
RADEON X600XT vs GeForce 6600

RADEON X600XT
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GeForce 6600
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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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
Performance Per Dollar GeForce 6600
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The RADEON X600XT is significantly newer (2020 vs 2012). The RADEON X600XT likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce 6600 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The RADEON X600XT is the superior choice for raw performance. It leads with a 7% higher G3D Mark score and 100% more VRAM (512 MB vs 256 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce 6600.
| Insight | RADEON X600XT | GeForce 6600 |
|---|---|---|
| Performance | ✅Leading raw performance (+7%) | ❌Lower raw frame rates (-7%) |
| Longevity | RDNA 2.0 (2020−2025) (7nm) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| 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 |
💎 Value Proposition
The RADEON X600XT offers a compelling cost-to-performance ratio. Although it costs $10 (vs $10), its significant performance lead justifies the premium, offering 7% better value per dollar than the GeForce 6600.
| Insight | RADEON X600XT | GeForce 6600 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+7%) | ❌Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 X600XT and GeForce 6600

RADEON X600XT
The RADEON X600XT is manufactured by AMD. It was released in October 28 2020. It features the RDNA 2.0 architecture. The core clock ranges from 1825 MHz to 2250 MHz. It has 5120 shading units. The thermal design power (TDP) is 300W. Manufactured using 7 nm process technology. It features 80 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 92 points. Launch price was $999.

GeForce 6600
The GeForce 6600 is manufactured by NVIDIA. It was released in September 6 2012. It features the Kepler architecture. The core clock ranges from 980 MHz to 1033 MHz. It has 960 shading units. The thermal design power (TDP) is 140W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 86 points. Launch price was $229.
Graphics Performance
In G3D Mark, the RADEON X600XT scores 92 versus the GeForce 6600's 86 — the RADEON X600XT leads by 7%. The RADEON X600XT is built on RDNA 2.0 while the GeForce 6600 uses Kepler, both on 7 nm vs 28 nm. Shader units: 5,120 (RADEON X600XT) vs 960 (GeForce 6600). Raw compute: 23.04 TFLOPS (RADEON X600XT) vs 1.981 TFLOPS (GeForce 6600). Boost clocks: 2250 MHz vs 1033 MHz.
| Feature | RADEON X600XT | GeForce 6600 |
|---|---|---|
| G3D Mark Score | 92+7% | 86 |
| Architecture | RDNA 2.0 | Kepler |
| Process Node | 7 nm | 28 nm |
| Shading Units | 5120+433% | 960 |
| Compute (TFLOPS) | 23.04 TFLOPS+1063% | 1.981 TFLOPS |
| Boost Clock | 2250 MHz+118% | 1033 MHz |
| ROPs | 128+433% | 24 |
| TMUs | 320+300% | 80 |
| L1 Cache | 1 MB+1150% | 0.08 MB |
| L2 Cache | 4 MB+953% | 0.38 MB |
Advanced Features (DLSS/FSR)
| Feature | RADEON X600XT | GeForce 6600 |
|---|---|---|
| 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 | Standard |
Video Memory (VRAM)
The RADEON X600XT comes with 512 MB of VRAM, while the GeForce 6600 has 256 MB. The RADEON X600XT offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit. L2 Cache: 4 MB (RADEON X600XT) vs 0.38 MB (GeForce 6600) — the RADEON X600XT has significantly larger on-die cache to reduce VRAM reliance.
| Feature | RADEON X600XT | GeForce 6600 |
|---|---|---|
| VRAM Capacity | 0.5 GB+100% | 0.25 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 4 MB+953% | 0.38 MB |
Power & Dimensions
The RADEON X600XT draws 300W versus the GeForce 6600's 140W — a 72.7% difference. The GeForce 6600 is more power-efficient. Recommended PSU: 350W (RADEON X600XT) vs 350W (GeForce 6600). Power connectors: Legacy vs Legacy.
| Feature | RADEON X600XT | GeForce 6600 |
|---|---|---|
| TDP | 300W | 140W-53% |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | Legacy |
| Length | — | 183mm |
| Height | — | 111mm |
| Slots | — | 1 |
| Temp (Load) | — | 75°C |
| Perf/Watt | 0.3 | 0.6+100% |
Value Analysis
The RADEON X600XT launched at $0 MSRP and currently averages $10, while the GeForce 6600 launched at $270 and now averages $10. Performance per dollar (G3D Mark / price): 9.2 (RADEON X600XT) vs 8.6 (GeForce 6600) — the RADEON X600XT offers 7% better value. The RADEON X600XT is the newer GPU (2020 vs 2012).
| Feature | RADEON X600XT | GeForce 6600 |
|---|---|---|
| MSRP | $0-100% | $270 |
| Avg Price (30d) | $10 | $10 |
| Performance per Dollar | 9.2+7% | 8.6 |
| Codename | Navi 21 | GK106 |
| Release | October 28 2020 | September 6 2012 |
| Ranking | #35 | #490 |
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