GeForce GT 640 Rev. 2 vs Quadro K620M

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. The GeForce GT 640 Rev. 2 is positioned at rank 109 and the Quadro K620M is on rank 101, so the Quadro K620M offers better cost-efficiency for playing games.

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

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 Per Dollar Quadro K620M

#52

RTX A1000

MSRP: $749|Avg: $500

100%

#54

Radeon Pro 5700

MSRP: $799|Avg: $250

99%

#55

Quadro P4000

MSRP: $815|Avg: $290

97%

#57

Quadro RTX 3000

MSRP: $800|Avg: $891

94%

#58

RTX PRO 4000 Blackwell

MSRP: $1999|Avg: $1700

92%

#59

Radeon Vega Frontier Edition

MSRP: $999|Avg: $150

88%

#60

Radeon Pro WX 8200

MSRP: $999|Avg: $350

87%

#86

Tesla K20m

MSRP: $3199|Avg: $55

1020%

#101

Quadro K620M

MSRP: N/A|Avg: N/A

100%

#105

Quadro T2000 (móvel)

MSRP: $500|Avg: $150

96%

#111

Quadro P520

MSRP: $150|Avg: $150

94%

#113

Radeon Pro WX 3100

MSRP: $199|Avg: $65

90%

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 0.8% higher G3D Mark score. However, the Quadro K620M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.

Insight	GeForce GT 640 Rev. 2	Quadro K620M
Performance	✅Leading raw performance (+0.8%)	❌Lower raw frame rates (-0.8%)
Longevity	🛑Obsolete Architecture (2013 / Kepler 2.0 (2013−2015))	🛑Obsolete Architecture (2015 / Maxwell (2014−2017))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+700%)
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
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 GT 640 Rev. 2 Benchmark Check

Quadro K620M Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GT 640 Rev. 2 and Quadro K620M

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.

Quadro K620M

The Quadro K620M is manufactured by NVIDIA. It was released in March 1 2015. It features the Maxwell architecture. The core clock ranges from 1029 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 30W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,159 points.

⚡

Graphics Performance

The GeForce GT 640 Rev. 2 scores 1,168 and the Quadro K620M reaches 1,159 in the G3D Mark benchmark — just a 0.8% difference, making them near-identical in rasterization performance. The GeForce GT 640 Rev. 2 is built on Kepler 2.0 while the Quadro K620M uses Maxwell, both on a 28 nm process. Shader units: 384 (GeForce GT 640 Rev. 2) vs 384 (Quadro K620M). Raw compute: 0.8033 TFLOPS (GeForce GT 640 Rev. 2) vs 0.8632 TFLOPS (Quadro K620M).

Feature	GeForce GT 640 Rev. 2	Quadro K620M
G3D Mark Score	1,168	1,159
Architecture	Kepler 2.0	Maxwell
Process Node	28 nm	28 nm
Shading Units	384	384
Compute (TFLOPS)	0.8033 TFLOPS	0.8632 TFLOPS+7%
ROPs	8	8
TMUs	32+100%	16
L1 Cache	32 KB	128 KB+300%
L2 Cache	0.13 MB	1 MB+669%

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GT 640 Rev. 2	Quadro K620M
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 GT 640 Rev. 2 comes with 512 MB of VRAM, while the Quadro K620M has 4 GB. The Quadro K620M offers 700% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 64-bit. L2 Cache: 0.13 MB (GeForce GT 640 Rev. 2) vs 1 MB (Quadro K620M) — the Quadro K620M has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GT 640 Rev. 2	Quadro K620M
VRAM Capacity	0.5 GB	4 GB+700%
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	64-bit
L2 Cache	0.13 MB	1 MB+669%

🔌

Power & Dimensions

The GeForce GT 640 Rev. 2 draws 49W versus the Quadro K620M's 30W — a 48.1% difference. The Quadro K620M is more power-efficient. Recommended PSU: 300W (GeForce GT 640 Rev. 2) vs 350W (Quadro K620M). Power connectors: None vs PCIe-powered.