GeForce Go 7900 GTX
Radeon HD 8490
GeForce Go 7900 GTX vs Radeon HD 8490 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 Go 7900 GTX vs Radeon HD 8490 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 Go 7900 GTX vs Radeon HD 8490: 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 Go 7900 GTX
2015Why buy it
- ✅19.5% more average FPS across 50 tracked games in our benchmark data.
- ✅More future proof: Maxwell 2.0 (2014−2019) on 28nm with a newer platform for upcoming games.
Trade-offs
- ❌Less VRAM, with 256 MB vs 1 GB for high-resolution textures and newer games.
- ❌2015 hardware with 256 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 2.7 G3D/$ (Unknown MSRP vs $99 MSRP).
- ❌31.6% higher power demand at 250W vs 190W.
Radeon HD 8490
2009Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 2.7 vs 0 G3D/$ ($99 MSRP vs Unknown MSRP).
- ✅300% more VRAM for high-resolution textures and newer games (1 GB vs 256 MB).
- ✅Draws 190W instead of 250W, a 60W reduction.
Trade-offs
- ❌Lower average FPS than GeForce Go 7900 GTX across 50 tracked games in our benchmark data.
- ❌2009 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Quick Answers
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GeForce Go 7900 GTX vs Radeon HD 8490 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
GeForce Go 7900 GTX
The GeForce Go 7900 GTX is manufactured by NVIDIA. It was released in June 2 2015. It features the Maxwell 2.0 architecture. The core clock ranges from 1000 MHz to 1075 MHz. It has 2816 shading units. The thermal design power (TDP) is 250W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 270 points. Launch price was $649.
Radeon HD 8490
The Radeon HD 8490 is manufactured by AMD. It was released in April 2 2009. It features the TeraScale architecture. The core clock speed is 850 MHz. It has 800 shading units. The thermal design power (TDP) is 190W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 263 points. Launch price was $249.
Graphics Performance
The GeForce Go 7900 GTX scores 270 and the Radeon HD 8490 reaches 263 in the G3D Mark benchmark — just a 2.7% difference, making them near-identical in rasterization performance. The GeForce Go 7900 GTX is built on Maxwell 2.0 while the Radeon HD 8490 uses TeraScale, both on 28 nm vs 55 nm. Shader units: 2,816 (GeForce Go 7900 GTX) vs 800 (Radeon HD 8490). Raw compute: 6.06 TFLOPS (GeForce Go 7900 GTX) vs 1.36 TFLOPS (Radeon HD 8490).
| Feature | GeForce Go 7900 GTX | Radeon HD 8490 |
|---|---|---|
| G3D Mark Score | 270+3% | 263 |
| Architecture | Maxwell 2.0 | TeraScale |
| Process Node | 28 nm | 55 nm |
| Shading Units | 2816+252% | 800 |
| Compute (TFLOPS) | 6.06 TFLOPS+346% | 1.36 TFLOPS |
| ROPs | 96+500% | 16 |
| TMUs | 176+340% | 40 |
| L1 Cache | 1 MB+525% | 0.16 MB |
| L2 Cache | 3 MB+1100% | 0.25 MB |
Advanced Features (DLSS/FSR)
The GeForce Go 7900 GTX gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon HD 8490 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce Go 7900 GTX | Radeon HD 8490 |
|---|---|---|
| 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 Go 7900 GTX has 256 MB of VRAM, while the Radeon HD 8490 carries 1 GB. Radeon HD 8490 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 Go 7900 GTX and 64-bit on the Radeon HD 8490. L2 Cache: 3 MB (GeForce Go 7900 GTX) vs 0.25 MB (Radeon HD 8490) — the GeForce Go 7900 GTX has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce Go 7900 GTX | Radeon HD 8490 |
|---|---|---|
| VRAM Capacity | 0.25 GB | 1 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 3 MB+1100% | 0.25 MB |
Display & API Support
DirectX support: 9.0c (GeForce Go 7900 GTX) vs 11.2 (Radeon HD 8490). OpenGL: 2.1 vs 4.4. Maximum simultaneous displays: 2 vs 2.
| Feature | GeForce Go 7900 GTX | Radeon HD 8490 |
|---|---|---|
| DirectX | 9.0c | 11.2+24% |
| OpenGL | 2.1 | 4.4+110% |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: No (GeForce Go 7900 GTX) vs UVD 3.1 (Radeon HD 8490). Decoder: PureVideo vs UVD 3.1. Supported codecs: MPEG-2,WMV9,H.264 (GeForce Go 7900 GTX) vs H.264,MPEG-2,VC-1 (Radeon HD 8490).
| Feature | GeForce Go 7900 GTX | Radeon HD 8490 |
|---|---|---|
| Encoder | No | UVD 3.1 |
| Decoder | PureVideo | UVD 3.1 |
| Codecs | MPEG-2,WMV9,H.264 | H.264,MPEG-2,VC-1 |
Power & Dimensions
The GeForce Go 7900 GTX draws 250W versus the Radeon HD 8490's 190W — a 27.3% difference. The Radeon HD 8490 is more power-efficient. Recommended PSU: 350W (GeForce Go 7900 GTX) vs 350W (Radeon HD 8490). Power connectors: PCIe-powered vs 1x 6-pin. Card length: 0mm vs 168mm, occupying 0 vs 1 slots.
| Feature | GeForce Go 7900 GTX | Radeon HD 8490 |
|---|---|---|
| TDP | 250W | 190W-24% |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | 1x 6-pin |
| Length | 0mm | 168mm |
| Height | 0mm | — |
| Slots | 0-100% | 1 |
| Temp (Load) | 85°C | — |
| Perf/Watt | 1.1 | 1.4+27% |
Value Analysis
The newer card here is GeForce Go 7900 GTX (2015 vs 2009).
| Feature | GeForce Go 7900 GTX | Radeon HD 8490 |
|---|---|---|
| MSRP | — | $99 |
| Codename | GM200 | RV790 |
| Release | June 2 2015 | April 2 2009 |
| Ranking | #179 | #762 |
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