Radeon RX 470 4GB vs Radeon RX Vega 64

Intro

Compare all of that to the Radeon RX Vega 64, which makes use of a 14 nm design. AMD has set the core frequency at 1247 MHz. The HBM2 memory works at a frequency of 1890 MHz on this particular card. It features 4096 SPUs as well as 256 TAUs and 64 ROPs.

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 theoretically be much superior to 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 will be a lot (approximately 169%) more effective at anisotropic filtering 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 using lots of anti-aliasing is important to you, then the Radeon RX Vega 64 is the winner, by a large margin. (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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.