GeForce GTX 970 vs Radeon R7 250X 2GB

Intro

Compare all of that to the Radeon R7 250X 2GB, which features clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
GeForce GTX 970		145 Watts
	Difference: 50 Watts (53%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 970 should theoretically be much better than the Radeon R7 250X 2GB in general. (explain)

GeForce GTX 970		224000 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 152000 (211%)

Texel Rate

The GeForce GTX 970 should be a lot (approximately 173%) better at anisotropic filtering than the Radeon R7 250X 2GB. (explain)

GeForce GTX 970		109200 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 69200 (173%)

Pixel Rate

The GeForce GTX 970 should be much (approximately 320%) faster with regards to anti-aliasing than the Radeon R7 250X 2GB, and also will be able to handle higher screen resolutions better. (explain)

GeForce GTX 970		67200 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 51200 (320%)

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 information (in units of megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 number of texture map elements (texels) that can be applied 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 a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.