GeForce GTX 660 vs GeForce GTX 880M SLI

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 660 vs GeForce GTX 880M SLI 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 660 vs GeForce GTX 880M SLI: 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 660

2012

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 17.6 vs 0 G3D/$ ($229 MSRP vs Unknown MSRP).
✅50% more VRAM for high-resolution textures and newer games (3 GB vs 2 GB).
✅Draws 140W instead of 206W, a 66W reduction.

Trade-offs

❌Lower average FPS than GeForce GTX 880M SLI across 50 tracked games in our benchmark data.
❌2012 hardware with 3 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

GeForce GTX 880M SLI

2014

Why buy it

✅32.3% more average FPS across 50 tracked games in our benchmark data.

Trade-offs

❌Less VRAM, with 2 GB vs 3 GB for high-resolution textures and newer games.
❌2014 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 17.6 G3D/$ (Unknown MSRP vs $229 MSRP).
❌47.1% higher power demand at 206W vs 140W.

Quick Answers

Which GPU is faster for gaming right now?

GeForce GTX 880M SLI is the faster gaming card right now. In our data, it leads by 32.3% in average FPS across 50 tracked games in our benchmark data and by 1.3% in PassMark G3D (4,091 vs 4,040), so the answer here is pretty clean.

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

GeForce GTX 660 is the safer long-term pick for 2026 and beyond. The case is simple: 3 GB vs 2 GB of VRAM. That gives it more room for heavier textures and higher settings over time.

Which GPU is the better buy today?

GeForce GTX 660 makes the most sense today based on the pricing and value data we have for this matchup. GeForce GTX 880M SLI still makes more sense if max raw gaming performance matters more than value.

GeForce GTX 660 vs GeForce GTX 880M SLI Technical Specifications

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

GeForce GTX 660

The GeForce GTX 660 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: 4,040 points. Launch price was $229.

GeForce GTX 880M SLI

The GeForce GTX 880M SLI is manufactured by NVIDIA. It was released in March 12 2014. It features the Kepler architecture. The core clock speed is 954 MHz. It has 3072 shading units. The thermal design power (TDP) is 206W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,091 points.

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Graphics Performance

The GeForce GTX 660 scores 4,040 and the GeForce GTX 880M SLI reaches 4,091 in the G3D Mark benchmark — just a 1.3% difference, making them near-identical in rasterization performance. The GeForce GTX 660 is built on Kepler while the GeForce GTX 880M SLI uses Kepler, both on a 28 nm process. Shader units: 960 (GeForce GTX 660) vs 3,072 (GeForce GTX 880M SLI).

Feature	GeForce GTX 660	GeForce GTX 880M SLI
G3D Mark Score	4,040	4,091+1%
Architecture	Kepler	Kepler
Process Node	28 nm	28 nm
Shading Units	960	3072+220%

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GTX 660	GeForce GTX 880M SLI
Upscaling Tech	Upscaling support	Upscaling support
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	NVIDIA Reflex

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Video Memory (VRAM)

The GeForce GTX 660 has 3 GB of VRAM, while the GeForce GTX 880M SLI carries 2 GB. GeForce GTX 660 gives you 50% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bandwidth: 144.2 GB/s (GeForce GTX 660) vs 160 GB/s (GeForce GTX 880M SLI) — a 11% advantage for the GeForce GTX 880M SLI. Memory bus width is 192-bit on the GeForce GTX 660 and 256-bit on the GeForce GTX 880M SLI.

Feature	GeForce GTX 660	GeForce GTX 880M SLI
VRAM Capacity	3 GB+50%	2 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	144.2 GB/s	160 GB/s+11%
Bus Width	192-bit	256-bit+33%

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Power & Dimensions

The GeForce GTX 660 draws 140W versus the GeForce GTX 880M SLI's 206W — a 38.2% difference. The GeForce GTX 660 is more power-efficient. Recommended PSU: 450W (GeForce GTX 660) vs 350W (GeForce GTX 880M SLI). Power connectors: 1x 6-pin vs PCIe-powered.

Feature	GeForce GTX 660	GeForce GTX 880M SLI
TDP	140W-32%	206W
Recommended PSU	450W	350W-22%
Power Connector	1x 6-pin	PCIe-powered
Length	241mm	—
Slots	2	—
Perf/Watt	28.9+45%	19.9

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Value Analysis

The newer card here is GeForce GTX 880M SLI (2014 vs 2012).

Feature	GeForce GTX 660	GeForce GTX 880M SLI
MSRP	$229	—
Codename	GK106	N15E-GX-A2
Release	September 6 2012	March 12 2014
Ranking	#490	#310

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