GeForce GTX 560 Ti 448 vs Radeon R7 250X 2GB

Intro

Compare those specs to the Radeon R7 250X 2GB, which comes with clock 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 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 GTX 560 Ti 448		210 Watts
	Difference: 115 Watts (121%)

Memory Bandwidth

The GeForce GTX 560 Ti 448 should theoretically be much faster than the Radeon R7 250X 2GB overall. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 72000 (100%)

Texel Rate

The GeForce GTX 560 Ti 448 is a little bit (about 2%) faster with regards to texture filtering than the Radeon R7 250X 2GB. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 992 (2%)

Pixel Rate

The GeForce GTX 560 Ti 448 will be much (about 83%) better at AA than the Radeon R7 250X 2GB, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 13280 (83%)

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 data (in units of MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.