
GeForce 945M

Radeon HD 5870
GeForce 945M vs Radeon HD 5870 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 945M vs Radeon HD 5870 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 945M vs Radeon HD 5870: 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 945M
2015Why buy it
- β Draws 75W instead of 188W, a 113W reduction.
- β More future proof: Maxwell (2014β2017) on 28nm with a newer platform for upcoming games.
Trade-offs
- βLower average FPS than Radeon HD 5870 across 50 tracked games in our benchmark data.
- βLess VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
- β2015 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- βLower G3D Mark per dollar, at 0 vs 5.5 G3D/$ (Unknown MSRP vs $399 MSRP).
Radeon HD 5870
2009Why buy it
- β 46.0% more average FPS across 50 tracked games in our benchmark data.
- β Delivers 100+% more G3D Mark for each dollar spent, at 5.5 vs 0 G3D/$ ($399 MSRP vs Unknown MSRP).
- β 300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
Trade-offs
- β2009 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- β150.7% higher power demand at 188W vs 75W.
Quick Answers
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GeForce 945M vs Radeon HD 5870 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce 945M
The GeForce 945M is manufactured by NVIDIA. It was released in October 27 2015. It features the Maxwell architecture. The core clock ranges from 928 MHz to 1020 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,109 points.

Radeon HD 5870
The Radeon HD 5870 is manufactured by AMD. It was released in September 23 2009. It features the TeraScale 2 architecture. The core clock speed is 850 MHz. It has 1600 shading units. The thermal design power (TDP) is 188W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 2,180 points. Launch price was $399.
Graphics Performance
The GeForce 945M scores 2,109 and the Radeon HD 5870 reaches 2,180 in the G3D Mark benchmark β just a 3.4% difference, making them near-identical in rasterization performance. The GeForce 945M is built on Maxwell while the Radeon HD 5870 uses TeraScale 2, both on 28 nm vs 40 nm. Shader units: 640 (GeForce 945M) vs 1,600 (Radeon HD 5870). Raw compute: 1.306 TFLOPS (GeForce 945M) vs 2.72 TFLOPS (Radeon HD 5870).
| Feature | GeForce 945M | Radeon HD 5870 |
|---|---|---|
| G3D Mark Score | 2,109 | 2,180+3% |
| Architecture | Maxwell | TeraScale 2 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 640 | 1600+150% |
| Compute (TFLOPS) | 1.306 TFLOPS | 2.72 TFLOPS+108% |
| ROPs | 16 | 32+100% |
| TMUs | 40 | 80+100% |
| L1 Cache | 320 KB+100% | 160 KB |
| L2 Cache | 2 MB+300% | 0.5 MB |
Advanced Features (DLSS/FSR)
The GeForce 945M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon HD 5870 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce 945M | Radeon HD 5870 |
|---|---|---|
| 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 945M has 512 MB of VRAM, while the Radeon HD 5870 carries 2 GB. Radeon HD 5870 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 945M and 128-bit on the Radeon HD 5870. L2 Cache: 2 MB (GeForce 945M) vs 0.5 MB (Radeon HD 5870) β the GeForce 945M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 945M | Radeon HD 5870 |
|---|---|---|
| VRAM Capacity | 0.5 GB | 2 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | 80 GB/s | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 2 MB+300% | 0.5 MB |
Display & API Support
DirectX support: 12 (11_0) (GeForce 945M) vs 11.2 (Radeon HD 5870). Maximum simultaneous displays: 2 vs 3.
| Feature | GeForce 945M | Radeon HD 5870 |
|---|---|---|
| DirectX | 12 (11_0)+7% | 11.2 |
| Max Displays | 2 | 3+50% |
Media & Encoding
Hardware encoder: NVENC (Maxwell) (GeForce 945M) vs UVD 2.2 (Radeon HD 5870). Decoder: PureVideo HD (VP6) vs UVD 2.2. Supported codecs: H.264,H.265,MPEG-2 (GeForce 945M) vs H.264 (Radeon HD 5870).
| Feature | GeForce 945M | Radeon HD 5870 |
|---|---|---|
| Encoder | NVENC (Maxwell) | UVD 2.2 |
| Decoder | PureVideo HD (VP6) | UVD 2.2 |
| Codecs | H.264,H.265,MPEG-2 | H.264 |
Power & Dimensions
The GeForce 945M draws 75W versus the Radeon HD 5870's 188W β a 85.9% difference. The GeForce 945M is more power-efficient. Recommended PSU: 350W (GeForce 945M) vs 500W (Radeon HD 5870). Power connectors: Legacy vs 2x 6-pin. Card length: 0mm vs 280mm, occupying 0 vs 2 slots.
| Feature | GeForce 945M | Radeon HD 5870 |
|---|---|---|
| TDP | 75W-60% | 188W |
| Recommended PSU | 350W-30% | 500W |
| Power Connector | Legacy | 2x 6-pin |
| Length | 0mm | 280mm |
| Height | 0mm | β |
| Slots | 0-100% | 2 |
| Temp (Load) | 75 | β |
| Perf/Watt | 28.1+142% | 11.6 |
Value Analysis
The newer card here is GeForce 945M (2015 vs 2009).
| Feature | GeForce 945M | Radeon HD 5870 |
|---|---|---|
| MSRP | β | $399 |
| Codename | GM107 | Cypress |
| Release | October 27 2015 | September 23 2009 |
| Ranking | #671 | #663 |
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