Radeon HD 8490 vs GeForce 7800 GTX
Radeon HD 8490
Popular choices:
GeForce 7800 GTX
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Performance Spectrum - GPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money. The Radeon HD 8490 is positioned at rank 294 and the GeForce 7800 GTX is on rank 722, so the Radeon HD 8490 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon HD 8490
Performance Per Dollar GeForce 7800 GTX
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce 7800 GTX is the superior choice for raw performance. It leads with a 1.9% higher G3D Mark score. However, the Radeon HD 8490 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Radeon HD 8490 | GeForce 7800 GTX |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.9%) | ✅Leading raw performance (+1.9%) |
| Longevity | 🛑Obsolete Architecture (2009 / TeraScale (2005−2013)) | 🛑Obsolete Architecture (2008 / G9x (2007−2010)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The Radeon HD 8490 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon HD 8490 holds the technical lead. Priced at $35 (vs $40), it costs 13% less, resulting in a 12.2% higher cost efficiency score.
| Insight | Radeon HD 8490 | GeForce 7800 GTX |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+12.2%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($35) | ⚠️Higher upfront cost ($40) |
Performance Check
Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.
Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.
Technical Specifications
Side-by-side comparison of Radeon HD 8490 and GeForce 7800 GTX
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.
GeForce 7800 GTX
The GeForce 7800 GTX is manufactured by NVIDIA. It was released in July 15 2008. It features the G9x architecture. The core clock speed is 500 MHz. It has 224 shading units. The thermal design power (TDP) is 150W. Manufactured using 65 nm process technology. G3D Mark benchmark score: 268 points.
Graphics Performance
The Radeon HD 8490 scores 263 and the GeForce 7800 GTX reaches 268 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The Radeon HD 8490 is built on TeraScale while the GeForce 7800 GTX uses G9x, both on 55 nm vs 65 nm. Shader units: 800 (Radeon HD 8490) vs 224 (GeForce 7800 GTX).
| Feature | Radeon HD 8490 | GeForce 7800 GTX |
|---|---|---|
| G3D Mark Score | 263 | 268+2% |
| Architecture | TeraScale | G9x |
| Process Node | 55 nm | 65 nm |
| Shading Units | 800+257% | 224 |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 8490 | GeForce 7800 GTX |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 2.1 (Compatible) |
| Frame Generation | Not Supported | FSR 3 (Compatible) |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | Standard |
Video Memory (VRAM)
The Radeon HD 8490 comes with 1 GB of VRAM, while the GeForce 7800 GTX has 512 MB. The Radeon HD 8490 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 64-bit.
| Feature | Radeon HD 8490 | GeForce 7800 GTX |
|---|---|---|
| VRAM Capacity | 1 GB+100% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 64-bit | 64-bit |
Display & API Support
DirectX support: 11.2 (Radeon HD 8490) vs 9.0c (GeForce 7800 GTX). OpenGL: 4.4 vs 2.1. Maximum simultaneous displays: 2 vs 2.
| Feature | Radeon HD 8490 | GeForce 7800 GTX |
|---|---|---|
| DirectX | 11.2+24% | 9.0c |
| OpenGL | 4.4+110% | 2.1 |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: UVD 3.1 (Radeon HD 8490) vs No (GeForce 7800 GTX). Decoder: UVD 3.1 vs PureVideo. Supported codecs: H.264,MPEG-2,VC-1 (Radeon HD 8490) vs MPEG-2 (GeForce 7800 GTX).
| Feature | Radeon HD 8490 | GeForce 7800 GTX |
|---|---|---|
| Encoder | UVD 3.1 | No |
| Decoder | UVD 3.1 | PureVideo |
| Codecs | H.264,MPEG-2,VC-1 | MPEG-2 |
Power & Dimensions
The Radeon HD 8490 draws 190W versus the GeForce 7800 GTX's 150W — a 23.5% difference. The GeForce 7800 GTX is more power-efficient. Recommended PSU: 350W (Radeon HD 8490) vs 350W (GeForce 7800 GTX). Power connectors: 1x 6-pin vs PCIe-powered. Card length: 168mm vs 228mm, occupying 1 vs 1 slots.
| Feature | Radeon HD 8490 | GeForce 7800 GTX |
|---|---|---|
| TDP | 190W | 150W-21% |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | PCIe-powered |
| Length | 168mm | 228mm |
| Height | — | 111mm |
| Slots | 1 | 1 |
| Temp (Load) | — | 85°C |
| Perf/Watt | 1.4 | 1.8+29% |
Value Analysis
The Radeon HD 8490 launched at $99 MSRP and currently averages $35, while the GeForce 7800 GTX launched at $599 and now averages $40. The Radeon HD 8490 costs 12.5% less ($5 savings) at current market prices. Performance per dollar (G3D Mark / price): 7.5 (Radeon HD 8490) vs 6.7 (GeForce 7800 GTX) — the Radeon HD 8490 offers 11.9% better value. The Radeon HD 8490 is the newer GPU (2009 vs 2008).
| Feature | Radeon HD 8490 | GeForce 7800 GTX |
|---|---|---|
| MSRP | $99-83% | $599 |
| Avg Price (30d) | $35-13% | $40 |
| Performance per Dollar | 7.5+12% | 6.7 |
| Codename | RV790 | NB9E-GTX |
| Release | April 2 2009 | July 15 2008 |
| Ranking | #762 | #825 |
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