GeForce GT 645M vs Radeon HD 6770M

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 645M is positioned at rank 80 and the Radeon HD 6770M is on rank 164, so the GeForce GT 645M 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 645M

#25

Radeon RX 7600M XT

MSRP: $329|Avg: $300

94%

#70

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

230%

#72

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

208%

#73

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

208%

#77

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

189%

#78

Radeon RX 6300

MSRP: $60|Avg: $40

188%

#80

GeForce GT 645M

MSRP: N/A|Avg: N/A

100%

#82

Arc 7-Core iGPU

MSRP: $199|Avg: N/A

99%

#87

Radeon RX 560 (móvel)

MSRP: $99|Avg: $50

96%

#92

Radeon RX 550 (móvel)

MSRP: $79|Avg: $40

94%

#95

GeForce GT 555M

MSRP: N/A|Avg: $35

92%

Based on actual market prices and performance benchmarks.

Performance Per Dollar Radeon HD 6770M

#43

Radeon RX 8060S

MSRP: $500|Avg: $500

100%

#47

Radeon RX 6700S

MSRP: $479|Avg: $300

98%

#154

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

338%

#156

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

306%

#157

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

306%

#161

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

278%

#162

Radeon RX 6300

MSRP: $60|Avg: $40

276%

#164

Radeon HD 6770M

MSRP: N/A|Avg: N/A

100%

#172

GeForce GT 540M

MSRP: N/A|Avg: $30

98%

#177

GeForce GTX 860M

MSRP: N/A|Avg: $50

96%

#179

Radeon R9 360

MSRP: $99|Avg: $55

95%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The Radeon HD 6770M is the superior choice for raw performance. It leads with a 2% higher G3D Mark score. However, the GeForce GT 645M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.

Insight	GeForce GT 645M	Radeon HD 6770M
Performance	❌Lower raw frame rates (-2%)	✅Leading raw performance (+2%)
Longevity	🛑Obsolete Architecture (2012 / Kepler (2012−2018))	🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	✅ More VRAM (+100%)	❌ Less VRAM capacity
Efficiency	Normal Efficiency	Normal Efficiency
Case Fit	—	—

💎 Value Proposition

While current pricing data is unavailable, the Radeon HD 6770M 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 645M Benchmark Check

Radeon HD 6770M Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GT 645M and Radeon HD 6770M

GeForce GT 645M

The GeForce GT 645M is manufactured by NVIDIA. It was released in October 1 2012. It features the Kepler architecture. The core clock speed is Up to 710 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 945 points.

Radeon HD 6770M

The Radeon HD 6770M is manufactured by AMD. It was released in January 4 2011. It features the TeraScale 2 architecture. The core clock speed is 725 MHz. It has 480 shading units. The thermal design power (TDP) is 35W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 964 points.

⚡

Graphics Performance

The GeForce GT 645M scores 945 and the Radeon HD 6770M reaches 964 in the G3D Mark benchmark — just a 2% difference, making them near-identical in rasterization performance. The GeForce GT 645M is built on Kepler while the Radeon HD 6770M uses TeraScale 2, both on 28 nm vs 40 nm. Shader units: 384 (GeForce GT 645M) vs 480 (Radeon HD 6770M). Raw compute: 0.5445 TFLOPS (GeForce GT 645M) vs 0.696 TFLOPS (Radeon HD 6770M).

Feature	GeForce GT 645M	Radeon HD 6770M
G3D Mark Score	945	964+2%
Architecture	Kepler	TeraScale 2
Process Node	28 nm	40 nm
Shading Units	384	480+25%
Compute (TFLOPS)	0.5445 TFLOPS	0.696 TFLOPS+28%
ROPs	16+100%	8
TMUs	32+33%	24
L1 Cache	32 KB	48 KB+50%
L2 Cache	256 KB	256 KB

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GT 645M	Radeon HD 6770M
Upscaling Tech	FSR 1.0 (Software)	FSR 1.0 (Software)
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

The GeForce GT 645M comes with 2 GB of VRAM, while the Radeon HD 6770M has 1 GB. The GeForce GT 645M offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs System.

Feature	GeForce GT 645M	Radeon HD 6770M
VRAM Capacity	2 GB+100%	1 GB
Memory Type	GDDR5	Shared
Memory Bandwidth	Unknown	System
Bus Width	128-bit	System
L2 Cache	256 KB	256 KB

🔌

Power & Dimensions

The GeForce GT 645M draws 32W versus the Radeon HD 6770M's 35W — a 9% difference. The GeForce GT 645M is more power-efficient. Recommended PSU: 350W (GeForce GT 645M) vs 350W (Radeon HD 6770M). Power connectors: PCIe-powered vs 1x 6-pin.