
GeForce GTX 680M SLI

Radeon HD 6990M Crossfire
GeForce GTX 680M SLI vs Radeon HD 6990M Crossfire 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 SLI vs Radeon HD 6990M Crossfire 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 SLI vs Radeon HD 6990M Crossfire: 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 SLI
2012Why buy it
- ✅12.7% more average FPS across 50 tracked games in our benchmark data.
- ✅More future proof: Kepler (2012−2018) on 28nm with a newer platform for upcoming games.
Trade-offs
- ❌2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 5.0 G3D/$ (Unknown MSRP vs $699 MSRP).
- ❌50% higher power demand at 75W vs 50W.
Radeon HD 6990M Crossfire
2011Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 5.0 vs 0 G3D/$ ($699 MSRP vs Unknown MSRP).
- ✅Draws 50W instead of 75W, a 25W reduction.
Trade-offs
- ❌Lower average FPS than GeForce GTX 680M SLI across 50 tracked games in our benchmark data.
- ❌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 SLI vs Radeon HD 6990M Crossfire Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce GTX 680M SLI
The GeForce GTX 680M SLI is manufactured by NVIDIA. It was released in June 4 2012. It features the Kepler architecture. The core clock speed is 720 MHz. It has 2688 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,569 points.

Radeon HD 6990M Crossfire
The Radeon HD 6990M Crossfire 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 2240 shading units. The thermal design power (TDP) is 50W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 3,500 points.
Graphics Performance
The GeForce GTX 680M SLI scores 3,569 and the Radeon HD 6990M Crossfire reaches 3,500 in the G3D Mark benchmark — just a 2% difference, making them near-identical in rasterization performance. The GeForce GTX 680M SLI is built on Kepler while the Radeon HD 6990M Crossfire uses Terascale 2, both on 28 nm vs 40 nm. Shader units: 2,688 (GeForce GTX 680M SLI) vs 2,240 (Radeon HD 6990M Crossfire).
| Feature | GeForce GTX 680M SLI | Radeon HD 6990M Crossfire |
|---|---|---|
| G3D Mark Score | 3,569+2% | 3,500 |
| Architecture | Kepler | Terascale 2 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 2688+20% | 2240 |
Advanced Features (DLSS/FSR)
The GeForce GTX 680M SLI gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon HD 6990M Crossfire leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce GTX 680M SLI | Radeon HD 6990M Crossfire |
|---|---|---|
| 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)
Both cards ship with 2 GB of GDDR5. Memory bus width is 256-bit on the GeForce GTX 680M SLI and 128-bit on the Radeon HD 6990M Crossfire.
| Feature | GeForce GTX 680M SLI | Radeon HD 6990M Crossfire |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 256-bit+100% | 128-bit |
Display & API Support
DirectX support: 12 (11_0) (GeForce GTX 680M SLI) vs 11.0 (Radeon HD 6990M Crossfire). Vulkan: 1.2 vs N/A. OpenGL: 4.6 vs 4.4. Maximum simultaneous displays: 4 vs 6.
| Feature | GeForce GTX 680M SLI | Radeon HD 6990M Crossfire |
|---|---|---|
| DirectX | 12 (11_0)+9% | 11.0 |
| Vulkan | 1.2 | N/A |
| OpenGL | 4.6+5% | 4.4 |
| Max Displays | 4 | 6+50% |
Media & Encoding
Hardware encoder: NVENC (1st Gen) (GeForce GTX 680M SLI) vs None (Radeon HD 6990M Crossfire). Decoder: VP5 vs UVD 3.0. Supported codecs: H.264,VC-1,MPEG-2,MPEG-4 (GeForce GTX 680M SLI) vs MPEG-2,VC-1,H.264,MPEG-4,MVC (Radeon HD 6990M Crossfire).
| Feature | GeForce GTX 680M SLI | Radeon HD 6990M Crossfire |
|---|---|---|
| Encoder | NVENC (1st Gen) | None |
| Decoder | VP5 | UVD 3.0 |
| Codecs | H.264,VC-1,MPEG-2,MPEG-4 | MPEG-2,VC-1,H.264,MPEG-4,MVC |
Power & Dimensions
The GeForce GTX 680M SLI draws 75W versus the Radeon HD 6990M Crossfire's 50W — a 40% difference. The Radeon HD 6990M Crossfire is more power-efficient. Recommended PSU: 350W (GeForce GTX 680M SLI) vs 350W (Radeon HD 6990M Crossfire). Power connectors: 1x 6-pin vs 1x 6-pin. Typical load temperature: 80°C vs 90.
| Feature | GeForce GTX 680M SLI | Radeon HD 6990M Crossfire |
|---|---|---|
| TDP | 75W | 50W-33% |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | 1x 6-pin |
| Length | — | 0mm |
| Height | — | 0mm |
| Slots | — | 0 |
| Temp (Load) | 80°C-11% | 90 |
| Perf/Watt | 47.6 | 70.0+47% |
Value Analysis
The newer card here is GeForce GTX 680M SLI (2012 vs 2011).
| Feature | GeForce GTX 680M SLI | Radeon HD 6990M Crossfire |
|---|---|---|
| MSRP | — | $699 |
| Codename | N13E-GTX | Blackcomb XTX |
| Release | June 4 2012 | July 12 2011 |
| Ranking | #385 | #517 |
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