Radeon 550X vs Radeon R9 M365X

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 550X vs Radeon R9 M365X 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 550X vs Radeon R9 M365X: 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 550X

2019

Why buy it

✅18.1% more average FPS across 50 tracked games in our benchmark data.
✅Costs $141 less on MSRP ($109 MSRP vs $250 MSRP).
✅Delivers 128.3% more G3D Mark for each dollar spent, at 13.5 vs 5.9 G3D/$ ($109 MSRP vs $250 MSRP).
✅Radeon R9 M365X is already obsolete for modern gaming, so Radeon 550X 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.
❌2019 hardware with 512 MB of VRAM already sits in legacy territory for modern games.

Radeon R9 M365X

2015

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 550X across 50 tracked games in our benchmark data.
❌2015 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌
129.4% HIGHER MSRP
$250 MSRPvs$109 MSRP
❌Lower G3D Mark per dollar, at 5.9 vs 13.5 G3D/$ ($250 MSRP vs $109 MSRP).
❌50% higher power demand at 75W vs 50W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon 550X is the faster gaming card right now. In our data, it leads by 18.1% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward Radeon R9 M365X instead at 1,482 vs 1,475, 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?

Radeon 550X is the safer long-term pick for 2026 and beyond. The case is simple: a 14nm process instead of 28nm and a newer 2019 generation instead of 2015. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

Radeon 550X makes the most sense to buy today. It is $141 cheaper on MSRP at $109 vs $250, and it leads G3D-per-dollar by 128.3% (13.5 vs 5.9), so the value case lines up with the gaming result.

Radeon 550X vs Radeon R9 M365X Technical Specifications

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

Radeon 550X

The Radeon 550X is manufactured by AMD. It was released in March 27 2019. It features the GCN 4.0 architecture. The core clock ranges from 1082 MHz to 1218 MHz. It has 512 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 1,475 points.

Radeon R9 M365X

The Radeon R9 M365X is manufactured by AMD. It was released in May 5 2015. 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: 1,482 points.

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Graphics Performance

The Radeon 550X scores 1,475 and the Radeon R9 M365X reaches 1,482 in the G3D Mark benchmark — just a 0.5% difference, making them near-identical in rasterization performance. The Radeon 550X is built on GCN 4.0 while the Radeon R9 M365X uses GCN 1.0, both on 14 nm vs 28 nm. Shader units: 512 (Radeon 550X) vs 640 (Radeon R9 M365X). Raw compute: 1.247 TFLOPS (Radeon 550X) vs 1.184 TFLOPS (Radeon R9 M365X). Boost clocks: 1218 MHz vs 925 MHz.

Feature	Radeon 550X	Radeon R9 M365X
G3D Mark Score	1,475	1,482
Architecture	GCN 4.0	GCN 1.0
Process Node	14 nm	28 nm
Shading Units	512	640+25%
Compute (TFLOPS)	1.247 TFLOPS+5%	1.184 TFLOPS
Boost Clock	1218 MHz+32%	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

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Advanced Features (DLSS/FSR)

Feature	Radeon 550X	Radeon R9 M365X
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

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Video Memory (VRAM)

The Radeon 550X has 512 MB of VRAM, while the Radeon R9 M365X carries 4 GB. Radeon R9 M365X 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 550X and 128-bit on the Radeon R9 M365X. L2 Cache: 512 KB (Radeon 550X) vs 256 KB (Radeon R9 M365X) — the Radeon 550X has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon 550X	Radeon R9 M365X
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

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Power & Dimensions

The Radeon 550X draws 50W versus the Radeon R9 M365X's 75W — a 40% difference. The Radeon 550X is more power-efficient. Recommended PSU: 350W (Radeon 550X) vs 350W (Radeon R9 M365X). Power connectors: None vs Mobile.

Feature	Radeon 550X	Radeon R9 M365X
TDP	50W-33%	75W
Recommended PSU	350W	350W
Power Connector	None	Mobile
Perf/Watt	29.5+49%	19.8

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Value Analysis

At launch, the Radeon 550X came in at $109, while the Radeon R9 M365X launched at $250. On MSRP, Radeon 550X was 56.4% cheaper ($141 less). Performance per dollar on MSRP (G3D Mark / MSRP): 13.5 (Radeon 550X) vs 5.9 (Radeon R9 M365X) — the Radeon 550X offers 128.8% better value. The newer card here is Radeon 550X (2019 vs 2015).

Feature	Radeon 550X	Radeon R9 M365X
MSRP	$109-56%	$250
Performance per Dollar	13.5+129%	5.9
Codename	Lexa	Tropo
Release	March 27 2019	May 5 2015
Ranking	#772	#769

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