GeForce GT 640M vs GRID M6-0B

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 GT 640M vs GRID M6-0B 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 GT 640M vs GRID M6-0B: 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 GT 640M

2012

Why buy it

✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
✅Draws 32W instead of 100W, a 68W reduction.

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 0.6 G3D/$ (Unknown MSRP vs $1,500 MSRP).

GRID M6-0B

2015

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 0.6 vs 0 G3D/$ ($1,500 MSRP vs Unknown MSRP).

Trade-offs

❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
❌2015 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌212.5% higher power demand at 100W vs 32W.

Quick Answers

Which GPU is faster for gaming right now?

GRID M6-0B is the faster gaming card right now based on the synthetic data we have. It leads by 0.6% in PassMark G3D (912 vs 907), which is the best performance signal available in this matchup.

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

GeForce GT 640M is the safer long-term pick for 2026 and beyond. The case is simple: 2 GB vs 512 MB of VRAM. That gives it more room for heavier textures and higher settings over time.

Which GPU is the better buy today?

GRID M6-0B 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, GRID M6-0B is the easier value choice. If you care more about 1080p and some 1440p headroom, GeForce GT 640M has the stronger long-term case.

GeForce GT 640M vs GRID M6-0B Technical Specifications

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

GeForce GT 640M

The GeForce GT 640M 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: 907 points.

GRID M6-0B

The GRID M6-0B is manufactured by NVIDIA. It was released in August 30 2015. It features the Maxwell 2.0 architecture. The core clock speed is 722 MHz. It has 1536 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 912 points.

⚡

Graphics Performance

The GeForce GT 640M scores 907 and the GRID M6-0B reaches 912 in the G3D Mark benchmark — just a 0.6% difference, making them near-identical in rasterization performance. The GeForce GT 640M is built on Kepler while the GRID M6-0B uses Maxwell 2.0, both on a 28 nm process. Shader units: 384 (GeForce GT 640M) vs 1,536 (GRID M6-0B). Raw compute: 0.48 TFLOPS (GeForce GT 640M) vs 2.218 TFLOPS (GRID M6-0B).

Feature	GeForce GT 640M	GRID M6-0B
G3D Mark Score	907	912
Architecture	Kepler	Maxwell 2.0
Process Node	28 nm	28 nm
Shading Units	384	1536+300%
Compute (TFLOPS)	0.48 TFLOPS	2.218 TFLOPS+362%
ROPs	16	64+300%
TMUs	32	96+200%
L1 Cache	32 KB	576 KB+1700%
L2 Cache	0.25 MB	2 MB+700%

✨

Advanced Features (DLSS/FSR)

The GeForce GT 640M gets NVIDIA DLSS, which still tends to look cleaner in motion. The GRID M6-0B leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce GT 640M	GRID M6-0B
Upscaling Tech	Upscaling support	Upscaling support
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	Standard

💾

Video Memory (VRAM)

The GeForce GT 640M has 2 GB of VRAM, while the GRID M6-0B carries 512 MB. GeForce GT 640M 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 GT 640M and 64-bit on the GRID M6-0B. L2 Cache: 0.25 MB (GeForce GT 640M) vs 2 MB (GRID M6-0B) — the GRID M6-0B has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GT 640M	GRID M6-0B
VRAM Capacity	2 GB+300%	0.5 GB
Memory Type	GDDR5	GDDR5
Bus Width	128-bit+100%	64-bit
L2 Cache	0.25 MB	2 MB+700%

🖥️

Display & API Support

DirectX support: 11.0 (GeForce GT 640M) vs 12_1 (GRID M6-0B). Maximum simultaneous displays: 1 vs 0.

Feature	GeForce GT 640M	GRID M6-0B
DirectX	11.0	12_1+9%
Max Displays	1	0

🔌

Power & Dimensions

The GeForce GT 640M draws 32W versus the GRID M6-0B's 100W — a 103% difference. The GeForce GT 640M is more power-efficient. Recommended PSU: 350W (GeForce GT 640M) vs 350W (GRID M6-0B). Power connectors: PCIe-powered vs PCIe-powered. Card length: 0mm vs 1mm, occupying 0 vs 0 slots.

Feature	GeForce GT 640M	GRID M6-0B
TDP	32W-68%	100W
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Length	0mm	1mm
Height	0mm	—
Slots	0	0
Temp (Load)	70°C	—
Perf/Watt	28.3+211%	9.1

💰

Value Analysis

The newer card here is GRID M6-0B (2015 vs 2012).

Feature	GeForce GT 640M	GRID M6-0B
MSRP	—	$1500
Codename	GK107	GM204
Release	March 22 2012	August 30 2015
Ranking	#909	#535

Search GeForce GT 640M on Amazon

Search GRID M6-0B on Amazon

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.