GeForce 920M vs GeForce GT 640M LE

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 920M vs GeForce GT 640M LE 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 920M vs GeForce GT 640M LE: 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 920M

2016

Why buy it

✅42.7% more average FPS across 50 tracked games in our benchmark data.
✅Draws 16W instead of 32W, a 16W reduction.

Trade-offs

❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
❌2016 hardware with 512 MB 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 8.7 G3D/$ (Unknown MSRP vs $80 MSRP).

GeForce GT 640M LE

2012

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 8.7 vs 0 G3D/$ ($80 MSRP vs Unknown MSRP).
✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).

Trade-offs

❌Lower average FPS than GeForce 920M across 50 tracked games in our benchmark data.
❌2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌100% higher power demand at 32W vs 16W.

Quick Answers

Which GPU is faster for gaming right now?

GeForce 920M is the faster gaming card right now. In our data, it leads by 42.7% in average FPS across 50 tracked games in our benchmark data and by 2.9% in PassMark G3D (717 vs 697), so the answer here is pretty clean.

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

GeForce 920M is the safer long-term pick for 2026 and beyond. The case is simple: a newer 2016 generation instead of 2012. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

GeForce GT 640M LE makes the most sense today based on the pricing and value data we have for this matchup. If you are mainly targeting 1080p and some 1440p, GeForce GT 640M LE is the easier value choice. If you care more about 1080p and some 1440p headroom, GeForce 920M has the stronger long-term case.

GeForce 920M vs GeForce GT 640M LE Technical Specifications

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

GeForce 920M

The GeForce 920M is manufactured by NVIDIA. It was released in March 25 2016. It features the Maxwell architecture. The core clock ranges from 965 MHz to 993 MHz. It has 256 shading units. The thermal design power (TDP) is 16W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 717 points.

GeForce GT 640M LE

The GeForce GT 640M LE is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 625 MHz to 645 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 697 points.

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Graphics Performance

The GeForce 920M scores 717 and the GeForce GT 640M LE reaches 697 in the G3D Mark benchmark — just a 2.9% difference, making them near-identical in rasterization performance. The GeForce 920M is built on Maxwell while the GeForce GT 640M LE uses Kepler, both on a 28 nm process. Shader units: 256 (GeForce 920M) vs 384 (GeForce GT 640M LE). Raw compute: 0.5084 TFLOPS (GeForce 920M) vs 0.48 TFLOPS (GeForce GT 640M LE). Boost clocks: 993 MHz vs 645 MHz.

Feature	GeForce 920M	GeForce GT 640M LE
G3D Mark Score	717+3%	697
Architecture	Maxwell	Kepler
Process Node	28 nm	28 nm
Shading Units	256	384+50%
Compute (TFLOPS)	0.5084 TFLOPS+6%	0.48 TFLOPS
Boost Clock	993 MHz+54%	645 MHz
ROPs	8	16+100%
TMUs	24	32+33%
L1 Cache	128 KB+300%	32 KB
L2 Cache	1 MB+300%	0.25 MB

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Advanced Features (DLSS/FSR)

Feature	GeForce 920M	GeForce GT 640M LE
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 920M has 512 MB of VRAM, while the GeForce GT 640M LE carries 2 GB. GeForce GT 640M LE gives you 300% 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 920M and 128-bit on the GeForce GT 640M LE. L2 Cache: 1 MB (GeForce 920M) vs 0.25 MB (GeForce GT 640M LE) — the GeForce 920M has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce 920M	GeForce GT 640M LE
VRAM Capacity	0.5 GB	2 GB+300%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	1 MB+300%	0.25 MB

🖥️

Display & API Support

DirectX support: 11.0 (GeForce 920M) vs 12 (11_0) (GeForce GT 640M LE). Vulkan: 1.1 vs 1.2. OpenGL: 4.5 vs 4.6. Maximum simultaneous displays: 1 vs 4.

Feature	GeForce 920M	GeForce GT 640M LE
DirectX	11.0	12 (11_0)+9%
Vulkan	1.1	1.2+9%
OpenGL	4.5	4.6+2%
Max Displays	1	4+300%

🎬

Media & Encoding

Hardware encoder: No (GeForce 920M) vs NVENC 1st Gen (GeForce GT 640M LE). Decoder: PureVideo HD VP5 vs VP5. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce 920M) vs H.264,MPEG-2,VC-1,MPEG-4 (GeForce GT 640M LE).

Feature	GeForce 920M	GeForce GT 640M LE
Encoder	No	NVENC 1st Gen
Decoder	PureVideo HD VP5	VP5
Codecs	MPEG-2,H.264,VC-1,MPEG-4 ASP	H.264,MPEG-2,VC-1,MPEG-4

🔌

Power & Dimensions

The GeForce 920M draws 16W versus the GeForce GT 640M LE's 32W — a 66.7% difference. The GeForce 920M is more power-efficient. Recommended PSU: 350W (GeForce 920M) vs 350W (GeForce GT 640M LE). Power connectors: Legacy vs PCIe-powered. Card length: 0mm vs 0mm, occupying 0 vs 0 slots. Typical load temperature: 70°C vs 85.

Feature	GeForce 920M	GeForce GT 640M LE
TDP	16W-50%	32W
Recommended PSU	350W	350W
Power Connector	Legacy	PCIe-powered
Length	0mm	0mm
Height	0mm	0mm
Slots	0	0
Temp (Load)	70°C-18%	85
Perf/Watt	44.8+106%	21.8

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Value Analysis

The newer card here is GeForce 920M (2016 vs 2012).

Feature	GeForce 920M	GeForce GT 640M LE
MSRP	—	$80
Codename	GM108	GK107
Release	March 25 2016	March 22 2012
Ranking	#864	#909

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