
GeForce 6600

RADEON X600XT
GeForce 6600 vs RADEON X600XT Performance Spectrum
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.
GeForce 6600 vs RADEON X600XT FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
GeForce 6600 vs RADEON X600XT: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce 6600
2012Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 0.3 vs 0 G3D/$ ($270 MSRP vs Unknown MSRP).
- ✅Draws 140W instead of 300W, a 160W reduction.
Trade-offs
- ❌Less VRAM, with 256 MB vs 512 MB for high-resolution textures and newer games.
- ❌2012 hardware with 256 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
RADEON X600XT
2020Why buy it
- ✅100% more VRAM for high-resolution textures and newer games (512 MB vs 256 MB).
- ✅GeForce 6600 is already obsolete for modern gaming, so RADEON X600XT is the less risky modern option long term.
- ✅More future proof: RDNA 2.0 (2020−2025) on 7nm with a newer platform for upcoming games.
Trade-offs
- ❌Older hardware, 512 MB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
- ❌Lower G3D Mark per dollar, at 0 vs 0.3 G3D/$ (Unknown MSRP vs $270 MSRP).
- ❌114.3% higher power demand at 300W vs 140W.
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GeForce 6600 vs RADEON X600XT Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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 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.
Graphics Performance
In G3D Mark, the GeForce 6600 scores 86 versus the RADEON X600XT's 92 — the RADEON X600XT leads by 7%. The GeForce 6600 is built on Kepler while the RADEON X600XT uses RDNA 2.0, both on 28 nm vs 7 nm. Shader units: 960 (GeForce 6600) vs 5,120 (RADEON X600XT). Raw compute: 1.981 TFLOPS (GeForce 6600) vs 23.04 TFLOPS (RADEON X600XT). Boost clocks: 1033 MHz vs 2250 MHz.
| Feature | GeForce 6600 | RADEON X600XT |
|---|---|---|
| G3D Mark Score | 86 | 92+7% |
| Architecture | Kepler | RDNA 2.0 |
| Process Node | 28 nm | 7 nm |
| Shading Units | 960 | 5120+433% |
| Compute (TFLOPS) | 1.981 TFLOPS | 23.04 TFLOPS+1063% |
| Boost Clock | 1033 MHz | 2250 MHz+118% |
| ROPs | 24 | 128+433% |
| TMUs | 80 | 320+300% |
| L1 Cache | 0.08 MB | 1 MB+1150% |
| L2 Cache | 0.38 MB | 4 MB+953% |
Advanced Features (DLSS/FSR)
The GeForce 6600 gets NVIDIA DLSS, which still tends to look cleaner in motion. The RADEON X600XT leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce 6600 | RADEON X600XT |
|---|---|---|
| Upscaling Tech | Upscaling support | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce 6600 has 256 MB of VRAM, while the RADEON X600XT carries 512 MB. RADEON X600XT gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce 6600 and 64-bit on the RADEON X600XT. L2 Cache: 0.38 MB (GeForce 6600) vs 4 MB (RADEON X600XT) — the RADEON X600XT has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 6600 | RADEON X600XT |
|---|---|---|
| VRAM Capacity | 0.25 GB | 0.5 GB+100% |
| 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 X600XT's 300W — a 72.7% difference. The GeForce 6600 is more power-efficient. Recommended PSU: 350W (GeForce 6600) vs 350W (RADEON X600XT). Power connectors: Legacy vs Legacy.
| Feature | GeForce 6600 | RADEON X600XT |
|---|---|---|
| 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
At launch, the GeForce 6600 came in at $270, while the RADEON X600XT launched at $0. On MSRP, RADEON X600XT was 100+% cheaper ($270 less). Performance per dollar on MSRP (G3D Mark / MSRP): 0.3 (GeForce 6600) vs Infinity (RADEON X600XT) — the RADEON X600XT offers Infinity% better value. The newer card here is RADEON X600XT (2020 vs 2012).
| Feature | GeForce 6600 | RADEON X600XT |
|---|---|---|
| MSRP | $270 | $0-100% |
| Performance per Dollar | 0.3 | Infinity |
| Codename | GK106 | Navi 21 |
| Release | September 6 2012 | October 28 2020 |
| Ranking | #490 | #35 |
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