Geforce GTX 680 vs Radeon R7 250X 2GB

Intro

Compare those specs to the Radeon R7 250X 2GB, which has core clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
Geforce GTX 680		195 Watts
	Difference: 100 Watts (105%)

Memory Bandwidth

In theory, the Geforce GTX 680 should be much faster than the Radeon R7 250X 2GB in general. (explain)

Geforce GTX 680		192256 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 120256 (167%)

Texel Rate

The Geforce GTX 680 is a lot (about 222%) better at AF than the Radeon R7 250X 2GB. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 88768 (222%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 680 is a better choice, by far. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 16192 (101%)

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 max amount of data (counted in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, 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 number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.