GeForce 8800 GTS (G92) vs Radeon R7 250

Intro

Compare all that to the Radeon R7 250, which has a clock speed of 1000 MHz and a GDDR5 memory speed of 1150 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce 8800 GTS (G92)		135 Watts
	Difference: 70 Watts (108%)

Memory Bandwidth

Performance-wise, the Radeon R7 250 should theoretically be a small bit superior to the GeForce 8800 GTS (G92) in general. (explain)

Radeon R7 250		73600 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 11520 (19%)

Texel Rate

The GeForce 8800 GTS (G92) is a lot (about 73%) better at AF than the Radeon R7 250. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 17600 (73%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 8800 GTS (G92) is a better choice, by far. (explain)

GeForce 8800 GTS (G92)		10400 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 2400 (30%)

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 (in units of MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better 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 in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 memory bandwidth is, the lower the ability to get to the max fill rate.