GeForce GTX 460 1GB vs Radeon R7 250X 2GB

Intro

Compare that to the Radeon R7 250X 2GB, which has a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 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 460 1GB		160 Watts
	Difference: 65 Watts (68%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 1GB should in theory be much better than the Radeon R7 250X 2GB overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 43200 (60%)

Texel Rate

The Radeon R7 250X 2GB is a little bit (about 6%) better at AF than the GeForce GTX 460 1GB. (explain)

Radeon R7 250X 2GB		40000 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 2200 (6%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 460 1GB is superior to the Radeon R7 250X 2GB, by far. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 5600 (35%)

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 (measured in megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.