GeForce GTX 660M vs Iris Plus Graphics 645

Performance Spectrum - GPU

GeForce GTX 660M

50

1,452

+0.1%

GeForce RTX 2060 (móvel)

GeForce RTX 3070 Laptop GPU

TITAN V

Iris Plus Graphics 645

15

1,450

0.0%

Arc Graphics 130T

Arc A770M

Arc B580

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. The GeForce GTX 660M is positioned at rank #190 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 660M

#180

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

374%

#182

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

339%

#183

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

338%

#187

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

307%

#188

Radeon RX 6300

MSRP: $60|Avg: $40

305%

#190

GeForce GTX 660M

MSRP: N/A|Avg: N/A

100%

#195

GeForce GT625M

MSRP: N/A|Avg: $45

97%

#197

Qualcomm SD X Adreno X1-85 4.6 TFLOPS

MSRP: $250|Avg: $250

96%

#203

GeForce GT 730M

MSRP: N/A|Avg: $45

93%

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

⚠️ Generational Difference

The Iris Plus Graphics 645 is significantly newer (2019 vs 2012). The Iris Plus Graphics 645 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GTX 660M lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.

🚀 Performance Leadership

The GeForce GTX 660M is the superior choice for raw performance. It leads with a 0.1% higher G3D Mark score and 100+% more VRAM (2 GB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Iris Plus Graphics 645.

Insight	GeForce GTX 660M	Iris Plus Graphics 645
Performance	✅Leading raw performance (+0.1%)	❌Lower raw frame rates (-0.1%)
Longevity	🛑Obsolete Architecture (2012 / Kepler (2012−2018))	Generation 9.5 (2016−2020) (14nm)
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	✅ More VRAM (+100+%)	❌ Less VRAM capacity
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
Case Fit	—	—

💎 Value Proposition

While current pricing data is unavailable, the GeForce GTX 660M 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 660M Benchmark Check

Iris Plus Graphics 645 Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GTX 660M and Iris Plus Graphics 645

GeForce GTX 660M

The GeForce GTX 660M is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from 835 MHz to 950 MHz. It has 384 shading units. The thermal design power (TDP) is 50W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,452 points.

Iris Plus Graphics 645

The Iris Plus Graphics 645 is manufactured by Intel. It was released in October 7 2019. It features the Generation 9.5 architecture. The core clock ranges from 300 MHz to 1050 MHz. It has 384 shading units. The thermal design power (TDP) is 15W. Manufactured using 14 nm+++ process technology. G3D Mark benchmark score: 1,450 points.

⚡

Graphics Performance

The GeForce GTX 660M scores 1,452 and the Iris Plus Graphics 645 reaches 1,450 in the G3D Mark benchmark — just a 0.1% difference, making them near-identical in rasterization performance. The GeForce GTX 660M is built on Kepler while the Iris Plus Graphics 645 uses Generation 9.5, both on 28 nm vs 14 nm+++. Shader units: 384 (GeForce GTX 660M) vs 384 (Iris Plus Graphics 645). Raw compute: 0.7296 TFLOPS (GeForce GTX 660M) vs 0.8064 TFLOPS (Iris Plus Graphics 645). Boost clocks: 950 MHz vs 1050 MHz.

Feature	GeForce GTX 660M	Iris Plus Graphics 645
G3D Mark Score	1,452	1,450
Architecture	Kepler	Generation 9.5
Process Node	28 nm	14 nm+++
Shading Units	384	384
Compute (TFLOPS)	0.7296 TFLOPS	0.8064 TFLOPS+11%
Boost Clock	950 MHz	1050 MHz+11%
ROPs	16+167%	6
TMUs	32	48+50%

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GTX 660M	Iris Plus Graphics 645
Upscaling Tech	FSR 2.1 (Compatible)	FSR 1.0 (Software)
Frame Generation	FSR 3 (Compatible)	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	Standard

💾

Video Memory (VRAM)

The GeForce GTX 660M comes with 2 GB of VRAM, while the Iris Plus Graphics 645 has 0 MB. The GeForce GTX 660M offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs System.

Feature	GeForce GTX 660M	Iris Plus Graphics 645
VRAM Capacity	2 GB	Shared System RAM
Memory Type	GDDR5	Shared
Memory Bandwidth	Unknown	System
Bus Width	128-bit	System

🔌

Power & Dimensions

The GeForce GTX 660M draws 50W versus the Iris Plus Graphics 645's 15W — a 107.7% difference. The Iris Plus Graphics 645 is more power-efficient. Recommended PSU: 350W (GeForce GTX 660M) vs 1W (Iris Plus Graphics 645). Power connectors: 1x 6-pin vs Integrated.