GeForce 8800 GTX vs Radeon R7 250

Intro

Compare those specifications to the Radeon R7 250, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM runs at a frequency of 1150 MHz on this specific card. It features 384 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

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

The GeForce 8800 GTX should theoretically perform a little 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 will be quite a bit (about 53%) more effective at 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 (approximately 73%) more effective at AA than the Radeon R7 250, and will be capable of handling higher resolutions more effectively. (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 information (in units of megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 are processed in one 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 higher the texel rate, the better the 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 amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour 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 is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.