GeForce 8800 GS vs Radeon R7 250X

Intro

Compare all that to the Radeon R7 250X, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory works at a speed of 1125 MHz on this card. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
GeForce 8800 GS		105 Watts
	Difference: 10 Watts (11%)

Memory Bandwidth

In theory, the Radeon R7 250X should be a lot faster than the GeForce 8800 GS in general. (explain)

Radeon R7 250X		72000 MB/sec
GeForce 8800 GS		38400 MB/sec
	Difference: 33600 (88%)

Texel Rate

The Radeon R7 250X should be a lot (more or less 52%) more effective at anisotropic filtering than the GeForce 8800 GS. (explain)

Radeon R7 250X		40000 Mtexels/sec
GeForce 8800 GS		26400 Mtexels/sec
	Difference: 13600 (52%)

Pixel Rate

The Radeon R7 250X will be quite a bit (more or less 142%) more effective at full screen anti-aliasing than the GeForce 8800 GS, and also will be able to handle higher resolutions better. (explain)

Radeon R7 250X		16000 Mpixels/sec
GeForce 8800 GS		6600 Mpixels/sec
	Difference: 9400 (142%)

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 (counted in megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of 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 speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.