Radeon RX 6600 vs Radeon RX Vega 64

Intro

Compare all of that to the Radeon RX Vega 64, which comes with GPU clock speed of 1247 MHz, and 8192 MB of HBM2 RAM running at 1890 MHz through a 2048-bit bus. It also is made up of 4096 Stream Processors, 256 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
Radeon RX Vega 64		295 Watts
	Difference: 163 Watts (123%)

Memory Bandwidth

In theory, the Radeon RX Vega 64 should perform much faster than the Radeon RX 6600 in general. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX 6600		229376 MB/sec
	Difference: 266035 (116%)

Texel Rate

The Radeon RX Vega 64 will be a lot (about 75%) more effective at anisotropic filtering than the Radeon RX 6600. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
Radeon RX 6600		182112 Mtexels/sec
	Difference: 137120 (75%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 6600 is superior to the Radeon RX Vega 64, and very much so. (explain)

Radeon RX 6600		104064 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 24256 (30%)

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 max amount of data (measured in MB per second) that can be transferred across the external memory interface in 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 DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 are applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, 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 amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.