GeForce GTX 980 Ti vs Radeon R7 250X 2GB

Intro

Compare those specs to the Radeon R7 250X 2GB, which features a clock speed of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 155 Watts (163%)

Memory Bandwidth

The GeForce GTX 980 Ti should in theory perform a lot faster than the Radeon R7 250X 2GB in general. (explain)

GeForce GTX 980 Ti		336000 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 264000 (367%)

Texel Rate

The GeForce GTX 980 Ti should be a lot (more or less 340%) better at AF than the Radeon R7 250X 2GB. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 136000 (340%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 980 Ti is the winner, and very much so. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 80000 (500%)

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 largest amount of data (measured in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 applied in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at 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 card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.