Radeon RX 470 4GB vs Radeon RX Vega 64

Intro

Compare those specifications to the Radeon RX Vega 64, which features core speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 RAM. It features 4096 SPUs as well as 256 TAUs 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

Theoretically speaking, the Radeon RX Vega 64 will be 135% faster than the Radeon RX 470 4GB in general, because of its greater data rate. (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 should be quite a bit (about 169%) more effective at 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

The Radeon RX Vega 64 will be a lot (more or less 169%) faster with regards to full screen anti-aliasing than the Radeon RX 470 4GB, and should be able to handle higher resolutions without slowing down too much. (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 information (in units of MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling 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. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.