GeForce RTX 4080 vs Radeon R7 250X 2GB

Intro

Compare those specifications to the Radeon R7 250X 2GB, which has clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
GeForce RTX 4080		320 Watts
	Difference: 225 Watts (237%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 4080 is 919% faster than the Radeon R7 250X 2GB overall, due to its greater data rate. (explain)

GeForce RTX 4080		734003 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 662003 (919%)

Texel Rate

The GeForce RTX 4080 will be a lot (about 1576%) better at AF than the Radeon R7 250X 2GB. (explain)

GeForce RTX 4080		670320 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 630320 (1576%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce RTX 4080 is superior to the Radeon R7 250X 2GB, by far. (explain)

GeForce RTX 4080		246960 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 230960 (1444%)

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. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.