Radeon R9 255 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 R9 255 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 R9 255 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 R9 255

2014

Why buy it

✅109.1% more average FPS across 50 tracked games in our benchmark data.
✅Costs $111 less on MSRP ($139 MSRP vs $250 MSRP).
✅Delivers 82.2% more G3D Mark for each dollar spent, at 10.8 vs 5.9 G3D/$ ($139 MSRP vs $250 MSRP).

Trade-offs

❌Less VRAM, with 2 GB vs 4 GB for high-resolution textures and newer games.
❌2014 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌153.3% higher power demand at 190W vs 75W.

Radeon R9 M365X

2015

Why buy it

✅100% more VRAM for high-resolution textures and newer games (4 GB vs 2 GB).
✅Draws 75W instead of 190W, a 115W reduction.
✅More future proof: GCN 1.0 (2012−2020) on 28nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than Radeon R9 255 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.
❌
79.9% HIGHER MSRP
$250 MSRPvs$139 MSRP
❌Lower G3D Mark per dollar, at 5.9 vs 10.8 G3D/$ ($250 MSRP vs $139 MSRP).

Quick Answers

Which GPU is faster for gaming right now?

Radeon R9 255 is the faster gaming card right now. In our data, it leads by 109.1% in average FPS across 50 tracked games in our benchmark data and by 1.3% in PassMark G3D (1,501 vs 1,482), so the answer here is pretty clean.

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

Radeon R9 255 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?

Radeon R9 255 makes the most sense to buy today. It is $111 cheaper on MSRP at $139 vs $250, and it leads G3D-per-dollar by 82.2% (10.8 vs 5.9), so the value case lines up with the gaming result.

Radeon R9 255 vs Radeon R9 M365X Technical Specifications

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

Radeon R9 255

The Radeon R9 255 is manufactured by AMD. It was released in September 2 2014. It features the GCN 3.0 architecture. The core clock speed is 918 MHz. It has 1792 shading units. The thermal design power (TDP) is 190W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,501 points. Launch price was $249.

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 R9 255 scores 1,501 and the Radeon R9 M365X reaches 1,482 in the G3D Mark benchmark — just a 1.3% difference, making them near-identical in rasterization performance. The Radeon R9 255 is built on GCN 3.0 while the Radeon R9 M365X uses GCN 1.0, both on a 28 nm process. Shader units: 1,792 (Radeon R9 255) vs 640 (Radeon R9 M365X). Raw compute: 3.29 TFLOPS (Radeon R9 255) vs 1.184 TFLOPS (Radeon R9 M365X).

Feature	Radeon R9 255	Radeon R9 M365X
G3D Mark Score	1,501+1%	1,482
Architecture	GCN 3.0	GCN 1.0
Process Node	28 nm	28 nm
Shading Units	1792+180%	640
Compute (TFLOPS)	3.29 TFLOPS+178%	1.184 TFLOPS
ROPs	32+100%	16
TMUs	112+180%	40
L1 Cache	448 KB+180%	160 KB
L2 Cache	512 KB+100%	256 KB
Frame Generation	FSR upscaling	FSR upscaling

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Advanced Features (DLSS/FSR)

Feature	Radeon R9 255	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 R9 255 has 2 GB of VRAM, while the Radeon R9 M365X carries 4 GB. Radeon R9 M365X 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 Radeon R9 255 and 128-bit on the Radeon R9 M365X. L2 Cache: 512 KB (Radeon R9 255) vs 256 KB (Radeon R9 M365X) — the Radeon R9 255 has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon R9 255	Radeon R9 M365X
VRAM Capacity	2 GB	4 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 Radeon R9 255 draws 190W versus the Radeon R9 M365X's 75W — a 86.8% difference. The Radeon R9 M365X is more power-efficient. Recommended PSU: 400W (Radeon R9 255) vs 350W (Radeon R9 M365X). Power connectors: 1x 6-pin vs Mobile.

Feature	Radeon R9 255	Radeon R9 M365X
TDP	190W	75W-61%
Recommended PSU	400W	350W-13%
Power Connector	1x 6-pin	Mobile
Perf/Watt	7.9	19.8+151%

💰

Value Analysis

At launch, the Radeon R9 255 came in at $139, while the Radeon R9 M365X launched at $250. On MSRP, Radeon R9 255 was 44.4% cheaper ($111 less). Performance per dollar on MSRP (G3D Mark / MSRP): 10.8 (Radeon R9 255) vs 5.9 (Radeon R9 M365X) — the Radeon R9 255 offers 83.1% better value. The newer card here is Radeon R9 M365X (2015 vs 2014).

Feature	Radeon R9 255	Radeon R9 M365X
MSRP	$139-44%	$250
Performance per Dollar	10.8+83%	5.9
Codename	Tonga	Tropo
Release	September 2 2014	May 5 2015
Ranking	#365	#769

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