GeForce 8800 GTX vs Radeon R7 250

Intro

Compare that to the Radeon R7 250, which comes with core speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce 8800 GTX		155 Watts
	Difference: 90 Watts (138%)

Memory Bandwidth

In theory, the GeForce 8800 GTX should perform a small bit faster than the Radeon R7 250 in general. (explain)

GeForce 8800 GTX		86400 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 12800 (17%)

Texel Rate

The GeForce 8800 GTX should be much (more or less 53%) faster with regards to AF than the Radeon R7 250. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 12800 (53%)

Pixel Rate

The GeForce 8800 GTX should be much (more or less 73%) faster with regards to anti-aliasing than the Radeon R7 250, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 5800 (73%)

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 data (in units of MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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