Performance comparison: which is faster?
AMD A10-7850K (AMD, 2014) and AMD FX-4300 (AMD, 2012) 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: A10-7850K is about 4% faster
The sockets differ (FM2+ / AM3+), 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 | A10-7850K | FX-4300 |
|---|---|---|
| Performance Score | 5,200 | 5,000 |
| Generation | A-Series | FX |
| Socket | FM2+ | AM3+ |
| Release Year | 2014 | 2012 |
| Type | Desktop | Desktop |
| Compatible GPU Example | Radeon RX 6500 XT | Intel Arc A380 6GB |
| If You Want To... | Recommended |
|---|---|
| Prioritize maximum speed for heavy work or a high-end GPU | A10-7850K |
| Upgrade while reusing the current motherboard | Choose the CPU matching your motherboard socket |
| Prioritize value and adequate performance | FX-4300 (the lower model is often sufficient) |
A10-7850K is about 4% higher by score (A10-7850K: 5200 points / FX-4300: 5000 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.
A10-7850K is A-Series, while FX-4300 is FX.The sockets differ (FM2+ / AM3+), so switching requires a motherboard replacement.
Using our CPU:GPU = 0.9:1 guideline, Radeon RX 6500 XT pairs well with A10-7850K and Intel Arc A380 6GB pairs well with FX-4300. If either GPU is too strong or too weak, one part holds the other back.
