Radeon R7 250 vs Radeon RX 6800 XT

Intro

Compare those specifications to the Radeon RX 6800 XT, which uses a 7 nm design. AMD has clocked the core speed at 1825 MHz. The GDDR6 memory is set to run at a speed of 2000 MHz on this card. It features 4608 SPUs along with 288 Texture Address Units and 128 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 235 Watts (362%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6800 XT will be 612% faster than the Radeon R7 250 in general, due to its greater data rate. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 450688 (612%)

Texel Rate

The Radeon RX 6800 XT is much (more or less 2090%) more effective at texture filtering than the Radeon R7 250. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 501600 (2090%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6800 XT is a better choice, by far. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 225600 (2820%)

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 megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.