GeForce GT 645M vs Radeon R7 M270DX

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 R7 M270DX is on rank 372, 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 R7 M270DX

#361

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

1129%

#363

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

1023%

#364

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

1020%

#368

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

928%

#369

Radeon RX 6300

MSRP: $60|Avg: $40

922%

#371

Radeon HD 7660G

MSRP: $50|Avg: $50

100%

#372

Radeon R7 M270DX

MSRP: $100|Avg: $20

100%

#373

Radeon HD 6670/7670

MSRP: $99|Avg: $40

99%

#374

Radeon 620

MSRP: $100|Avg: $50

99%

#375

Radeon R5 435

MSRP: $80|Avg: $80

99%

#376

Radeon R9 M470X

MSRP: $350|Avg: $350

96%

#378

Radeon R9 M380

MSRP: $300|Avg: $300

95%

#380

Radeon HD 7640G

MSRP: $50|Avg: $50

94%

#383

Radeon R7 M465

MSRP: $120|Avg: $35

92%

#385

GeForce GT 640M LE

MSRP: $80|Avg: $20

91%

#386

Radeon Vega 8 Ryzen 5 3450U

MSRP: $150|Avg: $40

90%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The Radeon R7 M270DX is the superior choice for raw performance. It leads with a 1.8% 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 R7 M270DX
Performance	❌Lower raw frame rates (-1.8%)	✅Leading raw performance (+1.8%)
Longevity	🛑Obsolete Architecture (2012 / Kepler (2012−2018))	🛑Obsolete Architecture (2014 / GCN 3.0 (2014−2019))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	✅ More VRAM (+300%)	❌ Less VRAM capacity
Efficiency	💡 Excellent Perf/Watt	⚡ Higher Power Consumption
Case Fit	—	—

💎 Value Proposition

While current pricing data is unavailable, the Radeon R7 M270DX 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 R7 M270DX Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GT 645M and Radeon R7 M270DX

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 R7 M270DX

The Radeon R7 M270DX is manufactured by AMD. It was released in June 11 2014. It features the GCN 3.0 architecture. The core clock ranges from 900 MHz to 940 MHz. It has 384 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 962 points.

⚡

Graphics Performance

The GeForce GT 645M scores 945 and the Radeon R7 M270DX reaches 962 in the G3D Mark benchmark — just a 1.8% difference, making them near-identical in rasterization performance. The GeForce GT 645M is built on Kepler while the Radeon R7 M270DX uses GCN 3.0, both on a 28 nm process. Shader units: 384 (GeForce GT 645M) vs 384 (Radeon R7 M270DX). Raw compute: 0.5445 TFLOPS (GeForce GT 645M) vs 0.7219 TFLOPS (Radeon R7 M270DX).

Feature	GeForce GT 645M	Radeon R7 M270DX
G3D Mark Score	945	962+2%
Architecture	Kepler	GCN 3.0
Process Node	28 nm	28 nm
Shading Units	384	384
Compute (TFLOPS)	0.5445 TFLOPS	0.7219 TFLOPS+33%
ROPs	16+100%	8
TMUs	32+33%	24
L1 Cache	32 KB	96 KB+200%
L2 Cache	256 KB	256 KB

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GT 645M	Radeon R7 M270DX
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 R7 M270DX has 512 MB. The GeForce GT 645M offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit.

Feature	GeForce GT 645M	Radeon R7 M270DX
VRAM Capacity	2 GB+300%	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	256 KB	256 KB

🔌

Power & Dimensions

The GeForce GT 645M draws 32W versus the Radeon R7 M270DX's 75W — a 80.4% difference. The GeForce GT 645M is more power-efficient. Recommended PSU: 350W (GeForce GT 645M) vs 350W (Radeon R7 M270DX). Power connectors: PCIe-powered vs Mobile.