GeForce GTX 1070 vs Radeon R7 250X 2GB

Intro

Compare all that 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 TAUs 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 1070		150 Watts
	Difference: 55 Watts (58%)

Memory Bandwidth

Theoretically, the GeForce GTX 1070 should be much faster than the Radeon R7 250X 2GB overall. (explain)

GeForce GTX 1070		262144 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 190144 (264%)

Texel Rate

The GeForce GTX 1070 is a lot (more or less 352%) faster with regards to AF than the Radeon R7 250X 2GB. (explain)

GeForce GTX 1070		180720 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 140720 (352%)

Pixel Rate

The GeForce GTX 1070 will be a lot (more or less 502%) better at anti-aliasing than the Radeon R7 250X 2GB, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 1070		96384 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 80384 (502%)

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 (counted in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.