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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, raw graphics performance, VRAM, feature set, power efficiency, pricing context, and long-term value so you can see which GPU actually makes more sense.

GeForce GTX 645

2010

Why buy it

✅100+% more VRAM for high-resolution textures and newer games (1 GB vs Unknown).
✅Less risky long-term buy than Radeon Vega 11: it remains the more sensible modern option while Radeon Vega 11 is already obsolete for modern gaming.

Trade-offs

❌Very weak future-proofing: 2010-era hardware with 1 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌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

❌Less VRAM, with Unknown vs 1 GB for high-resolution textures and newer games.
❌Very weak future-proofing: 2018-era hardware with Unknown of VRAM is already obsolete for modern gaming and is hard to recommend today.

GeForce GTX 645

2010

Radeon Vega 11

2018

Why buy it

✅100+% more VRAM for high-resolution textures and newer games (1 GB vs Unknown).
✅Less risky long-term buy than Radeon Vega 11: it remains the more sensible modern option while Radeon Vega 11 is already obsolete for modern gaming.

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

❌Very weak future-proofing: 2010-era hardware with 1 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌471.4% higher power demand at 200W vs 35W.

Trade-offs

❌Less VRAM, with Unknown vs 1 GB for high-resolution textures and newer games.
❌Very weak future-proofing: 2018-era hardware with Unknown of VRAM is already obsolete for modern gaming and is hard to recommend today.

Quick Answers

So, is GeForce GTX 645 better than Radeon Vega 11?

Yes, but this is not really about a huge raw performance gap. The broader synthetic picture is also very close at 1,880 vs 1,861 in G3D Mark. The bigger reason to prefer GeForce GTX 645 is the overall package: you are getting no meaningful modern upscaling stack.

Which one is more future-proof for 2026 and beyond?

GeForce GTX 645 is the more future-proof choice for 2026 and beyond. You are getting more VRAM at 1 GB instead of Unknown and the stronger feature stack with no meaningful modern upscaling stack instead of FSR upscaling. That extra memory headroom makes it the safer pick for newer games, heavier textures, and higher settings over time.

Which one is the smarter buy today, not just the cheaper card?

GeForce GTX 645 can still make sense if you find it at the right price, especially around $150 MSRP. GeForce GTX 645 is still the smarter buy for most people, though, because the raw performance is close while the overall package is cleaner. GeForce GTX 645 is in basically the same MSRP band at $150 MSRP versus $150 MSRP, and you are getting 1.0% higher G3D Mark. Radeon Vega 11 is the newer 2018 card, so it still has a real case if you care more about newer architecture and lower power draw (35W vs 200W) than about squeezing out the strongest gaming value today.

When does Radeon Vega 11 make more sense than GeForce GTX 645?

Yes. Radeon Vega 11 is still an excellent gaming GPU in 2026: it is still fine for 1080p, but 1440p and especially 4K require more compromise. It makes more sense if your priority is newer architecture, lower power draw (35W vs 200W), and staying closer to $150 MSRP more than squeezing out the extra headroom of GeForce GTX 645. The trade-off is that GeForce GTX 645 currently gives you 1.0% higher G3D Mark. It only holds a slight 1% edge in G3D-per-dollar, so the value lead is real but narrow.

Games Benchmarks

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 9800X3D 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

Path of Exile 2

Preset	GeForce GTX 645	Radeon Vega 11
1080p
low	66 FPS	34 FPS
medium	54 FPS	24 FPS
high	38 FPS	17 FPS
ultra	26 FPS	9 FPS
1440p
low	52 FPS	28 FPS
medium	43 FPS	17 FPS
high	27 FPS	9 FPS
ultra	18 FPS	5 FPS
4K
low	20 FPS	10 FPS
medium	19 FPS	6 FPS
high	12 FPS	4 FPS
ultra	10 FPS	3 FPS

Open GeForce GTX 645 Open Radeon Vega 11

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	GeForce GTX 645	Radeon Vega 11
1080p
low	85 FPS	73 FPS
medium	62 FPS	48 FPS
high	50 FPS	32 FPS
ultra	38 FPS	22 FPS
1440p
low	49 FPS	50 FPS
medium	33 FPS	28 FPS
high	23 FPS	20 FPS
ultra	18 FPS	15 FPS
4K
low	23 FPS	23 FPS
medium	16 FPS	15 FPS
high	12 FPS	12 FPS
ultra	9 FPS	9 FPS

Open GeForce GTX 645 Open Radeon Vega 11

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	GeForce GTX 645	Radeon Vega 11
1080p
low	85 FPS	84 FPS
medium	68 FPS	67 FPS
high	56 FPS	56 FPS
ultra	42 FPS	42 FPS
1440p
low	63 FPS	63 FPS
medium	51 FPS	50 FPS
high	42 FPS	42 FPS
ultra	32 FPS	31 FPS
4K
low	42 FPS	42 FPS
medium	34 FPS	33 FPS
high	28 FPS	28 FPS
ultra	21 FPS	21 FPS

Open GeForce GTX 645 Open Radeon Vega 11

League of Legends

League of Legends

Valorant

Preset	GeForce GTX 645	Radeon Vega 11
1080p
low	85 FPS	84 FPS
medium	68 FPS	67 FPS
high	56 FPS	56 FPS
ultra	42 FPS	42 FPS
1440p
low	63 FPS	63 FPS
medium	51 FPS	50 FPS
high	42 FPS	42 FPS
ultra	32 FPS	31 FPS
4K
low	42 FPS	42 FPS
medium	34 FPS	33 FPS
high	28 FPS	28 FPS
ultra	21 FPS	21 FPS

Open GeForce GTX 645 Open Radeon Vega 11

Valorant

Valorant

Check FPS for your specific build

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.

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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 gives access to NVIDIA DLSS (Deep Learning Super Sampling), widely regarding as the superior upscaling method for image quality. The Radeon Vega 11 relies on FSR (FidelityFX Super Resolution), which is capable but generally slightly noisier than DLSS in motion.

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 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

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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%

💰

Value Analysis

The GeForce GTX 645 launched at $150 MSRP, 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 Radeon Vega 11 is the newer GPU (2018 vs 2010).