
Radeon HD4670 vs Radeon HD 6490M

Radeon HD4670
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Radeon HD 6490M
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 HD4670 is positioned at rank 216 and the Radeon HD 6490M is on rank 255, so the Radeon HD4670 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon HD4670
Performance Per Dollar Radeon HD 6490M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 6490M is the superior choice for raw performance. It leads with a 3.3% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD4670.
| Insight | Radeon HD4670 | Radeon HD 6490M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3.3%) | ✅Leading raw performance (+3.3%) |
| Longevity | 🛑Obsolete Architecture (2010 / TeraScale 3 (2010−2013)) | 🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the Radeon HD 6490M 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 HD4670 and Radeon HD 6490M

Radeon HD4670
The Radeon HD4670 is manufactured by AMD. It was released in December 14 2010. It features the TeraScale 3 architecture. The boost clock speed is 880 MHz. It has 1536 shading units. The thermal design power (TDP) is 250W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 366 points. Launch price was $369.

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.
Graphics Performance
The Radeon HD4670 scores 366 and the Radeon HD 6490M reaches 378 in the G3D Mark benchmark — just a 3.3% difference, making them near-identical in rasterization performance. The Radeon HD4670 is built on TeraScale 3 while the Radeon HD 6490M uses TeraScale 2, both on a 40 nm process. Shader units: 1,536 (Radeon HD4670) vs 960 (Radeon HD 6490M). Raw compute: 2.703 TFLOPS (Radeon HD4670) vs 1.306 TFLOPS (Radeon HD 6490M).
| Feature | Radeon HD4670 | Radeon HD 6490M |
|---|---|---|
| G3D Mark Score | 366 | 378+3% |
| Architecture | TeraScale 3 | TeraScale 2 |
| Process Node | 40 nm | 40 nm |
| Shading Units | 1536+60% | 960 |
| Compute (TFLOPS) | 2.703 TFLOPS+107% | 1.306 TFLOPS |
| ROPs | 32 | 32 |
| TMUs | 96+100% | 48 |
| L1 Cache | 192 KB | 192 KB |
| L2 Cache | 512 KB | 512 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD4670 | Radeon HD 6490M |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 512 MB of video memory. Bus width: 128-bit vs System.
| Feature | Radeon HD4670 | Radeon HD 6490M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 128-bit | System |
| L2 Cache | 512 KB | 512 KB |
Power & Dimensions
The Radeon HD4670 draws 250W versus the Radeon HD 6490M's 75W — a 107.7% difference. The Radeon HD 6490M is more power-efficient. Recommended PSU: 300W (Radeon HD4670) vs 350W (Radeon HD 6490M). Power connectors: None vs 1x 6-pin.
| Feature | Radeon HD4670 | Radeon HD 6490M |
|---|---|---|
| TDP | 250W | 75W-70% |
| Recommended PSU | 300W-14% | 350W |
| Power Connector | None | 1x 6-pin |
| Perf/Watt | 1.5 | 5.0+233% |
Value Analysis
The Radeon HD 6490M is the newer GPU (2011 vs 2010).
| Feature | Radeon HD4670 | Radeon HD 6490M |
|---|---|---|
| MSRP | $67 | — |
| Avg Price (30d) | $15 | — |
| Codename | Cayman | Blackcomb |
| Release | December 14 2010 | January 4 2011 |
| Ranking | #596 | #654 |
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