AMD Radeon Pro Vega 56 vs AMD Radeon RX 6600S

Updated Sep 2026 · Scored by the Let’s Compare Data Engine · How we score

The AMD Radeon Pro Vega 56 and AMD Radeon RX 6600S are closely matched at 48 and 46/100. The AMD Radeon Pro Vega 56 edges ahead on Memory and Theoretical Performance, while the AMD Radeon RX 6600S leads on Core Specifications and Benchmark — pick the one whose strengths match what you'll actually use.

Verdict

Our overall take, at a glance

AMD Radeon Pro Vega 56 and AMD Radeon RX 6600S are closely matched

AMD Radeon Pro Vega 56

AMD Radeon RX 6600S

Where AMD Radeon Pro Vega 56 stands out

Memory Capacity: 8 GB (100% more)
Memory Bandwidth: 402.4 GB/s (80% more)
Memory Technology: HBM2

Where AMD Radeon RX 6600S stands out

Core Specifications Lithography Process: 7 nm (50% less)
Benchmark G3D Mark: 13,569 (13% more)

Winner by category for AMD Radeon Pro Vega 56 vs AMD Radeon RX 6600S
Category	AMD Radeon Pro Vega 56	AMD Radeon RX 6600S	Winner
Core Specifications	23	89	AMD Radeon RX 6600S
Memory	66	31	AMD Radeon Pro Vega 56
API Support	50	50	Tie
Theoretical Performance	50	45	AMD Radeon Pro Vega 56
Benchmark	37	45	AMD Radeon RX 6600S
Miscellaneous	87	32	AMD Radeon Pro Vega 56

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Sep 2026.

AMD Radeon Pro Vega 56

The AMD Radeon Pro Vega 56 is a discrete graphics card utilizing the advanced Vega architecture. Designed with support for high-bandwidth memory and modern compute features, it targets professional users and enthusiasts who require significant processing power. Its architecture positions it as a high-end card capable of substantial computational loads.

Best for Computational tasksBest for Professional visualizationBest for High-end applications

Pros

Built on the GCN 5th generation architecture for professional versatility (Source 1)
Features support for modern APIs, including Vulkan 1.3 and OpenGL 4.6 (Source 1)
Designed with features like high-bandwidth cache and controller to handle large datasets (Source 1)
The card draws power via a PCIe 3.0 x16 interface (Source 1)

Cons

The product line has been succeeded by newer graphics generations, indicating it is an older model (Source 1)
Its core architecture utilized the 14 nm FinFET fabrication process (Source 1)

AMD Radeon RX 6600S

The AMD Radeon RX 6600S is a dedicated graphics processor designed for mobile platforms, utilizing a 7-nanometer manufacturing process. It comes equipped with 8 GB of dedicated GDDR6 memory on a 192-bit bus, achieving a memory bandwidth of 432 GB/s. With an adjustable power envelope between 50 and 100 watts, it balances thermal efficiency and performance for portable gaming setups.

Best for Mid-range gaming on portable and thin-and-light laptop designsBest for Content creation tasks requiring dedicated VRAM on the go

Pros

Dedicated 8 GB GDDR6 memory prevents the system from sharing main memory for graphical tasks
High memory bandwidth of 432 GB/s supported by a wide 192-bit bus
Flexible power requirements from 50W to 100W allow for integration into thinner laptop form factors
Up-to-date API support including Vulkan 1.3 and DirectX 12

Cons

Peak single-precision performance of 7.0 TFLOPS may limit frame rates on demanding modern AAA games at high settings

Value for Money

Which is the better deal for the price

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AMD Radeon Pro Vega 56

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AMD Radeon RX 6600S

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Performance

Higher benchmark score = faster

AMD Radeon Pro Vega 5612,060

AMD Radeon RX 6600S13,569

See the raw benchmark values →

Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.

Detailed Specifications

The full spec sheet, side by side

Core Specifications

Feature	AMD Radeon Pro Vega 56	AMD Radeon RX 6600S
Base Frequency	1.138 GHz	2.359 GHz
Base Power	N/A	N/A
Maximum Frequency	1.25 GHz	2.655 GHz
Maximum Power	N/A	80 W
Lithography Process	14 nm	7 nm50% less

Memory

Feature	AMD Radeon Pro Vega 56	AMD Radeon RX 6600S
Capacity	8 GB100% more	4 GB
Technology
Bus Width	2,048 bit	128 bit
Bandwidth	402.4 GB/s80% more	224 GB/s
Is Shared	No	No

API Support

Feature	AMD Radeon Pro Vega 56	AMD Radeon RX 6600S
DirectX Version	12.1	12
OpenGL Version	4.6	4.6
Vulkan Version	1.3	1.3
OpenCL Version	2.1	2.1

Theoretical Performance

Feature	AMD Radeon Pro Vega 56	AMD Radeon RX 6600S
Pixel Rate	80 GP/s	120.3 GP/s
Texture Rate	280 GT/s	244.2 GT/s
Performance (FP16)	17.92 TFLOPS15% more	15.63 TFLOPS
Performance (FP32)	8.96 TFLOPS15% more	7.81 TFLOPS
Performance (FP64)	560 GFLOPS	448.1 GFLOPS

Benchmark

Feature	AMD Radeon Pro Vega 56	AMD Radeon RX 6600S
G3D Mark	12,060	13,56913% more

Miscellaneous

Feature	AMD Radeon Pro Vega 56	AMD Radeon RX 6600S
Release Date	August 17, 2017	January 4, 2022
Platform

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about AMD Radeon Pro Vega 56 vs AMD Radeon RX 6600S comparison

They are closely matched: AMD Radeon Pro Vega 56 scores 48/100 and AMD Radeon RX 6600S scores 46/100 in our overall comparison — within 2 points. Neither is a clear winner overall, so the decision comes down to the specific features and price that matter most to you.

AMD Radeon Pro Vega 56 and AMD Radeon RX 6600S are compared side by side above across every spec in the gpus category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 48/100 for AMD Radeon Pro Vega 56 and 46/100 for AMD Radeon RX 6600S.

It's close — AMD Radeon Pro Vega 56 (48/100) and AMD Radeon RX 6600S (46/100) score almost the same. Pick based on price and the individual specs that matter most to you; the comparison above shows where each one pulls ahead.