Radeon Vega 11 vs GeForce GTX 645

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	Radeon Vega 11	GeForce GTX 645
Performance	❌Lower raw frame rates (-1%)	✅Leading raw performance (+1%)
Longevity	🛑Obsolete Architecture (2018 / GCN 5.0 (2017−2020))	🛑Obsolete Architecture (2010 / Fermi (2010−2014))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+100+%)
Efficiency	💡 Excellent Perf/Watt	⚡ Higher Power Consumption
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	Radeon Vega 11	GeForce GTX 645
Cost Efficiency	❌Lower cost efficiency	✅Better overall value (+102%)
Upfront Cost	⚠️Higher upfront cost ($40)	✅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 Vega 11 Benchmark Check

GeForce GTX 645 Benchmark Check

Technical Specifications

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

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.

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.

⚡

Graphics Performance

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

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

✨

Advanced Features (DLSS/FSR)

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

💾

Video Memory (VRAM)

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

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

🔌

Power & Dimensions

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

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

💰

Value Analysis

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