GeForce 940M vs GeForce GT 640 Rev. 2

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar

Based on actual market prices and performance benchmarks.

Performance Per Dollar GeForce GT 640 Rev. 2

#1

GeForce RTX 3060 Ti

MSRP: $399|Avg: $280

615%

#2

GeForce RTX 5060

MSRP: $299|Avg: $299

591%

#3

Radeon RX 5600 XT

MSRP: $279|Avg: $180

584%

#4

Radeon RX 9060

MSRP: $249|Avg: $249

583%

#5

GeForce RTX 5050

MSRP: $249|Avg: $249

582%

#6

GeForce RTX 3050 OEM

MSRP: $249|Avg: $150

578%

#7

Arc A580

MSRP: $179|Avg: $179

571%

#8

Radeon RX 9060 XT

MSRP: $299|Avg: $299

569%

#9

Radeon RX 9060 XT 8GB

MSRP: $299|Avg: $299

564%

#10

Radeon RX 7600

MSRP: $269|Avg: $250

562%

#11

Radeon RX 6600

MSRP: $329|Avg: $180

555%

#12

GeForce RTX 4060

MSRP: $299|Avg: $299

554%

#13

Arc B570

MSRP: $219|Avg: $219

544%

#14

Arc B580

MSRP: $249|Avg: $249

544%

#94

Radeon R5 430 OEM

MSRP: N/A|Avg: $13

678%

#109

GeForce GT 640 Rev. 2

MSRP: $99|Avg: $99

100%

#111

Radeon HD 8550D

MSRP: $50|Avg: $50

96%

#112

Radeon 520

MSRP: $78|Avg: $78

95%

#113

Radeon HD 4810

MSRP: $70|Avg: $15

94%

#115

GeForce 605

MSRP: $30|Avg: $30

93%

#116

Radeon HD 8410G

MSRP: $40|Avg: $5

92%

#117

RADEON HD6530D

MSRP: $50|Avg: $10

90%

#118

Moore Threads MTT S30

MSRP: $55|Avg: $55

89%

#119

Radeon 535

MSRP: $100|Avg: $100

89%

#122

GeForce GTS 450

MSRP: $129|Avg: $20

88%

#123

Radeon HD 8570D

MSRP: $40|Avg: $15

88%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The GeForce GT 640 Rev. 2 is the superior choice for raw performance. It leads with a 3.1% higher G3D Mark score. However, the GeForce 940M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.

Insight	GeForce 940M	GeForce GT 640 Rev. 2
Performance	❌Lower raw frame rates (-3.1%)	✅Leading raw performance (+3.1%)
Longevity	🛑Obsolete Architecture (2015 / Maxwell (2014−2017))	🛑Obsolete Architecture (2013 / Kepler 2.0 (2013−2015))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	✅ More VRAM (+300%)	❌ Less VRAM capacity
Efficiency	💡 Excellent Perf/Watt	⚡ Higher Power Consumption
Case Fit	—	📏 Compact / SFF Friendly

💎 Value Proposition

While current pricing data is unavailable, the GeForce GT 640 Rev. 2 remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.

Performance Check

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

GeForce 940M Benchmark Check

GeForce GT 640 Rev. 2 Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce 940M and GeForce GT 640 Rev. 2

GeForce 940M

The GeForce 940M is manufactured by NVIDIA. It was released in March 13 2015. It features the Maxwell architecture. The core clock ranges from 1072 MHz to 1176 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,133 points.

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.

⚡

Graphics Performance

The GeForce 940M scores 1,133 and the GeForce GT 640 Rev. 2 reaches 1,168 in the G3D Mark benchmark — just a 3.1% difference, making them near-identical in rasterization performance. The GeForce 940M is built on Maxwell while the GeForce GT 640 Rev. 2 uses Kepler 2.0, both on a 28 nm process. Shader units: 384 (GeForce 940M) vs 384 (GeForce GT 640 Rev. 2). Raw compute: 0.9032 TFLOPS (GeForce 940M) vs 0.8033 TFLOPS (GeForce GT 640 Rev. 2).

Feature	GeForce 940M	GeForce GT 640 Rev. 2
G3D Mark Score	1,133	1,168+3%
Architecture	Maxwell	Kepler 2.0
Process Node	28 nm	28 nm
Shading Units	384	384
Compute (TFLOPS)	0.9032 TFLOPS+12%	0.8033 TFLOPS
ROPs	8	8
TMUs	24	32+33%
L1 Cache	192 KB+500%	32 KB
L2 Cache	1 MB+669%	0.13 MB

✨

Advanced Features (DLSS/FSR)

Feature	GeForce 940M	GeForce GT 640 Rev. 2
Upscaling Tech	FSR 1.0 (Software)	FSR 1.0 (Software)
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	Standard

💾

Video Memory (VRAM)

The GeForce 940M comes with 2 GB of VRAM, while the GeForce GT 640 Rev. 2 has 512 MB. The GeForce 940M offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 64-bit. L2 Cache: 1 MB (GeForce 940M) vs 0.13 MB (GeForce GT 640 Rev. 2) — the GeForce 940M has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce 940M	GeForce GT 640 Rev. 2
VRAM Capacity	2 GB+300%	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit+100%	64-bit
L2 Cache	1 MB+669%	0.13 MB

🖥️

Display & API Support

DirectX support: 12 (11_0) (GeForce 940M) vs 12 (11_0) (GeForce GT 640 Rev. 2). Vulkan: 1.1 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 3.

Feature	GeForce 940M	GeForce GT 640 Rev. 2
DirectX	12 (11_0)	12 (11_0)
Vulkan	1.1	1.2+9%
OpenGL	4.6	4.6
Max Displays	4+33%	3

🎬

Media & Encoding

Hardware encoder: NVENC (Maxwell) (GeForce 940M) vs NVENC (Kepler) (GeForce GT 640 Rev. 2). Decoder: PureVideo HD (VP6) vs PureVideo HD 5. Supported codecs: H.264,H.265,VP9 (GeForce 940M) vs H.264,MPEG-2,VC-1 (GeForce GT 640 Rev. 2).

Feature	GeForce 940M	GeForce GT 640 Rev. 2
Encoder	NVENC (Maxwell)	NVENC (Kepler)
Decoder	PureVideo HD (VP6)	PureVideo HD 5
Codecs	H.264,H.265,VP9	H.264,MPEG-2,VC-1

🔌

Power & Dimensions

The GeForce 940M draws 33W versus the GeForce GT 640 Rev. 2's 49W — a 39% difference. The GeForce 940M is more power-efficient. Recommended PSU: 350W (GeForce 940M) vs 300W (GeForce GT 640 Rev. 2). Power connectors: Legacy vs None. Card length: 0mm vs 145mm, occupying 0 vs 1 slots. Typical load temperature: 75 vs 65.