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Radeon RX Vega 56 vs Radeon RX Vega 64

Intro

The Radeon RX Vega 56 features clock speeds of 1156 MHz on the GPU, and 1600 MHz on the 8192 MB of HBM2 memory. It features 3584 SPUs as well as 224 TAUs and 64 Rasterization Operator Units.

Compare that to the Radeon RX Vega 64, which comes with core speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 memory. It features 4096 SPUs as well as 256 Texture Address Units and 64 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX Vega 64 21986 points
Radeon RX Vega 56 21011 points
Difference: 975 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56 210 Watts
Radeon RX Vega 64 295 Watts
Difference: 85 Watts (40%)

Memory Bandwidth

Performance-wise, the Radeon RX Vega 64 should theoretically be a bit superior to the Radeon RX Vega 56 in general. (explain)

Radeon RX Vega 64 495411 MB/sec
Radeon RX Vega 56 419430 MB/sec
Difference: 75981 (18%)

Texel Rate

The Radeon RX Vega 64 will be quite a bit (about 23%) better at AF than the Radeon RX Vega 56. (explain)

Radeon RX Vega 64 319232 Mtexels/sec
Radeon RX Vega 56 258944 Mtexels/sec
Difference: 60288 (23%)

Pixel Rate

The Radeon RX Vega 64 is a bit (about 8%) more effective at AA than the Radeon RX Vega 56, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX Vega 64 79808 Mpixels/sec
Radeon RX Vega 56 73984 Mpixels/sec
Difference: 5824 (8%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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Radeon RX Vega 56

Amazon.com

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Radeon RX Vega 64

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon RX Vega 56 Radeon RX Vega 64
Manufacturer AMD AMD
Year September 2017 August 2017
Code Name Vega 10 XL Vega 10 XT
Memory 8192 MB 8192 MB
Core Speed 1156 MHz 1247 MHz
Memory Speed 1600 MHz 1890 MHz
Power (Max TDP) 210 watts 295 watts
Bandwidth 419430 MB/sec 495411 MB/sec
Texel Rate 258944 Mtexels/sec 319232 Mtexels/sec
Pixel Rate 73984 Mpixels/sec 79808 Mpixels/sec
Unified Shaders 3584 4096
Texture Mapping Units 224 256
Render Output Units 64 64
Bus Type HBM2 HBM2
Bus Width 2048-bit 2048-bit
Fab Process 14 nm 14 nm
Transistors 12500 million 12500 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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Radeon RX Vega 56

Amazon.com

Check prices at:

Radeon RX Vega 64

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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