The Ryzen 3 2300X is about 4% faster than the Core i5-6600K in our estimate.
The Ryzen 3 2300X is about 4% faster than the Core i5-6600K in our estimate.
| Ryzen 3 2300X | Core i5-6600K | |
|---|---|---|
| Gaming index | 25 | 24 |
| Cores / threads | 4 / 4 | 4 / 4 |
| Max boost | 4 GHz | 3.9 GHz |
| Power (TDP) | 65 W | 91 W |
| Socket | AM4 | LGA1151 |
| Release year | 2018 | 2015 |
| Launch price | n/a | $243 |
On our gaming index the Ryzen 3 2300X scores 25 and the Core i5-6600K scores 24, about 4% faster for gaming. That gap is small and mostly shows up at 1080p with a very fast graphics card.
The Ryzen 3 2300X has 4 cores and 4 threads, and the Core i5-6600K has 4 cores and 4 threads. Core counts are the same, so cache size and clock speed decide the difference. Boost clocks are 4 GHz and 3.9 GHz.
The Ryzen 3 2300X uses the AM4 socket and the Core i5-6600K uses LGA1151, so they need different motherboards, and often different memory. When you compare prices, count the board as well as the chip.
Rated power is 65 W for the first and 91 W for the second. That is close enough that cooling needs will be similar.
We do not have launch prices for both chips, so we cannot compare value.
At 1080p the Ryzen 3 2300X can feed a card up to the GeForce RTX 5050 Laptop before it holds the card back by more than 10 percent. The Core i5-6600K reaches the GeForce RTX 4050 Laptop. Both chips are in the same range for graphics card pairing.
Choose the Ryzen 3 2300X if you want the faster gaming chip and the same or more cores. Choose the Core i5-6600K if you would rather spend the difference on a graphics card, which does more for frame rates in most games.
The Ryzen 3 2300X is about 4% faster than the Core i5-6600K in our estimate.
If your graphics card is already the limit in your games, a faster processor adds little. Use the bottleneck calculator to check your own pairing.
Updated October 3, 2026