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 Pro 580X vs Radeon RX 6400 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 Pro 580X vs Radeon RX 6400: 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 Pro 580X

2019

Why buy it

✅55.1% more average FPS across 50 tracked games in our benchmark data.
✅100% more VRAM for high-resolution textures and newer games (8 GB vs 4 GB).

Trade-offs

❌No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
❌Older hardware, 8 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
❌
277.4% HIGHER MSRP
$600 MSRPvs$159 MSRP
❌Lower G3D Mark per dollar, at 12.6 vs 48.6 G3D/$ ($600 MSRP vs $159 MSRP).
❌183% higher power demand at 150W vs 53W.

Radeon RX 6400

2022

Why buy it

✅Costs $441 less on MSRP ($159 MSRP vs $600 MSRP).
✅Delivers 286.8% more G3D Mark for each dollar spent, at 48.6 vs 12.6 G3D/$ ($159 MSRP vs $600 MSRP).
✅Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
✅Better long-term bet: RDNA 2.0 (2020−2025) on 6nm gives it a newer hardware base for upcoming games.
✅Draws 53W instead of 150W, a 97W reduction.

Trade-offs

❌Lower average FPS than Radeon Pro 580X across 50 tracked games in our benchmark data.
❌Less VRAM, with 4 GB vs 8 GB for high-resolution textures and newer games.

Quick Answers

Which GPU is faster for gaming right now?

Radeon Pro 580X is the faster gaming card right now. In our data, it leads by 55.1% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward Radeon RX 6400 instead at 7,728 vs 7,540, 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 RX 6400 is the safer long-term pick for 2026 and beyond. The case is simple: native frame generation with FSR Frame Generation + AFMF (2023), while Radeon Pro 580X has no comparable frame-generation support, a 6nm process instead of 14nm, 12 vs 0 ray-tracing units, and a newer 2022 generation instead of 2019. That gives it the more rounded hardware package for newer games.

Which GPU is the better buy today?

Radeon RX 6400 makes the most sense to buy today. It is $441 cheaper on MSRP at $159 vs $600, and it leads G3D-per-dollar by 286.8% (48.6 vs 12.6), which is enough to swing the recommendation its way. Radeon Pro 580X still makes more sense if max raw gaming performance matters more than value.

Radeon Pro 580X vs Radeon RX 6400 Technical Specifications

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

Radeon Pro 580X

The Radeon Pro 580X is manufactured by AMD. It was released in March 18 2019. It features the GCN 4.0 architecture. The core clock ranges from 1100 MHz to 1200 MHz. It has 2304 shading units. The thermal design power (TDP) is 150W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 7,540 points.

Radeon RX 6400

The Radeon RX 6400 is manufactured by AMD. It was released in January 19 2022. It features the RDNA 2.0 architecture. The core clock ranges from 1923 MHz to 2321 MHz. It has 768 shading units. The thermal design power (TDP) is 53W. Manufactured using 6 nm process technology. It features 12 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 7,728 points. Launch price was $159.

⚡

Graphics Performance

The Radeon Pro 580X scores 7,540 and the Radeon RX 6400 reaches 7,728 in the G3D Mark benchmark — just a 2.5% difference, making them near-identical in rasterization performance. The Radeon Pro 580X is built on GCN 4.0 while the Radeon RX 6400 uses RDNA 2.0, both on 14 nm vs 6 nm. Shader units: 2,304 (Radeon Pro 580X) vs 768 (Radeon RX 6400). Raw compute: 5.53 TFLOPS (Radeon Pro 580X) vs 3.565 TFLOPS (Radeon RX 6400). Boost clocks: 1200 MHz vs 2321 MHz.

