GeForce GTX 675M vs GeForce GTX 645

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. The GeForce GTX 675M is positioned at rank #129 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 GeForce GTX 675M

#119

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

293%

#121

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

265%

#122

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

265%

#126

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

241%

#127

Radeon RX 6300

MSRP: $60|Avg: $40

239%

#129

GeForce GTX 675M

MSRP: N/A|Avg: N/A

100%

#131

GeForce GT 335M

MSRP: N/A|Avg: $25

99%

#139

Iris Xe MAX Graphics

MSRP: $55|Avg: $40

97%

Based on actual market prices and performance benchmarks.

Performance Per Dollar

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 1.3% higher G3D Mark score. However, the GeForce GTX 675M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.

Insight	GeForce GTX 675M	GeForce GTX 645
Performance	❌Lower raw frame rates (-1.3%)	✅Leading raw performance (+1.3%)
Longevity	🛑Obsolete Architecture (2012 / Fermi 2.0 (2010−2014))	🛑Obsolete Architecture (2010 / Fermi (2010−2014))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	✅ More VRAM (+100%)	❌ 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 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 675M Benchmark Check

GeForce GTX 645 Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GTX 675M and GeForce GTX 645

GeForce GTX 675M

The GeForce GTX 675M is manufactured by NVIDIA. It was released in March 22 2012. 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: 1,855 points.

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.

⚡

Graphics Performance

The GeForce GTX 675M scores 1,855 and the GeForce GTX 645 reaches 1,880 in the G3D Mark benchmark — just a 1.3% difference, making them near-identical in rasterization performance. The GeForce GTX 675M is built on Fermi 2.0 while the GeForce GTX 645 uses Fermi, both on a 40 nm process. Shader units: 384 (GeForce GTX 675M) vs 352 (GeForce GTX 645). Raw compute: 0.9523 TFLOPS (GeForce GTX 675M) vs 0.8554 TFLOPS (GeForce GTX 645).

Feature	GeForce GTX 675M	GeForce GTX 645
G3D Mark Score	1,855	1,880+1%
Architecture	Fermi 2.0	Fermi
Process Node	40 nm	40 nm
Shading Units	384+9%	352
Compute (TFLOPS)	0.9523 TFLOPS+11%	0.8554 TFLOPS
ROPs	32	32
TMUs	64+45%	44
L1 Cache	512 KB	704 KB+38%
L2 Cache	512 KB	512 KB

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GTX 675M	GeForce GTX 645
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 675M comes with 2 GB of VRAM, while the GeForce GTX 645 has 1 GB. The GeForce GTX 675M offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 256-bit vs 128-bit.

Feature	GeForce GTX 675M	GeForce GTX 645
VRAM Capacity	2 GB+100%	1 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	96 GB/s	Unknown
Bus Width	256-bit+100%	128-bit
L2 Cache	512 KB	512 KB

🖥️

Display & API Support

DirectX support: 12 (11_0) (GeForce GTX 675M) vs 11.0 (GeForce GTX 645). OpenGL: 4.5 vs 4.6. Maximum simultaneous displays: 3 vs 3.

Feature	GeForce GTX 675M	GeForce GTX 645
DirectX	12 (11_0)+9%	11.0
OpenGL	4.5	4.6+2%
Max Displays	3	3

🎬

Media & Encoding

Hardware encoder: No NVENC (Fermi) (GeForce GTX 675M) vs NVENC (1st Gen) (GeForce GTX 645). Decoder: PureVideo HD VP4 vs PureVideo VP5. Supported codecs: H.264,VC-1,MPEG-2 (GeForce GTX 675M) vs MPEG-2,VC-1,H.264,MPEG-4 (GeForce GTX 645).

Feature	GeForce GTX 675M	GeForce GTX 645
Encoder	No NVENC (Fermi)	NVENC (1st Gen)
Decoder	PureVideo HD VP4	PureVideo VP5
Codecs	H.264,VC-1,MPEG-2	MPEG-2,VC-1,H.264,MPEG-4

🔌

Power & Dimensions

The GeForce GTX 675M draws 100W versus the GeForce GTX 645's 200W — a 66.7% difference. The GeForce GTX 675M is more power-efficient. Recommended PSU: 350W (GeForce GTX 675M) vs 300W (GeForce GTX 645). Power connectors: 1x 6-pin vs None. Typical load temperature: 82°C vs 80.

Feature	GeForce GTX 675M	GeForce GTX 645
TDP	100W-50%	200W
Recommended PSU	350W	300W-14%
Power Connector	1x 6-pin	None
Length	—	147mm
Height	—	111mm
Slots	0-100%	1
Temp (Load)	82°C	80-2%
Perf/Watt	18.6+98%	9.4