Radeon RX 470 4GB vs Radeon RX Vega 64

Intro

Compare those specifications to the Radeon RX Vega 64, which comes with core clock speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 RAM. It features 4096 SPUs along with 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 470 4GB		120 Watts
Radeon RX Vega 64		295 Watts
	Difference: 175 Watts (146%)

Memory Bandwidth

As far as performance goes, the Radeon RX Vega 64 should in theory be quite a bit better than the Radeon RX 470 4GB in general. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX 470 4GB		211200 MB/sec
	Difference: 284211 (135%)

Texel Rate

The Radeon RX Vega 64 is a lot (more or less 169%) faster with regards to AF than the Radeon RX 470 4GB. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Radeon RX 470 4GB		118528 Mtexels/sec
	Difference: 200704 (169%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX Vega 64 is superior to the Radeon RX 470 4GB, and very much so. (explain)

Radeon RX Vega 64		79808 Mpixels/sec
Radeon RX 470 4GB		29632 Mpixels/sec
	Difference: 50176 (169%)

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 largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.