
GeForce 6600 vs RADEON X800 GT

GeForce 6600
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RADEON X800 GT
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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 GeForce 6600 is positioned at rank 362 and the RADEON X800 GT is on rank 361, so the RADEON X800 GT offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar GeForce 6600
Performance Per Dollar RADEON X800 GT
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The RADEON X800 GT is significantly newer (2020 vs 2012). The RADEON X800 GT 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 GeForce 6600 is the superior choice for raw performance. It leads with a 2.4% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the RADEON X800 GT.
| Insight | GeForce 6600 | RADEON X800 GT |
|---|---|---|
| Performance | ✅Leading raw performance (+2.4%) | ❌Lower raw frame rates (-2.4%) |
| Longevity | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) | RDNA 2.0 (2020−2025) (7nm) |
| 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
The GeForce 6600 offers a compelling cost-to-performance ratio. Priced at $10 versus $15 for the RADEON X800 GT, it costs 33% less. While it maintains basic entry-level capabilities, this results in a 53.6% higher cost efficiency score.
| Insight | GeForce 6600 | RADEON X800 GT |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+53.6%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($10) | ⚠️Higher upfront cost ($15) |
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 GeForce 6600 and RADEON X800 GT

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.

RADEON X800 GT
The RADEON X800 GT 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 4608 shading units. The thermal design power (TDP) is 300W. Manufactured using 7 nm process technology. It features 72 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 84 points. Launch price was $649.
Graphics Performance
The GeForce 6600 scores 86 and the RADEON X800 GT reaches 84 in the G3D Mark benchmark — just a 2.4% difference, making them near-identical in rasterization performance. The GeForce 6600 is built on Kepler while the RADEON X800 GT uses RDNA 2.0, both on 28 nm vs 7 nm. Shader units: 960 (GeForce 6600) vs 4,608 (RADEON X800 GT). Raw compute: 1.981 TFLOPS (GeForce 6600) vs 20.74 TFLOPS (RADEON X800 GT). Boost clocks: 1033 MHz vs 2250 MHz.
| Feature | GeForce 6600 | RADEON X800 GT |
|---|---|---|
| G3D Mark Score | 86+2% | 84 |
| Architecture | Kepler | RDNA 2.0 |
| Process Node | 28 nm | 7 nm |
| Shading Units | 960 | 4608+380% |
| Compute (TFLOPS) | 1.981 TFLOPS | 20.74 TFLOPS+947% |
| Boost Clock | 1033 MHz | 2250 MHz+118% |
| ROPs | 24 | 128+433% |
| TMUs | 80 | 288+260% |
| L1 Cache | 0.08 MB | 1 MB+1150% |
| L2 Cache | 0.38 MB | 4 MB+953% |
Advanced Features (DLSS/FSR)
| Feature | GeForce 6600 | RADEON X800 GT |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 256 MB of GDDR5. Bus width: 128-bit vs 64-bit. L2 Cache: 0.38 MB (GeForce 6600) vs 4 MB (RADEON X800 GT) — the RADEON X800 GT has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 6600 | RADEON X800 GT |
|---|---|---|
| VRAM Capacity | 0.25 GB | 0.25 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
| L2 Cache | 0.38 MB | 4 MB+953% |
Power & Dimensions
The GeForce 6600 draws 140W versus the RADEON X800 GT's 300W — a 72.7% difference. The GeForce 6600 is more power-efficient. Recommended PSU: 350W (GeForce 6600) vs 350W (RADEON X800 GT). Power connectors: Legacy vs Legacy.
| Feature | GeForce 6600 | RADEON X800 GT |
|---|---|---|
| TDP | 140W-53% | 300W |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | Legacy |
| Length | 183mm | — |
| Height | 111mm | — |
| Slots | 1 | — |
| Temp (Load) | 75°C | — |
| Perf/Watt | 0.6+100% | 0.3 |
Value Analysis
The GeForce 6600 launched at $270 MSRP and currently averages $10, while the RADEON X800 GT launched at $249 and now averages $15. The GeForce 6600 costs 33.3% less ($5 savings) at current market prices. Performance per dollar (G3D Mark / price): 8.6 (GeForce 6600) vs 5.6 (RADEON X800 GT) — the GeForce 6600 offers 53.6% better value. The RADEON X800 GT is the newer GPU (2020 vs 2012).
| Feature | GeForce 6600 | RADEON X800 GT |
|---|---|---|
| MSRP | $270 | $249-8% |
| Avg Price (30d) | $10-33% | $15 |
| Performance per Dollar | 8.6+54% | 5.6 |
| Codename | GK106 | Navi 21 |
| Release | September 6 2012 | October 28 2020 |
| Ranking | #490 | #42 |
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