Radeon HD 7660G + HD 7670M Dual vs GeForce GT 640M LE

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 Radeon HD 7660G + HD 7670M Dual is positioned at rank 493 and the GeForce GT 640M LE is on rank 386, so the GeForce GT 640M LE 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 Radeon HD 7660G + HD 7670M Dual

#483

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

2305%

#485

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

2090%

#486

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

2084%

#490

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

1895%

#491

Radeon RX 6300

MSRP: $60|Avg: $40

1882%

#493

Radeon HD 7660G + HD 7670M Dual

MSRP: $150|Avg: $150

100%

#494

Radeon HD 7640G + HD 7600M Dual

MSRP: $150|Avg: $50

100%

#495

Radeon HD 7640G + HD 8670M Dual

MSRP: $150|Avg: $35

96%

#496

Radeon HD 8180

MSRP: $30|Avg: $5

96%

#498

Radeon R8 M535DX

MSRP: $150|Avg: $150

95%

#500

Radeon R5 230

MSRP: $50|Avg: $25

94%

#501

GeForce 9300 GE

MSRP: $23|Avg: $25

94%

#502

Mobility Radeon HD 5450

MSRP: $49|Avg: $15

93%

#503

Radeon HD 8650G + 8570M Dual

MSRP: $150|Avg: $30

93%

#504

GeForce 800A

MSRP: $100|Avg: $30

92%

#505

Mobility Radeon HD 4850

MSRP: $199|Avg: $20

92%

#506

Radeon HD 7520G + HD 8750M Dual

MSRP: $150|Avg: $150

92%

#507

Radeon HD 8610G + HD 8500M Dual

MSRP: $150|Avg: $30

92%

#508

Radeon R7 M460

MSRP: $250|Avg: $250

91%

Based on actual market prices and performance benchmarks.

Performance Per Dollar GeForce GT 640M LE

#376

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

1246%

#378

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

1130%

#379

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

1127%

#383

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

1025%

#384

Radeon RX 6300

MSRP: $60|Avg: $40

1018%

#386

GeForce GT 640M LE

MSRP: $80|Avg: $20

100%

#387

Radeon Vega 8 Ryzen 5 3450U

MSRP: $150|Avg: $40

100%

#388

GeForce GT 755M Mac Edition

MSRP: $200|Avg: $50

99%

#389

HD Graphics 520

MSRP: $100|Avg: $35

99%

#390

Radeon HD 8600/8700M

MSRP: N/A|Avg: $30

99%

#391

Radeon R9 M395X

MSRP: $600|Avg: $150

98%

#393

Radeon R9 M485X

MSRP: $450|Avg: $150

97%

#394

Radeon HD 8570D + HD 6670 Dual

MSRP: $150|Avg: $100

97%

#395

Radeon HD 6650A

MSRP: $100|Avg: $50

96%

#396

GeForce 920A

MSRP: $100|Avg: $15

95%

#397

GeForce 930A

MSRP: $150|Avg: $20

95%

#398

Mobility Radeon HD 4650

MSRP: $49|Avg: $15

94%

#400

Radeon R9 M290X

MSRP: $400|Avg: $60

92%

#401

Radeon HD 7670

MSRP: $100|Avg: $25

92%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The Radeon HD 7660G + HD 7670M Dual is the superior choice for raw performance. It leads with a 1.4% higher G3D Mark score. However, the GeForce GT 640M LE offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.

Insight	Radeon HD 7660G + HD 7670M Dual	GeForce GT 640M LE
Performance	✅Leading raw performance (+1.4%)	❌Lower raw frame rates (-1.4%)
Longevity	🛑Obsolete Architecture (2013 / Legacy)	🛑Obsolete Architecture (2012 / Kepler (2012−2018))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+300%)
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
Case Fit	📏 Compact / SFF Friendly	—

💎 Value Proposition

The GeForce GT 640M LE offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GT 640M LE holds the technical lead. Priced at $20 (vs $150), it costs 87% less, resulting in a 639.4% higher cost efficiency score.

Insight	Radeon HD 7660G + HD 7670M Dual	GeForce GT 640M LE
Cost Efficiency	❌Lower cost efficiency	✅Better overall value (+639.4%)
Upfront Cost	⚠️Higher upfront cost ($150)	✅More affordable ($20)

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.

