Radeon R7 250X vs Radeon RX 6700 XT

Intro

Compare those specifications to the Radeon RX 6700 XT, which has a clock frequency of 2321 MHz and a GDDR6 memory speed of 2000 MHz. It also makes use of a 192-bit memory bus, and makes use of a 7 nm design. It is made up of 2560 SPUs, 160 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
Radeon RX 6700 XT		230 Watts
	Difference: 135 Watts (142%)

Memory Bandwidth

In theory, the Radeon RX 6700 XT is 446% faster than the Radeon R7 250X overall, because of its greater bandwidth. (explain)

Radeon RX 6700 XT		393216 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 321216 (446%)

Texel Rate

The Radeon RX 6700 XT should be quite a bit (approximately 828%) more effective at anisotropic filtering than the Radeon R7 250X. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 331360 (828%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 6700 XT is a better choice, by far. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 132544 (828%)

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 (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's 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 texture map elements (texels) that are applied per second. This is calculated 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 ability to reach the maximum fill rate.