Radeon RX 5700 vs Radeon RX Vega 64

Intro

Compare all of that to the Radeon RX Vega 64, which features core clock 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.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700		180 Watts
Radeon RX Vega 64		295 Watts
	Difference: 115 Watts (64%)

Memory Bandwidth

In theory, the Radeon RX Vega 64 will be 8% faster than the Radeon RX 5700 in general, because of its higher data rate. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX 5700		458752 MB/sec
	Difference: 36659 (8%)

Texel Rate

The Radeon RX Vega 64 is a lot (more or less 51%) better at texture filtering than the Radeon RX 5700. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Radeon RX 5700		210960 Mtexels/sec
	Difference: 108272 (51%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 5700 is superior to the Radeon RX Vega 64, though only just barely. (explain)

Radeon RX 5700		93760 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 13952 (17%)

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

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.