CPU
GPU
Radeon HD 6490M
Popular choices:
GeForce 7900 GTX
Popular choices:
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 6490M is positioned at rank 255 and the GeForce 7900 GTX is on rank 711, so the Radeon HD 6490M 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 6490M
Performance Per Dollar GeForce 7900 GTX
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce 7900 GTX is the superior choice for raw performance. It leads with a 2.6% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 6490M.
| Insight | Radeon HD 6490M | GeForce 7900 GTX |
|---|---|---|
| Performance | ❌Lower raw frame rates (-2.6%) | ✅Leading raw performance (+2.6%) |
| Longevity | 🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015)) | 🛑Obsolete Architecture (2008 / G9x (2007−2010)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
While current pricing data is unavailable, the GeForce 7900 GTX remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
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 6490M and GeForce 7900 GTX
Radeon HD 6490M
The Radeon HD 6490M is manufactured by AMD. It was released in January 4 2011. It features the TeraScale 2 architecture. The core clock speed is 680 MHz. It has 960 shading units. The thermal design power (TDP) is 75W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 378 points.
GeForce 7900 GTX
The GeForce 7900 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: 388 points.
Graphics Performance
The Radeon HD 6490M scores 378 and the GeForce 7900 GTX reaches 388 in the G3D Mark benchmark — just a 2.6% difference, making them near-identical in rasterization performance. The Radeon HD 6490M is built on TeraScale 2 while the GeForce 7900 GTX uses G9x, both on 40 nm vs 65 nm. Shader units: 960 (Radeon HD 6490M) vs 224 (GeForce 7900 GTX).
| Feature | Radeon HD 6490M | GeForce 7900 GTX |
|---|---|---|
| G3D Mark Score | 378 | 388+3% |
| Architecture | TeraScale 2 | G9x |
| Process Node | 40 nm | 65 nm |
| Shading Units | 960+329% | 224 |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6490M | GeForce 7900 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)
Both cards feature 512 MB of video memory. Bus width: System vs 64-bit.
| Feature | Radeon HD 6490M | GeForce 7900 GTX |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 64-bit |
Power & Dimensions
The Radeon HD 6490M draws 75W versus the GeForce 7900 GTX's 150W — a 66.7% difference. The Radeon HD 6490M is more power-efficient. Recommended PSU: 350W (Radeon HD 6490M) vs 350W (GeForce 7900 GTX). Power connectors: 1x 6-pin vs PCIe-powered.
| Feature | Radeon HD 6490M | GeForce 7900 GTX |
|---|---|---|
| TDP | 75W-50% | 150W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | PCIe-powered |
| Length | — | 229mm |
| Height | — | 111mm |
| Slots | — | 2 |
| Temp (Load) | — | 80 |
| Perf/Watt | 5.0+92% | 2.6 |
Value Analysis
The Radeon HD 6490M is the newer GPU (2011 vs 2008).
| Feature | Radeon HD 6490M | GeForce 7900 GTX |
|---|---|---|
| MSRP | — | $499 |
| Avg Price (30d) | — | $40 |
| Codename | Blackcomb | NB9E-GTX |
| Release | January 4 2011 | July 15 2008 |
| Ranking | #654 | #825 |
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