
GeForce 845M

Radeon R9 255
GeForce 845M vs Radeon R9 255 Performance Spectrum
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
GeForce 845M vs Radeon R9 255 FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
GeForce 845M vs Radeon R9 255: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce 845M
2015Why buy it
- ✅Draws 33W instead of 190W, a 157W reduction.
Trade-offs
- ❌Lower average FPS than Radeon R9 255 across 50 tracked games in our benchmark data.
- ❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
- ❌2015 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 10.8 G3D/$ (Unknown MSRP vs $139 MSRP).
Radeon R9 255
2014Why buy it
- ✅66.8% more average FPS across 50 tracked games in our benchmark data.
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 10.8 vs 0 G3D/$ ($139 MSRP vs Unknown MSRP).
- ✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
Trade-offs
- ❌2014 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌475.8% higher power demand at 190W vs 33W.
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GeForce 845M vs Radeon R9 255 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce 845M
The GeForce 845M is manufactured by NVIDIA. It was released in August 26 2015. It features the Maxwell architecture. The core clock ranges from 1071 MHz to 1176 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,487 points.

Radeon R9 255
The Radeon R9 255 is manufactured by AMD. It was released in September 2 2014. It features the GCN 3.0 architecture. The core clock speed is 918 MHz. It has 1792 shading units. The thermal design power (TDP) is 190W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,501 points. Launch price was $249.
Graphics Performance
The GeForce 845M scores 1,487 and the Radeon R9 255 reaches 1,501 in the G3D Mark benchmark — just a 0.9% difference, making them near-identical in rasterization performance. The GeForce 845M is built on Maxwell while the Radeon R9 255 uses GCN 3.0, both on a 28 nm process. Shader units: 384 (GeForce 845M) vs 1,792 (Radeon R9 255). Raw compute: 0.9032 TFLOPS (GeForce 845M) vs 3.29 TFLOPS (Radeon R9 255).
| Feature | GeForce 845M | Radeon R9 255 |
|---|---|---|
| G3D Mark Score | 1,487 | 1,501 |
| Architecture | Maxwell | GCN 3.0 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 1792+367% |
| Compute (TFLOPS) | 0.9032 TFLOPS | 3.29 TFLOPS+264% |
| ROPs | 16 | 32+100% |
| TMUs | 32 | 112+250% |
| L1 Cache | 192 KB | 448 KB+133% |
| L2 Cache | 1 MB+100% | 0.5 MB |
Advanced Features (DLSS/FSR)
The GeForce 845M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon R9 255 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce 845M | Radeon R9 255 |
|---|---|---|
| Upscaling Tech | Upscaling support | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce 845M has 512 MB of VRAM, while the Radeon R9 255 carries 2 GB. Radeon R9 255 gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce 845M and 128-bit on the Radeon R9 255. L2 Cache: 1 MB (GeForce 845M) vs 0.5 MB (Radeon R9 255) — the GeForce 845M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 845M | Radeon R9 255 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 2 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 1 MB+100% | 0.5 MB |
Power & Dimensions
The GeForce 845M draws 33W versus the Radeon R9 255's 190W — a 140.8% difference. The GeForce 845M is more power-efficient. Recommended PSU: 350W (GeForce 845M) vs 400W (Radeon R9 255). Power connectors: Legacy vs 1x 6-pin.
| Feature | GeForce 845M | Radeon R9 255 |
|---|---|---|
| TDP | 33W-83% | 190W |
| Recommended PSU | 350W-13% | 400W |
| Power Connector | Legacy | 1x 6-pin |
| Slots | 0 | — |
| Temp (Load) | 85°C | — |
| Perf/Watt | 45.1+471% | 7.9 |
Value Analysis
The newer card here is GeForce 845M (2015 vs 2014).
| Feature | GeForce 845M | Radeon R9 255 |
|---|---|---|
| MSRP | — | $139 |
| Codename | GM108 | Tonga |
| Release | August 26 2015 | September 2 2014 |
| Ranking | #768 | #365 |
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