GeForce GTX 675M SLI vs Radeon HD 6990M

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 675M SLI 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.

GeForce GTX 675M SLI 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 675M SLI

2011

Why buy it

✅Draws 2W instead of 100W, a 98W reduction.

Trade-offs

❌Lower average FPS than Radeon HD 6990M 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.

Radeon HD 6990M

2011

Why buy it

✅1.2% more average FPS across 50 tracked games in our benchmark data.

Trade-offs

❌2011 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌4900% higher power demand at 100W vs 2W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon HD 6990M is the faster gaming card right now. In our data, it leads by 1.2% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward GeForce GTX 675M SLI instead at 3,311 vs 3,264, so for this question the real-game FPS result matters more than the synthetic split.

Which GPU is the safer long-term pick for 2026 and beyond?

GeForce GTX 675M SLI is the safer long-term pick for 2026 and beyond because it comes out ahead on the available hardware-headroom signals for this matchup.

Which GPU is the better buy today?

GeForce GTX 675M SLI makes the most sense today based on the pricing and value data we have for this matchup. Radeon HD 6990M still makes more sense if max raw gaming performance matters more than value.

GeForce GTX 675M SLI vs Radeon HD 6990M Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce GTX 675M SLI

The GeForce GTX 675M SLI is manufactured by NVIDIA. It was released in January 6 2011. It features the Fermi architecture. The core clock speed is 620 MHz. It has 768 shading units. The thermal design power (TDP) is 2W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 3,311 points.

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.

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Graphics Performance

The GeForce GTX 675M SLI scores 3,311 and the Radeon HD 6990M reaches 3,264 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The GeForce GTX 675M SLI is built on Fermi while the Radeon HD 6990M uses TeraScale 2, both on a 40 nm process. Shader units: 768 (GeForce GTX 675M SLI) vs 1,120 (Radeon HD 6990M).

Feature	GeForce GTX 675M SLI	Radeon HD 6990M
G3D Mark Score	3,311+1%	3,264
Architecture	Fermi	TeraScale 2
Process Node	40 nm	40 nm
Shading Units	768	1120+46%

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Advanced Features (DLSS/FSR)

The GeForce GTX 675M SLI 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 675M SLI	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

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Video Memory (VRAM)

Both cards ship with 2 GB of video memory. Memory bus width is 128-bit on the GeForce GTX 675M SLI and System on the Radeon HD 6990M.

Feature	GeForce GTX 675M SLI	Radeon HD 6990M
VRAM Capacity	2 GB	2 GB
Memory Type	GDDR5	Shared
Memory Bandwidth	Unknown	System
Bus Width	128-bit	System

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Power & Dimensions

The GeForce GTX 675M SLI draws 2W versus the Radeon HD 6990M's 100W — a 192.2% difference. The GeForce GTX 675M SLI is more power-efficient. Recommended PSU: 350W (GeForce GTX 675M SLI) vs 350W (Radeon HD 6990M). Power connectors: 1x 6-pin vs 1x 6-pin.