| Yearly Running Cost | $11.86 | $17.34 |
| First Seen on Chart | Q4 2017 | Q4 2017 |
| # of Samples | 3363 | 7477 |
| Single Thread Rating | 2630 | 2701 |
| CPU Mark | 15159 | 15960 |
| Intel Core i7-8700 @ 3.20GHz | Intel Core i7-8700K @ 3.70GHz | |
|---|---|---|
| Max TDP | 65W | 95W |
| Power consumption per day (kWh) | 0.1 | 0.2 |
| Running cost per day | $0.033 | $0.048 |
| Power consumption per year (kWh) | 47.5 | 69.3 |
| Running cost per year | $11.86 | $17.34 |
