Radeon R7 250X vs Radeon RX 6800

Intro

Compare those specs to the Radeon RX 6800, which makes use of a 7 nm design. AMD has clocked the core frequency at 1700 MHz. The GDDR6 RAM works at a speed of 2000 MHz on this specific model. It features 3840 SPUs along with 240 Texture Address Units and 96 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
Radeon RX 6800		250 Watts
	Difference: 155 Watts (163%)

Memory Bandwidth

The Radeon RX 6800, in theory, should perform quite a bit faster than the Radeon R7 250X in general. (explain)

Radeon RX 6800		524288 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 452288 (628%)

Texel Rate

The Radeon RX 6800 will be a lot (about 920%) better at AF than the Radeon R7 250X. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 368000 (920%)

Pixel Rate

The Radeon RX 6800 will be a lot (more or less 920%) more effective at AA than the Radeon R7 250X, and also capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 147200 (920%)

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 information (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.