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 640 vs GeForce GT 640 Rev. 2 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 640 vs GeForce GT 640 Rev. 2: 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 640

2012

Why buy it

✅0.2% more average FPS across 50 tracked games in our benchmark data.
✅700% more VRAM for high-resolution textures and newer games (4 GB vs 512 MB).

Trade-offs

❌2012 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌32.7% higher power demand at 65W vs 49W.

GeForce GT 640 Rev. 2

2013

Why buy it

✅Draws 49W instead of 65W, a 16W reduction.

Trade-offs

❌Lower average FPS than GeForce GT 640 across 50 tracked games in our benchmark data.
❌Less VRAM, with 512 MB vs 4 GB for high-resolution textures and newer games.
❌2013 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Quick Answers

Which GPU is faster for gaming right now?

GeForce GT 640 is the faster gaming card right now. In our data, it leads by 0.2% in average FPS across 50 tracked games in our benchmark data and by 0.1% in PassMark G3D (1,169 vs 1,168), so the answer here is pretty clean.

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

GeForce GT 640 is the safer long-term pick for 2026 and beyond. The case is simple: 4 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?

GeForce GT 640 makes the most sense to buy today. It is priced the same on MSRP at $99 vs $99, and it leads G3D-per-dollar by 0.1% (11.8 vs 11.8), so the value case lines up with the gaming result.

GeForce GT 640 vs GeForce GT 640 Rev. 2 Technical Specifications

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

GeForce GT 640

The GeForce GT 640 is manufactured by NVIDIA. It was released in June 5 2012. It features the Kepler architecture. The core clock speed is 902 MHz. It has 384 shading units. The thermal design power (TDP) is 65W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,169 points. Launch price was $99.

GeForce GT 640 Rev. 2

The GeForce GT 640 Rev. 2 is manufactured by NVIDIA. It was released in May 29 2013. It features the Kepler 2.0 architecture. The core clock speed is 1046 MHz. It has 384 shading units. The thermal design power (TDP) is 49W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,168 points. Launch price was $89.

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Graphics Performance

The GeForce GT 640 scores 1,169 and the GeForce GT 640 Rev. 2 reaches 1,168 in the G3D Mark benchmark — just a 0.1% difference, making them near-identical in rasterization performance. The GeForce GT 640 is built on Kepler while the GeForce GT 640 Rev. 2 uses Kepler 2.0, both on a 28 nm process. Shader units: 384 (GeForce GT 640) vs 384 (GeForce GT 640 Rev. 2). Raw compute: 0.6927 TFLOPS (GeForce GT 640) vs 0.8033 TFLOPS (GeForce GT 640 Rev. 2).

Feature	GeForce GT 640	GeForce GT 640 Rev. 2
G3D Mark Score	1,169	1,168
Architecture	Kepler	Kepler 2.0
Process Node	28 nm	28 nm
Shading Units	384	384
Compute (TFLOPS)	0.6927 TFLOPS	0.8033 TFLOPS+16%
ROPs	16+100%	8
TMUs	32	32
L1 Cache	32 KB	32 KB
L2 Cache	256 KB+100%	128 KB

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Advanced Features (DLSS/FSR)

Feature	GeForce GT 640	GeForce GT 640 Rev. 2
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 GT 640 has 4 GB of VRAM, while the GeForce GT 640 Rev. 2 carries 512 MB. GeForce GT 640 gives you 700% 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 640 and 64-bit on the GeForce GT 640 Rev. 2. L2 Cache: 256 KB (GeForce GT 640) vs 128 KB (GeForce GT 640 Rev. 2) — the GeForce GT 640 has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GT 640	GeForce GT 640 Rev. 2
VRAM Capacity	4 GB+700%	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit+100%	64-bit
L2 Cache	256 KB+100%	128 KB

🖥️

Display & API Support

DirectX support: 11.0 (GeForce GT 640) vs 12 (11_0) (GeForce GT 640 Rev. 2). Vulkan: 1.1 vs 1.2. OpenGL: 4.5 vs 4.6. Maximum simultaneous displays: 3 vs 3.

Feature	GeForce GT 640	GeForce GT 640 Rev. 2
DirectX	11.0	12 (11_0)+9%
Vulkan	1.1	1.2+9%
OpenGL	4.5	4.6+2%
Max Displays	3	3

🎬

Media & Encoding

Hardware encoder: NVENC 1.0 (GeForce GT 640) vs NVENC (Kepler) (GeForce GT 640 Rev. 2). Decoder: PureVideo HD VP5 vs PureVideo HD 5. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 640) vs H.264,MPEG-2,VC-1 (GeForce GT 640 Rev. 2).

Feature	GeForce GT 640	GeForce GT 640 Rev. 2
Encoder	NVENC 1.0	NVENC (Kepler)
Decoder	PureVideo HD VP5	PureVideo HD 5
Codecs	MPEG-2,H.264,VC-1,MPEG-4 ASP	H.264,MPEG-2,VC-1

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Power & Dimensions

The GeForce GT 640 draws 65W versus the GeForce GT 640 Rev. 2's 49W — a 28.1% difference. The GeForce GT 640 Rev. 2 is more power-efficient. Recommended PSU: 300W (GeForce GT 640) vs 300W (GeForce GT 640 Rev. 2). Power connectors: None vs None. Card length: 145mm vs 145mm, occupying 1 vs 1 slots. Typical load temperature: 60°C vs 65.

Feature	GeForce GT 640	GeForce GT 640 Rev. 2
TDP	65W	49W-25%
Recommended PSU	300W	300W
Power Connector	None	None
Length	145mm	145mm
Height	111mm	111mm
Slots	1	1
Temp (Load)	60°C-8%	65
Perf/Watt	18.0	23.8+32%

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Value Analysis

At launch, the GeForce GT 640 came in at $99, while the GeForce GT 640 Rev. 2 launched at $99. Performance per dollar on MSRP (G3D Mark / MSRP): 11.8 (GeForce GT 640) vs 11.8 (GeForce GT 640 Rev. 2) — the GeForce GT 640 Rev. 2 offers 0% better value. The newer card here is GeForce GT 640 Rev. 2 (2013 vs 2012).

Feature	GeForce GT 640	GeForce GT 640 Rev. 2
MSRP	$99	$99
Performance per Dollar	11.8	11.8
Codename	GK107	GK208
Release	June 5 2012	May 29 2013
Ranking	#837	#786

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