Radeon RX 5700 vs Radeon RX Vega 64

Intro

Compare that to the Radeon RX Vega 64, which comes with a clock speed of 1247 MHz and a HBM2 memory frequency of 1890 MHz. It also features a 2048-bit memory bus, and uses a 14 nm design. It is made up of 4096 SPUs, 256 TAUs, and 64 Raster Operation 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

Theoretically, the Radeon RX Vega 64 should perform a little bit faster than the Radeon RX 5700 in general. (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 much (about 51%) better at anisotropic 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 running with lots of anti-aliasing is important to you, then the Radeon RX 5700 is superior to the Radeon RX Vega 64, but it probably won't make a huge difference. (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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.