GeForce GTX 285 2GB vs Radeon R7 250X

Intro

Compare that to the Radeon R7 250X, which features GPU core speed of 1000 MHz, and 1024 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 109 Watts (115%)

Memory Bandwidth

The GeForce GTX 285 2GB should in theory be quite a bit faster than the Radeon R7 250X in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 86976 (121%)

Texel Rate

The GeForce GTX 285 2GB will be quite a bit (about 30%) more effective at anisotropic filtering than the Radeon R7 250X. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 11840 (30%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 285 2GB is a better choice, by a large margin. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 4736 (30%)

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 (measured in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 are applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock 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 rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.