
GeForce GTX 680M

Radeon HD 6990M
GeForce GTX 680M vs Radeon HD 6990M 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 GTX 680M vs Radeon HD 6990M 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 GTX 680M vs Radeon HD 6990M: 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 GTX 680M
2012Why buy it
- ✅1.5% more average FPS across 50 tracked games in our benchmark data.
- ✅100% more VRAM for high-resolution textures and newer games (4 GB vs 2 GB).
- ✅More future proof: Kepler (2012−2018) on 28nm with a newer platform for upcoming games.
Trade-offs
- ❌2012 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Radeon HD 6990M
2011Why buy it
- ✅Competitive enough if your priority is price, power, or specific feature preference.
Trade-offs
- ❌Lower average FPS than GeForce GTX 680M across 50 tracked games in our benchmark data.
- ❌Less VRAM, with 2 GB vs 4 GB for high-resolution textures and newer games.
- ❌2011 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Quick Answers
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GeForce GTX 680M vs Radeon HD 6990M Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce GTX 680M
The GeForce GTX 680M is manufactured by NVIDIA. It was released in June 4 2012. It features the Kepler architecture. The core clock ranges from 719 MHz to 758 MHz. It has 1344 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,277 points. Launch price was $310.50.

Radeon HD 6990M
The Radeon HD 6990M is manufactured by AMD. It was released in July 12 2011. It features the TeraScale 2 architecture. The core clock speed is 715 MHz. It has 1120 shading units. The thermal design power (TDP) is 100W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 3,264 points.
Graphics Performance
The GeForce GTX 680M scores 3,277 and the Radeon HD 6990M reaches 3,264 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The GeForce GTX 680M is built on Kepler while the Radeon HD 6990M uses TeraScale 2, both on 28 nm vs 40 nm. Shader units: 1,344 (GeForce GTX 680M) vs 1,120 (Radeon HD 6990M). Raw compute: 2.038 TFLOPS (GeForce GTX 680M) vs 1.602 TFLOPS (Radeon HD 6990M).
| Feature | GeForce GTX 680M | Radeon HD 6990M |
|---|---|---|
| G3D Mark Score | 3,277 | 3,264 |
| Architecture | Kepler | TeraScale 2 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 1344+20% | 1120 |
| Compute (TFLOPS) | 2.038 TFLOPS+27% | 1.602 TFLOPS |
| ROPs | 32 | 32 |
| TMUs | 112+100% | 56 |
| L1 Cache | 112 KB | 224 KB+100% |
| L2 Cache | 512 KB | 512 KB |
Advanced Features (DLSS/FSR)
The GeForce GTX 680M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon HD 6990M leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce GTX 680M | Radeon HD 6990M |
|---|---|---|
| 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 GTX 680M has 4 GB of VRAM, while the Radeon HD 6990M carries 2 GB. GeForce GTX 680M 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 GTX 680M and System on the Radeon HD 6990M.
| Feature | GeForce GTX 680M | Radeon HD 6990M |
|---|---|---|
| VRAM Capacity | 4 GB+100% | 2 GB |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 128-bit | System |
| L2 Cache | 512 KB | 512 KB |
Power & Dimensions
The GeForce GTX 680M draws 100W versus the Radeon HD 6990M's 100W — a 0% difference. The Radeon HD 6990M is more power-efficient. Recommended PSU: 350W (GeForce GTX 680M) vs 350W (Radeon HD 6990M). Power connectors: 1x 6-pin vs 1x 6-pin.
| Feature | GeForce GTX 680M | Radeon HD 6990M |
|---|---|---|
| TDP | 100W | 100W |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | 1x 6-pin |
| Slots | 0 | — |
| Temp (Load) | 81°C | — |
| Perf/Watt | 32.8 | 32.6 |
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