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

Intro

Compare those specifications to the Radeon R7 250X 2GB, which has a clock speed of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It features 640 SPUs, 40 Texture Address Units, 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 448		210 Watts
	Difference: 115 Watts (121%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti 448 should perform a lot faster than the Radeon R7 250X 2GB in general. (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 should be a small bit (approximately 2%) more effective at anisotropic 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 a lot (more or less 83%) more effective at anti-aliasing than the Radeon R7 250X 2GB, and also should be capable of handling higher screen resolutions better. (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: Bandwidth is the largest amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core 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 rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.