GeForce RTX 3080 12 GB vs Radeon R7 250

Intro

Compare that to the Radeon R7 250, which comes with GPU core speed of 1000 MHz, and 1024 MB of GDDR5 RAM running at 1150 MHz through a 128-bit bus. It also is made up of 384 Stream Processors, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 285 Watts (438%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 12 GB is 1169% faster than the Radeon R7 250 in general, due to its higher data rate. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 860698 (1169%)

Texel Rate

The GeForce RTX 3080 12 GB will be quite a bit (about 1370%) more effective at texture filtering than the Radeon R7 250. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 328800 (1370%)

Pixel Rate

The GeForce RTX 3080 12 GB is a lot (about 1664%) more effective at full screen anti-aliasing than the Radeon R7 250, and also should be capable of handling higher screen resolutions better. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 133120 (1664%)

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 max amount of information (counted in megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling 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 video card 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 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 also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.