GeForce GTS 250 1GB vs Radeon R7 250X 2GB

Intro

Compare all of that to the Radeon R7 250X 2GB, which makes use of a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory works at a speed of 1125 MHz on this particular model. 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 GTS 250 1GB		145 Watts
	Difference: 50 Watts (53%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 250X 2GB should perform just a bit faster than the GeForce GTS 250 1GB in general. (explain)

Radeon R7 250X 2GB		72000 MB/sec
GeForce GTS 250 1GB		70400 MB/sec
	Difference: 1600 (2%)

Texel Rate

The GeForce GTS 250 1GB will be a little bit (approximately 18%) more effective at texture filtering than the Radeon R7 250X 2GB. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 7232 (18%)

Pixel Rate

The Radeon R7 250X 2GB should be much (about 36%) more effective at anti-aliasing than the GeForce GTS 250 1GB, and will be capable of handling higher resolutions without losing too much performance. (explain)

Radeon R7 250X 2GB		16000 Mpixels/sec
GeForce GTS 250 1GB		11808 Mpixels/sec
	Difference: 4192 (36%)

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 (measured in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 maximum number of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.