GeForce GTX 645 vs Radeon R7 450

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 R7 450 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 R7 450: 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

✅96.9% more average FPS across 50 tracked games in our benchmark data.
✅Costs $69 less on MSRP ($150 MSRP vs $219 MSRP).
✅Delivers 45.5% more G3D Mark for each dollar spent, at 12.5 vs 8.6 G3D/$ ($150 MSRP vs $219 MSRP).

Trade-offs

❌Less VRAM, with 1 GB vs 2 GB for high-resolution textures and newer games.
❌2010 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌263.6% higher power demand at 200W vs 55W.

Radeon R7 450

2016

Why buy it

✅100% more VRAM for high-resolution textures and newer games (2 GB vs 1 GB).
✅Draws 55W instead of 200W, a 145W reduction.
✅More future proof: GCN 1.0 (2012−2020) on 28nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than GeForce GTX 645 across 50 tracked games in our benchmark data.
❌2016 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌
46% HIGHER MSRP
$219 MSRPvs$150 MSRP
❌Lower G3D Mark per dollar, at 8.6 vs 12.5 G3D/$ ($219 MSRP vs $150 MSRP).

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 96.9% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward Radeon R7 450 instead at 1,887 vs 1,880, so for this question the real-game FPS result matters more than the synthetic split.

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 because it comes out ahead on the available hardware-headroom signals for this matchup.

Which GPU is the better buy today?

GeForce GTX 645 makes the most sense to buy today. It is $69 cheaper on MSRP at $150 vs $219, and it leads G3D-per-dollar by 45.5% (12.5 vs 8.6), so the value case lines up with the gaming result.

GeForce GTX 645 vs Radeon R7 450 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 R7 450

The Radeon R7 450 is manufactured by AMD. It was released in July 6 2016. It features the GCN 1.0 architecture. The core clock speed is 800 MHz. It has 512 shading units. The thermal design power (TDP) is 55W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,887 points.

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Graphics Performance

The GeForce GTX 645 scores 1,880 and the Radeon R7 450 reaches 1,887 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The GeForce GTX 645 is built on Fermi while the Radeon R7 450 uses GCN 1.0, both on 40 nm vs 28 nm. Shader units: 352 (GeForce GTX 645) vs 512 (Radeon R7 450). Raw compute: 0.8554 TFLOPS (GeForce GTX 645) vs 0.8192 TFLOPS (Radeon R7 450).

Feature	GeForce GTX 645	Radeon R7 450
G3D Mark Score	1,880	1,887
Architecture	Fermi	GCN 1.0
Process Node	40 nm	28 nm
Shading Units	352	512+45%
Compute (TFLOPS)	0.8554 TFLOPS+4%	0.8192 TFLOPS
ROPs	32+100%	16
TMUs	44+38%	32
L1 Cache	704 KB+450%	128 KB
L2 Cache	512 KB+100%	256 KB

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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 R7 450 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce GTX 645	Radeon R7 450
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 R7 450 carries 2 GB. Radeon R7 450 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 128-bit on the Radeon R7 450. L2 Cache: 512 KB (GeForce GTX 645) vs 256 KB (Radeon R7 450) — the GeForce GTX 645 has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GTX 645	Radeon R7 450
VRAM Capacity	1 GB	2 GB+100%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	512 KB+100%	256 KB

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Power & Dimensions

The GeForce GTX 645 draws 200W versus the Radeon R7 450's 55W — a 113.7% difference. The Radeon R7 450 is more power-efficient. Recommended PSU: 300W (GeForce GTX 645) vs 250W (Radeon R7 450). Power connectors: None vs None.

Feature	GeForce GTX 645	Radeon R7 450
TDP	200W	55W-73%
Recommended PSU	300W	250W-17%
Power Connector	None	None
Length	147mm	—
Height	111mm	—
Slots	1	—
Temp (Load)	80	—
Perf/Watt	9.4	34.3+265%

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Value Analysis

At launch, the GeForce GTX 645 came in at $150, while the Radeon R7 450 launched at $219. On MSRP, GeForce GTX 645 was 31.5% cheaper ($69 less). Performance per dollar on MSRP (G3D Mark / MSRP): 12.5 (GeForce GTX 645) vs 8.6 (Radeon R7 450) — the GeForce GTX 645 offers 45.3% better value. The newer card here is Radeon R7 450 (2016 vs 2010).

Feature	GeForce GTX 645	Radeon R7 450
MSRP	$150-32%	$219
Performance per Dollar	12.5+45%	8.6
Codename	GF100	Cape Verde
Release	May 31 2010	July 6 2016
Ranking	#618	#667

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