GeForce RTX 3090 vs Radeon R7 250X

Intro

Compare those specs to the Radeon R7 250X, which features a GPU core clock speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
GeForce RTX 3090		350 Watts
	Difference: 255 Watts (268%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3090 should in theory be quite a bit better than the Radeon R7 250X in general. (explain)

GeForce RTX 3090		958668 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 886668 (1231%)

Texel Rate

The GeForce RTX 3090 should be quite a bit (about 1044%) better at AF than the Radeon R7 250X. (explain)

GeForce RTX 3090		457560 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 417560 (1044%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 3090 is the winner, and very much so. (explain)

GeForce RTX 3090		156240 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 140240 (877%)

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 maximum amount of information (measured in MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.