
Radeon R8 M445DX

Radeon R9 M280X
Radeon R8 M445DX vs Radeon R9 M280X 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.
Radeon R8 M445DX vs Radeon R9 M280X 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
Radeon R8 M445DX vs Radeon R9 M280X: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
Radeon R8 M445DX
2016Why buy it
- ✅Draws 15W instead of 200W, a 185W reduction.
Trade-offs
- ❌Lower average FPS than Radeon R9 M280X across 50 tracked games in our benchmark data.
- ❌Less VRAM, with 512 MB vs 4 GB for high-resolution textures and newer games.
- ❌2016 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 3.3 G3D/$ (Unknown MSRP vs $250 MSRP).
Radeon R9 M280X
2013Why buy it
- ✅110.5% more average FPS across 50 tracked games in our benchmark data.
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 3.3 vs 0 G3D/$ ($250 MSRP vs Unknown MSRP).
- ✅700% more VRAM for high-resolution textures and newer games (4 GB vs 512 MB).
Trade-offs
- ❌2013 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌1233.3% higher power demand at 200W vs 15W.
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Radeon R8 M445DX vs Radeon R9 M280X Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Radeon R8 M445DX
The Radeon R8 M445DX is manufactured by AMD. It was released in May 15 2016. It features the GCN 3.0 architecture. The core clock ranges from 780 MHz to 920 MHz. It has 320 shading units. The thermal design power (TDP) is 15W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 797 points.

Radeon R9 M280X
The Radeon R9 M280X is manufactured by AMD. It was released in October 8 2013. It features the GCN 1.0 architecture. The boost clock speed is 1000 MHz. It has 2048 shading units. The thermal design power (TDP) is 200W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 814 points. Launch price was $299.
Graphics Performance
The Radeon R8 M445DX scores 797 and the Radeon R9 M280X reaches 814 in the G3D Mark benchmark — just a 2.1% difference, making them near-identical in rasterization performance. The Radeon R8 M445DX is built on GCN 3.0 while the Radeon R9 M280X uses GCN 1.0, both on a 28 nm process. Shader units: 320 (Radeon R8 M445DX) vs 2,048 (Radeon R9 M280X). Raw compute: 0.5888 TFLOPS (Radeon R8 M445DX) vs 4.096 TFLOPS (Radeon R9 M280X). Boost clocks: 920 MHz vs 1000 MHz.
| Feature | Radeon R8 M445DX | Radeon R9 M280X |
|---|---|---|
| G3D Mark Score | 797 | 814+2% |
| Architecture | GCN 3.0 | GCN 1.0 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 320 | 2048+540% |
| Compute (TFLOPS) | 0.5888 TFLOPS | 4.096 TFLOPS+596% |
| Boost Clock | 920 MHz | 1000 MHz+9% |
| ROPs | 8 | 32+300% |
| TMUs | 20 | 128+540% |
| L1 Cache | 80 KB | 512 KB+540% |
| L2 Cache | 128 KB | 768 KB+500% |
| Frame Generation | FSR upscaling | FSR upscaling |
Advanced Features (DLSS/FSR)
| Feature | Radeon R8 M445DX | Radeon R9 M280X |
|---|---|---|
| Upscaling Tech | FSR Upscaling / FSR 4 | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
The Radeon R8 M445DX has 512 MB of VRAM, while the Radeon R9 M280X carries 4 GB. Radeon R9 M280X gives you 700% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the Radeon R8 M445DX and 128-bit on the Radeon R9 M280X. L2 Cache: 128 KB (Radeon R8 M445DX) vs 768 KB (Radeon R9 M280X) — the Radeon R9 M280X has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon R8 M445DX | Radeon R9 M280X |
|---|---|---|
| VRAM Capacity | 0.5 GB | 4 GB+700% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 128 KB | 768 KB+500% |
Power & Dimensions
The Radeon R8 M445DX draws 15W versus the Radeon R9 M280X's 200W — a 172.1% difference. The Radeon R8 M445DX is more power-efficient. Recommended PSU: 350W (Radeon R8 M445DX) vs 350W (Radeon R9 M280X). Power connectors: PCIe-powered vs Mobile.
| Feature | Radeon R8 M445DX | Radeon R9 M280X |
|---|---|---|
| TDP | 15W-93% | 200W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | Mobile |
| Length | 1mm | — |
| Slots | 0 | — |
| Perf/Watt | 53.1+1195% | 4.1 |
Value Analysis
At launch, the Radeon R8 M445DX came in at $0, while the Radeon R9 M280X launched at $250. On MSRP, Radeon R8 M445DX was 100+% cheaper ($250 less). Performance per dollar on MSRP (G3D Mark / MSRP): Infinity (Radeon R8 M445DX) vs 3.3 (Radeon R9 M280X) — the Radeon R8 M445DX offers Infinity% better value. The newer card here is Radeon R8 M445DX (2016 vs 2013).
| Feature | Radeon R8 M445DX | Radeon R9 M280X |
|---|---|---|
| MSRP | $0-100% | $250 |
| Performance per Dollar | Infinity | 3.3 |
| Codename | Meso | Tahiti |
| Release | May 15 2016 | October 8 2013 |
| Ranking | #899 | #404 |
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