FPSVersusRadeon 840M vs Radeon HD 6870
Performance score
Radeon HD 6870 is 9% faster than Radeon 840M by our estimate.
The score is our own estimate from the specs (core count, clock, architecture), not FPS from benchmarks. 100 = the fastest card 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.
GPU rendering (Blender)
Median of real test runs on users' computers. It does not show FPS in games. Data updated: 31.10.2026.
Overview
| Radeon 840M | Radeon HD 6870 | |
|---|---|---|
| Score (0–100) | 3.27 | 3.56 |
| Ranking position | 251 | 244 |
| Manufacturer | AMD | AMD |
| Type | Integrated | Desktop |
| Architecture | RDNA 3.5 | TeraScale |
Specifications
| Radeon 840M | Radeon HD 6870 | |
|---|---|---|
| Shader cores | 256 | 1120 |
| Boost clock | 2900 MHz | 900 MHz |
| FP32 TFLOPS (calculated) | 1.48 | 2.02 |
| Hardware ray tracing | yes | no |
Video memory
| Radeon 840M | Radeon HD 6870 | |
|---|---|---|
| VRAM | shared with RAM | 1 GB |
| Memory type | DDR5 / LPDDR5X | GDDR5 |
| Memory bus | no data | 256 bit |
| Memory bandwidth | no data | 134 GB/s |
Pros and cons
Radeon 840M
- has hardware ray tracing
Radeon HD 6870
- 9% higher overall score
Other comparisons
Visitor rating
Questions and comments
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