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.

Radeon 540X vs Radeon R9 M275X / M375 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.

Radeon 540X vs Radeon R9 M275X / M375: Pros, Cons & Final Verdict

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

Radeon 540X

2018

Why buy it

✅17.9% more average FPS across 50 tracked games in our benchmark data.
✅Costs $201 less on MSRP ($99 MSRP vs $300 MSRP).
✅Delivers 205.5% more G3D Mark for each dollar spent, at 16.0 vs 5.3 G3D/$ ($99 MSRP vs $300 MSRP).
✅Radeon R9 M275X / M375 is already obsolete for modern gaming, so Radeon 540X is the less risky modern option long term.
✅Draws 50W instead of 75W, a 25W reduction.

Trade-offs

❌Less VRAM, with 512 MB vs 4 GB for high-resolution textures and newer games.
❌2018 hardware with 512 MB of VRAM already sits in legacy territory for modern games.

Radeon R9 M275X / M375

2014

Why buy it

✅700% more VRAM for high-resolution textures and newer games (4 GB vs 512 MB).

Trade-offs

❌Lower average FPS than Radeon 540X across 50 tracked games in our benchmark data.
❌2014 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌
203% HIGHER MSRP
$300 MSRPvs$99 MSRP
❌Lower G3D Mark per dollar, at 5.3 vs 16.0 G3D/$ ($300 MSRP vs $99 MSRP).
❌50% higher power demand at 75W vs 50W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon 540X is the faster gaming card right now. In our data, it leads by 17.9% in average FPS across 50 tracked games in our benchmark data and by 0.8% in PassMark G3D (1,588 vs 1,575), so the answer here is pretty clean.

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

Radeon 540X is the safer long-term pick for 2026 and beyond. The case is simple: a 14nm process instead of 28nm and a newer 2018 generation instead of 2014. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

Radeon 540X makes the most sense to buy today. It is $201 cheaper on MSRP at $99 vs $300, and it leads G3D-per-dollar by 205.5% (16.0 vs 5.3), so the value case lines up with the gaming result.

Radeon 540X vs Radeon R9 M275X / M375 Technical Specifications

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

Radeon 540X

The Radeon 540X is manufactured by AMD. It was released in September 5 2018. It features the GCN 4.0 architecture. The core clock ranges from 980 MHz to 1046 MHz. It has 512 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 1,588 points.

Radeon R9 M275X / M375

The Radeon R9 M275X / M375 is manufactured by AMD. It was released in January 28 2014. It features the GCN 1.0 architecture. The core clock ranges from 900 MHz to 925 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,575 points.

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Graphics Performance

The Radeon 540X scores 1,588 and the Radeon R9 M275X / M375 reaches 1,575 in the G3D Mark benchmark — just a 0.8% difference, making them near-identical in rasterization performance. The Radeon 540X is built on GCN 4.0 while the Radeon R9 M275X / M375 uses GCN 1.0, both on 14 nm vs 28 nm. Shader units: 512 (Radeon 540X) vs 640 (Radeon R9 M275X / M375). Raw compute: 1.071 TFLOPS (Radeon 540X) vs 1.184 TFLOPS (Radeon R9 M275X / M375). Boost clocks: 1046 MHz vs 925 MHz.

Feature	Radeon 540X	Radeon R9 M275X / M375
G3D Mark Score	1,588	1,575
Architecture	GCN 4.0	GCN 1.0
Process Node	14 nm	28 nm
Shading Units	512	640+25%
Compute (TFLOPS)	1.071 TFLOPS	1.184 TFLOPS+11%
Boost Clock	1046 MHz+13%	925 MHz
ROPs	16	16
TMUs	32	40+25%
L1 Cache	128 KB	160 KB+25%
L2 Cache	512 KB+100%	256 KB
Frame Generation	FSR upscaling	FSR upscaling

✨

Advanced Features (DLSS/FSR)

Feature	Radeon 540X	Radeon R9 M275X / M375
Upscaling Tech	FSR Upscaling / FSR 4	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

The Radeon 540X has 512 MB of VRAM, while the Radeon R9 M275X / M375 carries 4 GB. Radeon R9 M275X / M375 gives you 700% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the Radeon 540X and 128-bit on the Radeon R9 M275X / M375. L2 Cache: 512 KB (Radeon 540X) vs 256 KB (Radeon R9 M275X / M375) — the Radeon 540X has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon 540X	Radeon R9 M275X / M375
VRAM Capacity	0.5 GB	4 GB+700%
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	128-bit+100%
L2 Cache	512 KB+100%	256 KB

🖥️

Display & API Support

DirectX support: 12 (Radeon 540X) vs 12_0 (Radeon R9 M275X / M375). Maximum simultaneous displays: 3 vs 0.

Feature	Radeon 540X	Radeon R9 M275X / M375
DirectX	12	12_0
Max Displays	3	0

🎬

Media & Encoding

Hardware encoder: UVD (Radeon 540X) vs VCE 2.0 (Radeon R9 M275X / M375). Decoder: VCE vs UVD 4.2.

Feature	Radeon 540X	Radeon R9 M275X / M375
Encoder	UVD	VCE 2.0
Decoder	VCE	UVD 4.2
Codecs	H.264,MPEG-2,MPEG-4,VC-1	—

🔌

Power & Dimensions

The Radeon 540X draws 50W versus the Radeon R9 M275X / M375's 75W — a 40% difference. The Radeon 540X is more power-efficient. Recommended PSU: 350W (Radeon 540X) vs 350W (Radeon R9 M275X / M375). Power connectors: PCIe-powered vs Mobile. Card length: 0mm vs 1mm, occupying 0 vs 0 slots.

Feature	Radeon 540X	Radeon R9 M275X / M375
TDP	50W-33%	75W
Recommended PSU	350W	350W
Power Connector	PCIe-powered	Mobile
Length	0mm	1mm
Height	0mm	—
Slots	0	0
Temp (Load)	75°C	—
Perf/Watt	31.8+51%	21.0

💰

Value Analysis

At launch, the Radeon 540X came in at $99, while the Radeon R9 M275X / M375 launched at $300. On MSRP, Radeon 540X was 67% cheaper ($201 less). Performance per dollar on MSRP (G3D Mark / MSRP): 16.0 (Radeon 540X) vs 5.3 (Radeon R9 M275X / M375) — the Radeon 540X offers 201.9% better value. The newer card here is Radeon 540X (2018 vs 2014).

Feature	Radeon 540X	Radeon R9 M275X / M375
MSRP	$99-67%	$300
Performance per Dollar	16.0+202%	5.3
Codename	Lexa	Venus
Release	September 5 2018	January 28 2014
Ranking	#754	#746

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