Performance comparison: which is faster?
AMD FX-4300 (AMD, 2012) and AMD A8-7670K (AMD, 2015) are compared here. Compare not only scores, but also whether the motherboard can be reused and which GPU class is balanced with each CPU.
Overall performance: FX-4300 is about 11.1% faster
The sockets differ (AM3+ / FM2+), so switching requires a motherboard replacement. For games, performance balance with the GPU (guideline CPU:GPU = 0.9:1) matters more than CPU speed alone.
Relative performance score (higher is faster). Actual speed varies by workload, cooling, and memory configuration.
| Item | FX-4300 | A8-7670K |
|---|---|---|
| Performance Score | 5,000 | 4,500 |
| Generation | FX | A-Series |
| Socket | AM3+ | FM2+ |
| Release Year | 2012 | 2015 |
| Type | Desktop | Desktop |
| Compatible GPU Example | Intel Arc A380 6GB | Radeon RX 6400 |
| If You Want To... | Recommended |
|---|---|
| Prioritize maximum speed for heavy work or a high-end GPU | FX-4300 |
| Upgrade while reusing the current motherboard | Choose the CPU matching your motherboard socket |
| Prioritize value and adequate performance | A8-7670K (the lower model is often sufficient) |
FX-4300 is about 11.1% higher by score (FX-4300: 5000 points / A8-7670K: 4500 points). For gaming, the GPU tier usually matters more than a few percent of CPU difference. For CPU-heavy work such as video editing and streaming, choose the faster CPU.
FX-4300 is FX, while A8-7670K is A-Series.The sockets differ (AM3+ / FM2+), so switching requires a motherboard replacement.
Using our CPU:GPU = 0.9:1 guideline, Intel Arc A380 6GB pairs well with FX-4300 and Radeon RX 6400 pairs well with A8-7670K. If either GPU is too strong or too weak, one part holds the other back.
