GeForce GTX 670MX SLI vs Radeon RX 640

GeForce GTX 670MX SLI

2012Core: 600 MHz

Radeon RX 640

2019Core: 1082 MHzBoost: 1218 MHz

Performance Spectrum - GPU

GeForce GTX 670MX SLI

150

2,075

0.0%

GeForce GTX 1650 Ti with Max-Q Design

2,172

+4.7%

Radeon RX 6750 GRE 12GB

About G3D Mark

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 GTX 670MX SLI is positioned at rank 364 and the Radeon RX 640 is on rank 323, so the Radeon RX 640 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 GTX 670MX SLI

#354

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

1046%

#356

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

948%

#357

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

946%

#361

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

860%

#362

Radeon RX 6300

MSRP: $60|Avg: $40

854%

#364

GeForce GTX 670MX SLI

MSRP: N/A|Avg: N/A

100%

#367

GeForce 615

MSRP: $50|Avg: $15

97%

#369

Radeon Ryzen 7 6800HS

MSRP: $600|Avg: $600

97%

#370

GeForce GT 730A

MSRP: $75|Avg: $20

95%

#372

Radeon HD 7660G

MSRP: $50|Avg: $50

93%

#373

Radeon R7 M270DX

MSRP: $100|Avg: $20

93%

#374

Radeon HD 6670/7670

MSRP: $99|Avg: $40

92%

#375

Radeon 620

MSRP: $100|Avg: $50

92%

#376

Radeon R5 435

MSRP: $80|Avg: $80

92%

#377

Radeon R9 M470X

MSRP: $350|Avg: $350

89%

#379

Radeon R9 M380

MSRP: $300|Avg: $300

88%

Based on actual market prices and performance benchmarks.

Performance Per Dollar Radeon RX 640

#313

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

795%

#315

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

720%

#316

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

719%

#320

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

653%

#321

Radeon RX 6300

MSRP: $60|Avg: $40

649%

#323

Radeon RX 640

MSRP: $159|Avg: $55

100%

#326

Iris Pro Graphics P580

MSRP: $150|Avg: $60

99%

#327

Radeon E8870PCIe

MSRP: $250|Avg: $200

99%

#330

Arc Graphics 140T

MSRP: $350|Avg: $300

94%

#331

Radeon 680M

MSRP: N/A|Avg: $80

94%

#333

GeForce 730A

MSRP: $60|Avg: $20

93%

#334

GeForce GT 745A

MSRP: $99|Avg: $20

91%

#335

GeForce 710A

MSRP: $35|Avg: $62

91%

#336

Radeon HD 8670D + HD 6670 Dual

MSRP: $100|Avg: $10

89%

#338

GeForce MX230

MSRP: $150|Avg: $150

89%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

⚠️ Generational Difference

The Radeon RX 640 is significantly newer (2019 vs 2012). The Radeon RX 640 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GTX 670MX SLI lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.

🚀 Performance Leadership

The Radeon RX 640 is the superior choice for raw performance. It leads with a 4.7% higher G3D Mark score and 100% more VRAM (4 GB vs 2 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GTX 670MX SLI.

Insight	GeForce GTX 670MX SLI	Radeon RX 640
Performance	❌Lower raw frame rates (-4.7%)	✅Leading raw performance (+4.7%)
Longevity	🛑Obsolete Architecture (2012 / Kepler (2012−2018))	GCN 4.0 (2016−2020) (14nm)
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+100%)
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
Case Fit	—	—

💎 Value Proposition

While current pricing data is unavailable, the Radeon RX 640 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 670MX SLI Benchmark Check

Radeon RX 640 Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GTX 670MX SLI and Radeon RX 640

GeForce GTX 670MX SLI

The GeForce GTX 670MX SLI is manufactured by NVIDIA. It was released in October 1 2012. It features the Kepler architecture. The core clock speed is 600 MHz. It has 1920 shading units. The thermal design power (TDP) is 150W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,075 points.

Radeon RX 640

The Radeon RX 640 is manufactured by AMD. It was released in May 13 2019. It features the GCN 4.0 architecture. The core clock ranges from 1082 MHz to 1218 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 2,172 points.

⚡

Graphics Performance

The GeForce GTX 670MX SLI scores 2,075 and the Radeon RX 640 reaches 2,172 in the G3D Mark benchmark — just a 4.7% difference, making them near-identical in rasterization performance. The GeForce GTX 670MX SLI is built on Kepler while the Radeon RX 640 uses GCN 4.0, both on 28 nm vs 14 nm. Shader units: 1,920 (GeForce GTX 670MX SLI) vs 640 (Radeon RX 640).

Feature	GeForce GTX 670MX SLI	Radeon RX 640
G3D Mark Score	2,075	2,172+5%
Architecture	Kepler	GCN 4.0
Process Node	28 nm	14 nm
Shading Units	1920+200%	640

✨

Advanced Features (DLSS/FSR)

A critical advantage for the Radeon RX 640 is support for FSR 3 / AFMF. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GeForce GTX 670MX SLI lacks specific hardware/driver support for this native frame generation tier.

Feature	GeForce GTX 670MX SLI	Radeon RX 640
Upscaling Tech	FSR 2.1 (Compatible)	FSR 3 (Native)
Frame Generation	FSR 3 (Compatible)	FSR 3 / AFMF (Driver)
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

The GeForce GTX 670MX SLI comes with 2 GB of VRAM, while the Radeon RX 640 has 4 GB. The Radeon RX 640 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit.

Feature	GeForce GTX 670MX SLI	Radeon RX 640
VRAM Capacity	2 GB	4 GB+100%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit

🖥️

Display & API Support

DirectX support: 12 (11_0) (GeForce GTX 670MX SLI) vs 12 (FL 12_0) (Radeon RX 640). Vulkan: 1.2 vs 1.3. OpenGL: 4.2 vs 4.6. Maximum simultaneous displays: 4 vs 6.

Feature	GeForce GTX 670MX SLI	Radeon RX 640
DirectX	12 (11_0)	12 (FL 12_0)
Vulkan	1.2	1.3+8%
OpenGL	4.2	4.6+10%
Max Displays	4	6+50%

🎬

Media & Encoding

Hardware encoder: NVENC 1st Gen (GeForce GTX 670MX SLI) vs VCE 3.4 (Radeon RX 640). Decoder: PureVideo HD VP5 vs UVD 6.3. Supported codecs: H.264,VC-1,MPEG-2,MPEG-4 ASP (GeForce GTX 670MX SLI) vs H.264,H.265/HEVC (Radeon RX 640).

Feature	GeForce GTX 670MX SLI	Radeon RX 640
Encoder	NVENC 1st Gen	VCE 3.4
Decoder	PureVideo HD VP5	UVD 6.3
Codecs	H.264,VC-1,MPEG-2,MPEG-4 ASP	H.264,H.265/HEVC

🔌

Power & Dimensions

The GeForce GTX 670MX SLI draws 150W versus the Radeon RX 640's 50W — a 100% difference. The Radeon RX 640 is more power-efficient. Recommended PSU: 350W (GeForce GTX 670MX SLI) vs 350W (Radeon RX 640). Power connectors: 1x 6-pin vs PCIe-powered.