Radeon R7 250X 2GB vs Radeon RX 6600 XT

Intro

Compare that to the Radeon RX 6600 XT, which makes use of a 7 nm design. AMD has clocked the core frequency at 1968 MHz. The GDDR6 memory works at a frequency of 2000 MHz on this particular model. It features 2048 SPUs along with 128 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
Radeon RX 6600 XT		160 Watts
	Difference: 65 Watts (68%)

Memory Bandwidth

In theory, the Radeon RX 6600 XT will be 264% faster than the Radeon R7 250X 2GB overall, due to its higher data rate. (explain)

Radeon RX 6600 XT		262144 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 190144 (264%)

Texel Rate

The Radeon RX 6600 XT should be a lot (more or less 530%) faster with regards to texture filtering than the Radeon R7 250X 2GB. (explain)

Radeon RX 6600 XT		251904 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 211904 (530%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 6600 XT is superior to the Radeon R7 250X 2GB, by a large margin. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 109952 (687%)

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 maximum amount of data (counted in MB per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.