GeForce GTX 645 vs GeForce GTX 580M

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 GTX 580M

#166

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

347%

#168

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

314%

#169

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

314%

#173

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

285%

#174

Radeon RX 6300

MSRP: $60|Avg: $40

283%

#176

GeForce GTX 580M

MSRP: N/A|Avg: N/A

100%

#177

GeForce GTX 860M

MSRP: N/A|Avg: $50

99%

#179

Radeon R9 360

MSRP: $99|Avg: $55

98%

#180

GeForce GTX 1050 Ti (móvel)

MSRP: N/A|Avg: $65

98%

#181

GeForce GTX 460M

MSRP: N/A|Avg: $40

97%

#182

Radeon 6750M

MSRP: N/A|Avg: $25

97%

#183

GeForce GT 525M

MSRP: N/A|Avg: $30

96%

#185

Radeon R5 (Bristol Ridge)

MSRP: $50|Avg: $50

96%

#187

GeForce MX550

MSRP: $150|Avg: $150

95%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The GeForce GTX 645 is the superior choice for raw performance. It leads with a 0.1% higher G3D Mark score. However, the GeForce GTX 580M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.

Insight	GeForce GTX 645	GeForce GTX 580M
Performance	✅Leading raw performance (+0.1%)	❌Lower raw frame rates (-0.1%)
Longevity	🛑Obsolete Architecture (2010 / Fermi (2010−2014))	🛑Obsolete Architecture (2011 / Fermi 2.0 (2010−2014))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+100%)
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
Case Fit	📏 Compact / SFF Friendly	—

💎 Value Proposition

While current pricing data is unavailable, the GeForce GTX 645 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 GTX 645 Benchmark Check

GeForce GTX 580M Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GTX 645 and GeForce GTX 580M

GeForce GTX 645

The GeForce GTX 645 is manufactured by NVIDIA. It was released in May 31 2010. It features the Fermi architecture. The core clock speed is 607 MHz. It has 352 shading units. The thermal design power (TDP) is 200W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,880 points. Launch price was $279.

GeForce GTX 580M

The GeForce GTX 580M is manufactured by NVIDIA. It was released in June 28 2011. It features the Fermi 2.0 architecture. The core clock speed is 620 MHz. It has 384 shading units. The thermal design power (TDP) is 100W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,878 points.

⚡

Graphics Performance

The GeForce GTX 645 scores 1,880 and the GeForce GTX 580M reaches 1,878 in the G3D Mark benchmark — just a 0.1% difference, making them near-identical in rasterization performance. The GeForce GTX 645 is built on Fermi while the GeForce GTX 580M uses Fermi 2.0, both on a 40 nm process. Shader units: 352 (GeForce GTX 645) vs 384 (GeForce GTX 580M). Raw compute: 0.8554 TFLOPS (GeForce GTX 645) vs 0.9523 TFLOPS (GeForce GTX 580M).

Feature	GeForce GTX 645	GeForce GTX 580M
G3D Mark Score	1,880	1,878
Architecture	Fermi	Fermi 2.0
Process Node	40 nm	40 nm
Shading Units	352	384+9%
Compute (TFLOPS)	0.8554 TFLOPS	0.9523 TFLOPS+11%
ROPs	32	32
TMUs	44	64+45%
L1 Cache	704 KB+38%	512 KB
L2 Cache	512 KB	512 KB

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GTX 645	GeForce GTX 580M
Upscaling Tech	FSR 2.1 (Compatible)	FSR 2.1 (Compatible)
Frame Generation	FSR 3 (Compatible)	FSR 3 (Compatible)
Ray Reconstruction	No	No
Low Latency	Standard	Standard

💾

Video Memory (VRAM)

The GeForce GTX 645 comes with 1 GB of VRAM, while the GeForce GTX 580M has 2 GB. The GeForce GTX 580M offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 256-bit.

Feature	GeForce GTX 645	GeForce GTX 580M
VRAM Capacity	1 GB	2 GB+100%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	96 GB/s
Bus Width	128-bit	256-bit+100%
L2 Cache	512 KB	512 KB

🖥️

Display & API Support

DirectX support: 11.0 (GeForce GTX 645) vs 12 (11_0) (GeForce GTX 580M). Vulkan: 1.2 vs 1.2. OpenGL: 4.6 vs 4.0. Maximum simultaneous displays: 3 vs 2.

Feature	GeForce GTX 645	GeForce GTX 580M
DirectX	11.0	12 (11_0)+9%
Vulkan	1.2	1.2
OpenGL	4.6+15%	4.0
Max Displays	3+50%	2

🎬

Media & Encoding

Hardware encoder: NVENC (1st Gen) (GeForce GTX 645) vs PureVideo HD VP4 (GeForce GTX 580M). Decoder: PureVideo VP5 vs PureVideo HD VP4. Supported codecs: MPEG-2,VC-1,H.264,MPEG-4 (GeForce GTX 645) vs H.264,VC-1,MPEG-2,MPEG-4 ASP (GeForce GTX 580M).

Feature	GeForce GTX 645	GeForce GTX 580M
Encoder	NVENC (1st Gen)	PureVideo HD VP4
Decoder	PureVideo VP5	PureVideo HD VP4
Codecs	MPEG-2,VC-1,H.264,MPEG-4	H.264,VC-1,MPEG-2,MPEG-4 ASP

🔌

Power & Dimensions

The GeForce GTX 645 draws 200W versus the GeForce GTX 580M's 100W — a 66.7% difference. The GeForce GTX 580M is more power-efficient. Recommended PSU: 300W (GeForce GTX 645) vs 350W (GeForce GTX 580M). Power connectors: None vs 1x 6-pin. Typical load temperature: 80 vs 95°C.

Feature	GeForce GTX 645	GeForce GTX 580M
TDP	200W	100W-50%
Recommended PSU	300W-14%	350W
Power Connector	None	1x 6-pin
Length	147mm	—
Height	111mm	—
Slots	1	0-100%
Temp (Load)	80-16%	95°C
Perf/Watt	9.4	18.8+100%