
Radeon HD 2900 XT vs Radeon HD 6630M

Radeon HD 2900 XT
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Radeon HD 6630M
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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 2900 XT is positioned at rank 666 and the Radeon HD 6630M is on rank 81, so the Radeon HD 6630M 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 2900 XT
Performance Per Dollar Radeon HD 6630M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 6630M is the superior choice for raw performance. It leads with a 3.8% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 2900 XT.
| Insight | Radeon HD 2900 XT | Radeon HD 6630M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3.8%) | ✅Leading raw performance (+3.8%) |
| Longevity | 🛑Obsolete Architecture (2013 / TeraScale 2 (2009−2015)) | 🛑Obsolete Architecture (2011 / TeraScale 3 (2010−2013)) |
| 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 Radeon HD 6630M 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 2900 XT and Radeon HD 6630M

Radeon HD 2900 XT
The Radeon HD 2900 XT is manufactured by AMD. It was released in January 7 2013. It features the TeraScale 2 architecture. The core clock speed is 725 MHz. It has 480 shading units. The thermal design power (TDP) is 25W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 660 points.

Radeon HD 6630M
The Radeon HD 6630M is manufactured by AMD. It was released in December 1 2011. It features the TeraScale 3 architecture. The core clock speed is 750 MHz. It has 1280 shading units. The thermal design power (TDP) is 186W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 685 points. Launch price was $180.
Graphics Performance
The Radeon HD 2900 XT scores 660 and the Radeon HD 6630M reaches 685 in the G3D Mark benchmark — just a 3.8% difference, making them near-identical in rasterization performance. The Radeon HD 2900 XT is built on TeraScale 2 while the Radeon HD 6630M uses TeraScale 3, both on a 40 nm process. Shader units: 480 (Radeon HD 2900 XT) vs 1,280 (Radeon HD 6630M). Raw compute: 0.696 TFLOPS (Radeon HD 2900 XT) vs 1.92 TFLOPS (Radeon HD 6630M).
| Feature | Radeon HD 2900 XT | Radeon HD 6630M |
|---|---|---|
| G3D Mark Score | 660 | 685+4% |
| Architecture | TeraScale 2 | TeraScale 3 |
| Process Node | 40 nm | 40 nm |
| Shading Units | 480 | 1280+167% |
| Compute (TFLOPS) | 0.696 TFLOPS | 1.92 TFLOPS+176% |
| ROPs | 8 | 32+300% |
| TMUs | 24 | 80+233% |
| L1 Cache | 48 KB | 320 KB+567% |
| L2 Cache | 256 KB | 512 KB+100% |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 2900 XT | Radeon HD 6630M |
|---|---|---|
| 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 1 GB of video memory. Bus width: 128-bit vs System. L2 Cache: 256 KB (Radeon HD 2900 XT) vs 512 KB (Radeon HD 6630M) — the Radeon HD 6630M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 2900 XT | Radeon HD 6630M |
|---|---|---|
| VRAM Capacity | 1 GB | 1 GB |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 128-bit | System |
| L2 Cache | 256 KB | 512 KB+100% |
Power & Dimensions
The Radeon HD 2900 XT draws 25W versus the Radeon HD 6630M's 186W — a 152.6% difference. The Radeon HD 2900 XT is more power-efficient. Recommended PSU: 350W (Radeon HD 2900 XT) vs 350W (Radeon HD 6630M). Power connectors: 1x 6-pin vs 1x 6-pin.
| Feature | Radeon HD 2900 XT | Radeon HD 6630M |
|---|---|---|
| TDP | 25W-87% | 186W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | 1x 6-pin |
| Length | 241mm | — |
| Slots | 2 | — |
| Perf/Watt | 26.4+614% | 3.7 |
Value Analysis
The Radeon HD 2900 XT is the newer GPU (2013 vs 2011).
| Feature | Radeon HD 2900 XT | Radeon HD 6630M |
|---|---|---|
| MSRP | $399 | — |
| Avg Price (30d) | $20 | — |
| Codename | Thames | Cayman |
| Release | January 7 2013 | December 1 2011 |
| Ranking | #883 | #598 |
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