Feature	Radeon Pro 580X	Radeon RX 6400
G3D Mark Score	7,540	7,728+2%
Architecture	GCN 4.0	RDNA 2.0
Process Node	14 nm	6 nm
Shading Units	2304+200%	768
Compute (TFLOPS)	5.53 TFLOPS+55%	3.565 TFLOPS
Boost Clock	1200 MHz	2321 MHz+93%
ROPs	32	32
TMUs	144+200%	48
L1 Cache	576 KB+125%	256 KB
L2 Cache	2 MB+100%	1 MB
Frame Generation	FSR upscaling	FSR 3 + AFMF

✨

Advanced Features (DLSS/FSR)

The clearest feature edge for the Radeon RX 6400 is support for FSR Frame Generation + AFMF. In games that support it, that can smooth out motion and lift perceived FPS. The Radeon Pro 580X does not have comparable native support in the same tier.

Feature	Radeon Pro 580X	Radeon RX 6400
Upscaling Tech	FSR Upscaling / FSR 4	FSR 3
Frame Generation	Not Supported	FSR Frame Generation + AFMF
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

The Radeon Pro 580X has 8 GB of VRAM, while the Radeon RX 6400 carries 4 GB. Radeon Pro 580X 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 Pro 580X and 64-bit on the Radeon RX 6400. L2 Cache: 2 MB (Radeon Pro 580X) vs 1 MB (Radeon RX 6400) — the Radeon Pro 580X has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon Pro 580X	Radeon RX 6400
VRAM Capacity	8 GB+100%	4 GB
Memory Type	GDDR6	GDDR6
Bus Width	128-bit+100%	64-bit
L2 Cache	2 MB+100%	1 MB

🖥️

Display & API Support

DirectX support: 12.0 (Radeon Pro 580X) vs 12.2 (Radeon RX 6400). Vulkan: 1.3 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 2.

Feature	Radeon Pro 580X	Radeon RX 6400
DirectX	12.0	12.2+2%
Vulkan	1.3	1.3
OpenGL	4.6	4.6
Max Displays	4+100%	2

🎬

Media & Encoding

Hardware encoder: VCE 3.4 (Radeon Pro 580X) vs None (Radeon RX 6400). Decoder: UVD 6.3 vs VCN 3.0 (Limited). Supported codecs: MPEG-2,H.264,HEVC (Radeon Pro 580X) vs MPEG-2,H.264 (Decode),HEVC (Decode) (Radeon RX 6400).

Feature	Radeon Pro 580X	Radeon RX 6400
Encoder	VCE 3.4	None
Decoder	UVD 6.3	VCN 3.0 (Limited)
Codecs	MPEG-2,H.264,HEVC	MPEG-2,H.264 (Decode),HEVC (Decode)

🔌

Power & Dimensions

The Radeon Pro 580X draws 150W versus the Radeon RX 6400's 53W — a 95.6% difference. The Radeon RX 6400 is more power-efficient. Recommended PSU: 350W (Radeon Pro 580X) vs 350W (Radeon RX 6400). Power connectors: PCIe-powered vs None. Card length: 0mm vs 172mm, occupying 0 vs 1 slots. Typical load temperature: 85°C vs 75°C.

Feature	Radeon Pro 580X	Radeon RX 6400
TDP	150W	53W-65%
Recommended PSU	350W	350W
Power Connector	PCIe-powered	None
Length	0mm	172mm
Height	0mm	112mm
Slots	0-100%	1
Temp (Load)	85°C	75°C-12%
Perf/Watt	50.3	145.8+190%

💰

Value Analysis

At launch, the Radeon Pro 580X came in at $600, while the Radeon RX 6400 launched at $159. On MSRP, Radeon RX 6400 was 73.5% cheaper ($441 less). Performance per dollar on MSRP (G3D Mark / MSRP): 12.6 (Radeon Pro 580X) vs 48.6 (Radeon RX 6400) — the Radeon RX 6400 offers 285.7% better value. The newer card here is Radeon RX 6400 (2022 vs 2019).

Feature	Radeon Pro 580X	Radeon RX 6400
MSRP	$600	$159-74%
Performance per Dollar	12.6	48.6+286%
Codename	Polaris 20	Navi 24
Release	March 18 2019	January 19 2022
Ranking	#339	#330

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