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.

GeForce GTX 645 vs Radeon Vega 11 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.

Search any supported game below to compare 1080p FPS for both components.

GeForce GTX 645 vs Radeon Vega 11: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

GeForce GTX 645

2010

Why buy it

✅32.6% more average FPS across 50 tracked games in our benchmark data.
✅100+% more VRAM for high-resolution textures and newer games (1 GB vs Unknown).
✅Radeon Vega 11 is already obsolete for modern gaming, so GeForce GTX 645 is the less risky modern option long term.

Trade-offs

❌2010 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌471.4% higher power demand at 200W vs 35W.

Radeon Vega 11

2018

Why buy it

✅Draws 35W instead of 200W, a 165W reduction.
✅More future proof: GCN 5.0 (2017−2020) on 14nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than GeForce GTX 645 across 50 tracked games in our benchmark data.
❌Less VRAM, with Unknown vs 1 GB for high-resolution textures and newer games.
❌2018 hardware with Unknown of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Quick Answers

Which GPU is faster for gaming right now?

GeForce GTX 645 is the faster gaming card right now. In our data, it leads by 32.6% in average FPS across 50 tracked games in our benchmark data and by 1% in PassMark G3D (1,880 vs 1,861), so the answer here is pretty clean.

Which GPU is the safer long-term pick for 2026 and beyond?

GeForce GTX 645 is the safer long-term pick for 2026 and beyond. The case is simple: 1 GB vs Unknown of VRAM. That gives it more room for heavier textures and higher settings over time.

Which GPU is the better buy today?

GeForce GTX 645 makes the most sense to buy today. It is priced the same on MSRP at $150 vs $150, and it leads G3D-per-dollar by 1% (12.5 vs 12.4), so the value case lines up with the gaming result.

GeForce GTX 645 vs Radeon Vega 11 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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.

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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

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Advanced Features (DLSS/FSR)

The GeForce GTX 645 gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon Vega 11 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce GTX 645	Radeon Vega 11
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	AMD Anti-Lag

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Video Memory (VRAM)

The GeForce GTX 645 has 1 GB of VRAM, while the Radeon Vega 11 carries 0 MB. GeForce GTX 645 gives you 100+% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce GTX 645 and System on the Radeon Vega 11.

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

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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%

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Value Analysis

At launch, the GeForce GTX 645 came in at $150, while the Radeon Vega 11 launched at $150. Performance per dollar on MSRP (G3D Mark / MSRP): 12.5 (GeForce GTX 645) vs 12.4 (Radeon Vega 11) — the GeForce GTX 645 offers 0.8% better value. The newer card here is Radeon Vega 11 (2018 vs 2010).

Feature	GeForce GTX 645	Radeon Vega 11
MSRP	$150	$150
Performance per Dollar	12.5	12.4
Codename	GF100	Raven
Release	May 31 2010	May 10 2018
Ranking	#618	#673

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