GeForce GTX 645 vs Radeon Vega 11

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.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar

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 Radeon Vega 11 is significantly newer (2018 vs 2010). The Radeon Vega 11 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GTX 645 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.

🚀 Performance Leadership

The GeForce GTX 645 is the superior choice for raw performance. It leads with a 1% higher G3D Mark score and 100+% more VRAM (1 GB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon Vega 11.

Insight	GeForce GTX 645	Radeon Vega 11
Performance	✅Leading raw performance (+1%)	❌Lower raw frame rates (-1%)
Longevity	🛑Obsolete Architecture (2010 / Fermi (2010−2014))	🛑Obsolete Architecture (2018 / GCN 5.0 (2017−2020))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	✅ More VRAM (+100+%)	❌ Less VRAM capacity
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
Case Fit	📏 Compact / SFF Friendly	—

💎 Value Proposition

The GeForce GTX 645 offers a compelling cost-to-performance ratio. Priced at $20 versus $40 for the Radeon Vega 11, it costs 50% less. While it maintains basic entry-level capabilities, this results in a 102% higher cost efficiency score.

Insight	GeForce GTX 645	Radeon Vega 11
Cost Efficiency	✅Better overall value (+102%)	❌Lower cost efficiency
Upfront Cost	✅More affordable ($20)	⚠️Higher upfront cost ($40)

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 645 Benchmark Check

Radeon Vega 11 Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GTX 645 and Radeon Vega 11

GeForce GTX 645

The GeForce GTX 645 is manufactured by NVIDIA. It was released in May 31 2010. It features the Fermi architecture. The core clock speed is 607 MHz. It has 352 shading units. The thermal design power (TDP) is 200W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,880 points. Launch price was $279.

Radeon Vega 11

The Radeon Vega 11 is manufactured by AMD. It was released in May 10 2018. It features the GCN 5.0 architecture. The core clock ranges from 300 MHz to 1251 MHz. It has 704 shading units. The thermal design power (TDP) is 35W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 1,861 points.

⚡

Graphics Performance

The GeForce GTX 645 scores 1,880 and the Radeon Vega 11 reaches 1,861 in the G3D Mark benchmark — just a 1% difference, making them near-identical in rasterization performance. The GeForce GTX 645 is built on Fermi while the Radeon Vega 11 uses GCN 5.0, both on 40 nm vs 14 nm. Shader units: 352 (GeForce GTX 645) vs 704 (Radeon Vega 11). Raw compute: 0.8554 TFLOPS (GeForce GTX 645) vs 1.761 TFLOPS (Radeon Vega 11).

Feature	GeForce GTX 645	Radeon Vega 11
G3D Mark Score	1,880+1%	1,861
Architecture	Fermi	GCN 5.0
Process Node	40 nm	14 nm
Shading Units	352	704+100%
Compute (TFLOPS)	0.8554 TFLOPS	1.761 TFLOPS+106%
ROPs	32+300%	8
TMUs	44	44

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GTX 645	Radeon Vega 11
Upscaling Tech	FSR 2.1 (Compatible)	FSR 1.0 (Software)
Frame Generation	FSR 3 (Compatible)	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

The GeForce GTX 645 comes with 1 GB of VRAM, while the Radeon Vega 11 has 0 MB. The GeForce GTX 645 offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs System.

Feature	GeForce GTX 645	Radeon Vega 11
VRAM Capacity	1 GB	Shared System RAM
Memory Type	GDDR5	Shared
Memory Bandwidth	Unknown	System
Bus Width	128-bit	System

🔌

Power & Dimensions

The GeForce GTX 645 draws 200W versus the Radeon Vega 11's 35W — a 140.4% difference. The Radeon Vega 11 is more power-efficient. Recommended PSU: 300W (GeForce GTX 645) vs 1W (Radeon Vega 11). Power connectors: None vs Integrated.

Feature	GeForce GTX 645	Radeon Vega 11
TDP	200W	35W-83%
Recommended PSU	300W	1W-100%
Power Connector	None	Integrated
Length	147mm	—
Height	111mm	—
Slots	1	—
Temp (Load)	80	—
Perf/Watt	9.4	53.2+466%

💰

Value Analysis

The GeForce GTX 645 launched at $150 MSRP and currently averages $20, while the Radeon Vega 11 launched at $150 and now averages $40. The GeForce GTX 645 costs 50% less ($20 savings) at current market prices. Performance per dollar (G3D Mark / price): 94.0 (GeForce GTX 645) vs 46.5 (Radeon Vega 11) — the GeForce GTX 645 offers 102.2% better value. The Radeon Vega 11 is the newer GPU (2018 vs 2010).