GeForce GTX 645 vs Radeon RX 570X

CPU

GPU

GeForce GTX 645

2010Core: 607 MHz

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Radeon RX 570X

2018Core: 1168 MHzBoost: 1244 MHz

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GeForce GTX 645 vs Radeon RX 570X Performance Spectrum

GeForce GTX 645

1 GB 200

1,880

0.0%

GeForce GTX 780 Rev. 2

1,923

+2.3%

Radeon RX 9060 XT 16GB

About G3D Mark

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 RX 570X 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 RX 570X: 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

✅Costs $19 less on MSRP ($150 MSRP vs $169 MSRP).
✅Delivers 10.1% more G3D Mark for each dollar spent, at 12.5 vs 11.4 G3D/$ ($150 MSRP vs $169 MSRP).
✅Measures 147mm instead of 241mm, a 94mm shorter card that is more SFF-friendly.

Trade-offs

❌Lower average FPS than Radeon RX 570X across 50 tracked games in our benchmark data.
❌Less VRAM, with 1 GB vs 8 GB for high-resolution textures and newer games.
❌No equivalent frame-generation stack like FSR Frame Generation (2023).
❌2010 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌66.7% higher power demand at 200W vs 120W.

Radeon RX 570X

2018

Why buy it

✅45.1% more average FPS across 50 tracked games in our benchmark data.
✅Access to a newer frame-generation stack with FSR Frame Generation (2023).
✅700% more VRAM for high-resolution textures and newer games (8 GB vs 1 GB).
✅GeForce GTX 645 is already obsolete for modern gaming, so Radeon RX 570X is the less risky modern option long term.
✅Draws 120W instead of 200W, a 80W reduction.

Trade-offs

❌2018 hardware with 8 GB of VRAM already sits in legacy territory for modern games.
❌
12.7% HIGHER MSRP
$169 MSRPvs$150 MSRP
❌Lower G3D Mark per dollar, at 11.4 vs 12.5 G3D/$ ($169 MSRP vs $150 MSRP).
❌63.9% longer card at 241mm vs 147mm.

Quick Answers

Which GPU is faster for gaming right now?

Radeon RX 570X is the faster gaming card right now. In our data, it leads by 45.1% in average FPS across 50 tracked games in our benchmark data and by 2.3% in PassMark G3D (1,923 vs 1,880), so the answer here is pretty clean.

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

Radeon RX 570X is the safer long-term pick for 2026 and beyond. The case is simple: 8 GB vs 1 GB of VRAM, the newer feature stack, with FSR Upscaling / FSR 4 (2025) and FSR Frame Generation (2023), while GeForce GTX 645 is limited to no meaningful modern upscaling stack and no comparable frame-generation support, a 14nm process instead of 40nm, and a newer 2018 generation instead of 2010. 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 $19 cheaper on MSRP at $150 vs $169, and it leads G3D-per-dollar by 10.1% (12.5 vs 11.4), which is enough to swing the recommendation its way. If you are mainly targeting 1080p and some 1440p, GeForce GTX 645 is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon RX 570X has the stronger long-term case.

GeForce GTX 645 vs Radeon RX 570X 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 RX 570X

The Radeon RX 570X is manufactured by AMD. It was released in April 11 2018. It features the GCN 4.0 architecture. The core clock ranges from 1168 MHz to 1244 MHz. It has 2048 shading units. The thermal design power (TDP) is 120W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 1,923 points.

⚡

Graphics Performance

The GeForce GTX 645 scores 1,880 and the Radeon RX 570X reaches 1,923 in the G3D Mark benchmark — just a 2.3% difference, making them near-identical in rasterization performance. The GeForce GTX 645 is built on Fermi while the Radeon RX 570X uses GCN 4.0, both on 40 nm vs 14 nm. Shader units: 352 (GeForce GTX 645) vs 2,048 (Radeon RX 570X). Raw compute: 0.8554 TFLOPS (GeForce GTX 645) vs 5.095 TFLOPS (Radeon RX 570X).

Feature	GeForce GTX 645	Radeon RX 570X
G3D Mark Score	1,880	1,923+2%
Architecture	Fermi	GCN 4.0
Process Node	40 nm	14 nm
Shading Units	352	2048+482%
Compute (TFLOPS)	0.8554 TFLOPS	5.095 TFLOPS+496%
ROPs	32	32
TMUs	44	128+191%
L1 Cache	704 KB+38%	512 KB
L2 Cache	0.5 MB	2 MB+300%

✨

Advanced Features (DLSS/FSR)

The clearest feature edge for the Radeon RX 570X is support for FSR Frame Generation. In games that support it, that can smooth out motion and lift perceived FPS. The GeForce GTX 645 does not have comparable native support in the same tier.The GeForce GTX 645 gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon RX 570X leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce GTX 645	Radeon RX 570X
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	FSR Frame Generation
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	AMD Anti-Lag

💾

Video Memory (VRAM)

The GeForce GTX 645 has 1 GB of VRAM, while the Radeon RX 570X carries 8 GB. Radeon RX 570X gives you 700% 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 RX 570X. L2 Cache: 0.5 MB (GeForce GTX 645) vs 2 MB (Radeon RX 570X) — the Radeon RX 570X has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GTX 645	Radeon RX 570X
VRAM Capacity	1 GB	8 GB+700%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	0.5 MB	2 MB+300%

🖥️

Display & API Support

DirectX support: 11.0 (GeForce GTX 645) vs 12_0 (Radeon RX 570X). Maximum simultaneous displays: 3 vs 5.

Feature	GeForce GTX 645	Radeon RX 570X
DirectX	11.0	12_0+9%
Max Displays	3	5+67%

🎬

Media & Encoding

Hardware encoder: NVENC (1st Gen) (GeForce GTX 645) vs VCE 3.4 (Radeon RX 570X). Decoder: PureVideo VP5 vs UVD 6.3.

Feature	GeForce GTX 645	Radeon RX 570X
Encoder	NVENC (1st Gen)	VCE 3.4
Decoder	PureVideo VP5	UVD 6.3
Codecs	MPEG-2,VC-1,H.264,MPEG-4	—

🔌

Power & Dimensions

The GeForce GTX 645 draws 200W versus the Radeon RX 570X's 120W — a 50% difference. The Radeon RX 570X is more power-efficient. Recommended PSU: 300W (GeForce GTX 645) vs 450W (Radeon RX 570X). Power connectors: None vs None. Card length: 147mm vs 241mm, occupying 1 vs 2 slots.

Feature	GeForce GTX 645	Radeon RX 570X
TDP	200W	120W-40%
Recommended PSU	300W-33%	450W
Power Connector	None	None
Length	147mm	241mm
Height	111mm	—
Slots	1-50%	2
Temp (Load)	80	—
Perf/Watt	9.4	16.0+70%

💰

Value Analysis

At launch, the GeForce GTX 645 came in at $150, while the Radeon RX 570X launched at $169. On MSRP, GeForce GTX 645 was 11.2% cheaper ($19 less). Performance per dollar on MSRP (G3D Mark / MSRP): 12.5 (GeForce GTX 645) vs 11.4 (Radeon RX 570X) — the GeForce GTX 645 offers 9.6% better value. The newer card here is Radeon RX 570X (2018 vs 2010).

Feature	GeForce GTX 645	Radeon RX 570X
MSRP	$150-11%	$169
Performance per Dollar	12.5+10%	11.4
Codename	GF100	Polaris 20
Release	May 31 2010	April 11 2018
Ranking	#618	#693

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