Radeon HD 7660G + HD 7670M Dual Benchmark Check

GeForce GT 640M LE Benchmark Check

Technical Specifications

Side-by-side comparison of Radeon HD 7660G + HD 7670M Dual and GeForce GT 640M LE

Radeon HD 7660G + HD 7670M Dual

The Radeon HD 7660G + HD 7670M Dual is manufactured by AMD. It was released in August 1 2013. The core clock speed is 720 / 775 MHz. It has 768 shading units. The thermal design power (TDP) is 50W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 707 points.

GeForce GT 640M LE

The GeForce GT 640M LE is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 625 MHz to 645 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 697 points.

⚡

Graphics Performance

The Radeon HD 7660G + HD 7670M Dual scores 707 and the GeForce GT 640M LE reaches 697 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. Shader units: 768 (Radeon HD 7660G + HD 7670M Dual) vs 384 (GeForce GT 640M LE).

Feature	Radeon HD 7660G + HD 7670M Dual	GeForce GT 640M LE
G3D Mark Score	707+1%	697
Process Node	28 nm	28 nm
Shading Units	768+100%	384

✨

Advanced Features (DLSS/FSR)

Feature	Radeon HD 7660G + HD 7670M Dual	GeForce GT 640M LE
Upscaling Tech	FSR 1.0 (Software)	FSR 1.0 (Software)
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	Standard

💾

Video Memory (VRAM)

The Radeon HD 7660G + HD 7670M Dual comes with 512 MB of VRAM, while the GeForce GT 640M LE has 2 GB. The GeForce GT 640M LE offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit.

Feature	Radeon HD 7660G + HD 7670M Dual	GeForce GT 640M LE
VRAM Capacity	0.5 GB	2 GB+300%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit

🖥️

Display & API Support

DirectX support: 11_1 (Radeon HD 7660G + HD 7670M Dual) vs 12 (11_0) (GeForce GT 640M LE). Maximum simultaneous displays: 0 vs 4.

Feature	Radeon HD 7660G + HD 7670M Dual	GeForce GT 640M LE
DirectX	11_1	12 (11_0)+9%
Max Displays	0	4

🎬

Media & Encoding

Hardware encoder: UVD 3 (Radeon HD 7660G + HD 7670M Dual) vs NVENC 1st Gen (GeForce GT 640M LE). Decoder: UVD 3 vs VP5.

Feature	Radeon HD 7660G + HD 7670M Dual	GeForce GT 640M LE
Encoder	UVD 3	NVENC 1st Gen
Decoder	UVD 3	VP5
Codecs	—	H.264,MPEG-2,VC-1,MPEG-4

🔌

Power & Dimensions

The Radeon HD 7660G + HD 7670M Dual draws 50W versus the GeForce GT 640M LE's 32W — a 43.9% difference. The GeForce GT 640M LE is more power-efficient. Recommended PSU: 350W (Radeon HD 7660G + HD 7670M Dual) vs 350W (GeForce GT 640M LE). Power connectors: 1x 6-pin vs PCIe-powered. Card length: 1mm vs 0mm, occupying 0 vs 0 slots.

Feature	Radeon HD 7660G + HD 7670M Dual	GeForce GT 640M LE
TDP	50W	32W-36%
Recommended PSU	350W	350W
Power Connector	1x 6-pin	PCIe-powered
Length	1mm	0mm
Height	—	0mm
Slots	0	0
Temp (Load)	—	85
Perf/Watt	14.1	21.8+55%

💰

Value Analysis

The Radeon HD 7660G + HD 7670M Dual launched at $150 MSRP and currently averages $150, while the GeForce GT 640M LE launched at $80 and now averages $20. The GeForce GT 640M LE costs 86.7% less ($130 savings) at current market prices. Performance per dollar (G3D Mark / price): 4.7 (Radeon HD 7660G + HD 7670M Dual) vs 34.9 (GeForce GT 640M LE) — the GeForce GT 640M LE offers 642.6% better value. The Radeon HD 7660G + HD 7670M Dual is the newer GPU (2013 vs 2012).