GeForce GTX 465 vs Radeon R7 250

Intro

Compare all that to the Radeon R7 250, which has a clock frequency of 1000 MHz and a GDDR5 memory speed of 1150 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It features 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GTX 465		200 Watts
	Difference: 135 Watts (208%)

Memory Bandwidth

The GeForce GTX 465 should theoretically be quite a bit faster than the Radeon R7 250 overall. (explain)

GeForce GTX 465		102592 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 28992 (39%)

Texel Rate

The GeForce GTX 465 is a little bit (more or less 11%) more effective at texture filtering than the Radeon R7 250. (explain)

GeForce GTX 465		26708 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 2708 (11%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 465 is a better choice, by far. (explain)

GeForce GTX 465		19424 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 11424 (143%)

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 maximum amount of information (measured in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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.