FPSVersusFX-4300 vs FX-8120
Performance score
By our estimate, FX-8120 beats FX-4300 by 15%.
Both CPUs use the same socket (AM3+), so you can swap one for the other on the same board (check BIOS support).
The score is our own estimate from the specs (cores, threads, clocks, architecture generation), not a benchmark run. 100 = the fastest CPU in our database.
Real tests
What the test measures
Blender is a popular free 3D graphics program. The test makes the device render three ready-made 3D scenes (light, shadows, reflections) and counts how many render passes it finishes per minute. The higher the number, the faster the device handles heavy work: 3D, video editing, photo processing. On a CPU the test loads all cores at once, so it shows the chip's full power; on a graphics card it shows its compute strength.
Median of real test runs on users' computers. It does not show FPS in games. Data updated: 31.10.2026.
Overview
| FX-4300 | FX-8120 | |
|---|---|---|
| Score (0–100) | 9.35 | 10.77 |
| Ranking position | 520 | 512 |
| Power efficiency (0–100) | 5.14 | 4.5 |
| Type | Desktop | Desktop |
| Manufacturer | AMD | AMD |
| Architecture | Piledriver (Vishera) | Bulldozer (Zambezi) |
| Release date | 2012-10-23 | 2011-10-12 |
Specifications
| FX-4300 | FX-8120 | |
|---|---|---|
| Cores | 4 | 8 |
| Threads | 4 | 8 |
| Base clock | 3.8 GHz | 3.1 GHz |
| Boost clock | 4 GHz | 4 GHz |
| L2 cache | 4 MB | 8 MB |
| L3 cache | 4 MB | 8 MB |
| Process node | 32 nm | 32 nm |
| Unlocked multiplier | yes | yes |
| Integrated graphics | no | no |
| NPU (AI accelerator) | no | no |
Compatibility
| FX-4300 | FX-8120 | |
|---|---|---|
| Socket | AM3+ | AM3+ |
| TDP | 95 W | 125 W |
Memory and PCI Express
| FX-4300 | FX-8120 | |
|---|---|---|
| Memory type | DDR3-1866 | no data |
| Memory channels | 2 | 2 |
Pros and cons
FX-4300
- 17% faster single core
- lower TDP: 95 W vs 125 W
- newer: released in 2012
FX-8120
- 15% higher overall score
- more cores: 8 vs 4
- more threads: 8 vs 4
- bigger L3 cache: 8 MB vs 4 MB
Other comparisons
Visitor rating
Questions and comments
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