
GeForce 6600 GT

GeForce 6800 GT
GeForce 6600 GT vs GeForce 6800 GT 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 GT vs GeForce 6800 GT 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 GT vs GeForce 6800 GT: 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 GT
2012Why buy it
- ✅0.7% more average FPS across 50 tracked games in our benchmark data.
- ✅Costs $200 less on MSRP ($199 MSRP vs $399 MSRP).
- ✅Delivers 101.9% more G3D Mark for each dollar spent, at 0.7 vs 0.4 G3D/$ ($199 MSRP vs $399 MSRP).
- ✅Measures 183mm instead of 216mm, a 33mm shorter card that is more SFF-friendly.
Trade-offs
- ❌2012 hardware with 256 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
GeForce 6800 GT
2008Why buy it
- ✅Competitive enough if your priority is price, power, or specific feature preference.
Trade-offs
- ❌Lower average FPS than GeForce 6600 GT across 50 tracked games in our benchmark data.
- ❌2008 hardware with 256 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌100.5% HIGHER MSRP$399 MSRPvs$199 MSRP
- ❌Lower G3D Mark per dollar, at 0.4 vs 0.7 G3D/$ ($399 MSRP vs $199 MSRP).
- ❌18% longer card at 216mm vs 183mm.
Quick Answers
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GeForce 6600 GT vs GeForce 6800 GT Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce 6600 GT
The GeForce 6600 GT is manufactured by NVIDIA. It was released in August 16 2012. It features the Kepler architecture. The core clock ranges from 915 MHz to 980 MHz. It has 1344 shading units. The thermal design power (TDP) is 150W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 143 points. Launch price was $299.

GeForce 6800 GT
The GeForce 6800 GT is manufactured by NVIDIA. It was released in July 15 2008. It features the G9x architecture. The core clock speed is 500 MHz. It has 224 shading units. The thermal design power (TDP) is 150W. Manufactured using 65 nm process technology. G3D Mark benchmark score: 142 points.
Graphics Performance
The GeForce 6600 GT scores 143 and the GeForce 6800 GT reaches 142 in the G3D Mark benchmark — just a 0.7% difference, making them near-identical in rasterization performance. The GeForce 6600 GT is built on Kepler while the GeForce 6800 GT uses G9x, both on 28 nm vs 65 nm. Shader units: 1,344 (GeForce 6600 GT) vs 224 (GeForce 6800 GT).
| Feature | GeForce 6600 GT | GeForce 6800 GT |
|---|---|---|
| G3D Mark Score | 143 | 142 |
| Architecture | Kepler | G9x |
| Process Node | 28 nm | 65 nm |
| Shading Units | 1344+500% | 224 |
Advanced Features (DLSS/FSR)
| Feature | GeForce 6600 GT | GeForce 6800 GT |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | NVIDIA Reflex |
Video Memory (VRAM)
Both cards ship with 256 MB of GDDR5. Memory bus width is 128-bit on the GeForce 6600 GT and 64-bit on the GeForce 6800 GT.
| Feature | GeForce 6600 GT | GeForce 6800 GT |
|---|---|---|
| VRAM Capacity | 0.25 GB | 0.25 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit+100% | 64-bit |
Display & API Support
DirectX support: 9.0c (GeForce 6600 GT) vs 9.0c (GeForce 6800 GT). Vulkan: None vs None. OpenGL: 2.1 vs 2.1. Maximum simultaneous displays: 2 vs 2.
| Feature | GeForce 6600 GT | GeForce 6800 GT |
|---|---|---|
| DirectX | 9.0c | 9.0c |
| Vulkan | None | None |
| OpenGL | 2.1 | 2.1 |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: No (GeForce 6600 GT) vs No (GeForce 6800 GT). Decoder: PureVideo vs PureVideo. Supported codecs: MPEG-2 (GeForce 6600 GT) vs MPEG-2 (GeForce 6800 GT).
| Feature | GeForce 6600 GT | GeForce 6800 GT |
|---|---|---|
| Encoder | No | No |
| Decoder | PureVideo | PureVideo |
| Codecs | MPEG-2 | MPEG-2 |
Power & Dimensions
The GeForce 6600 GT draws 150W versus the GeForce 6800 GT's 150W — a 0% difference. The GeForce 6800 GT is more power-efficient. Recommended PSU: 350W (GeForce 6600 GT) vs 350W (GeForce 6800 GT). Power connectors: Legacy vs Legacy. Card length: 183mm vs 216mm, occupying 1 vs 1 slots. Typical load temperature: 75°C vs 85°C.
| Feature | GeForce 6600 GT | GeForce 6800 GT |
|---|---|---|
| TDP | 150W | 150W |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | Legacy |
| Length | 183mm | 216mm |
| Height | 111mm | 111mm |
| Slots | 1 | 1 |
| Temp (Load) | 75°C-12% | 85°C |
| Perf/Watt | 1.0+11% | 0.9 |
Value Analysis
At launch, the GeForce 6600 GT came in at $199, while the GeForce 6800 GT launched at $399. On MSRP, GeForce 6600 GT was 50.1% cheaper ($200 less). Performance per dollar on MSRP (G3D Mark / MSRP): 0.7 (GeForce 6600 GT) vs 0.4 (GeForce 6800 GT) — the GeForce 6600 GT offers 75% better value. The newer card here is GeForce 6600 GT (2012 vs 2008).
| Feature | GeForce 6600 GT | GeForce 6800 GT |
|---|---|---|
| MSRP | $199-50% | $399 |
| Performance per Dollar | 0.7+75% | 0.4 |
| Codename | GK104 | NB9E-GTX |
| Release | August 16 2012 | July 15 2008 |
| Ranking | #472 | #825 |
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