GeForce GTX 560 Ti vs Radeon R7 250X 2GB

Intro

Compare all that to the Radeon R7 250X 2GB, which comes with core speeds of 1000 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 75 Watts (79%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti should be quite a bit faster than the Radeon R7 250X 2GB overall. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 56256 (78%)

Texel Rate

The GeForce GTX 560 Ti should be much (more or less 32%) more effective at AF than the Radeon R7 250X 2GB. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 12608 (32%)

Pixel Rate

The GeForce GTX 560 Ti is quite a bit (more or less 64%) better at AA than the Radeon R7 250X 2GB, and will be capable of handling higher resolutions better. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 10304 (64%)

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 (measured in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.