Radeon R9 280 vs Radeon RX 6600

Intro

Compare those specs to the Radeon RX 6600, which has GPU clock speed of 1626 MHz, and 8192 MB of GDDR6 RAM running at 1750 MHz through a 128-bit bus. It also is comprised of 1792 SPUs, 112 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
Radeon R9 280		250 Watts
	Difference: 118 Watts (89%)

Memory Bandwidth

In theory, the Radeon R9 280 should perform a bit faster than the Radeon RX 6600 overall. (explain)

Radeon R9 280		240000 MB/sec
Radeon RX 6600		229376 MB/sec
	Difference: 10624 (5%)

Texel Rate

The Radeon RX 6600 should be much (about 74%) better at anisotropic filtering than the Radeon R9 280. (explain)

Radeon RX 6600		182112 Mtexels/sec
Radeon R9 280		104496 Mtexels/sec
	Difference: 77616 (74%)

Pixel Rate

The Radeon RX 6600 is much (approximately 249%) faster with regards to FSAA than the Radeon R9 280, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6600		104064 Mpixels/sec
Radeon R9 280		29856 Mpixels/sec
	Difference: 74208 (249%)

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 MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.