GeForce 8500 GT vs GeForce GTX 750

Intro

Compare that to the GeForce GTX 750, which features a clock speed of 1020 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 512 SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT		45 Watts
GeForce GTX 750		55 Watts
	Difference: 10 Watts (22%)

Memory Bandwidth

In theory, the GeForce GTX 750 should perform much faster than the GeForce 8500 GT in general. (explain)

GeForce GTX 750		80000 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 67200 (525%)

Texel Rate

The GeForce GTX 750 will be quite a bit (about 807%) faster with regards to texture filtering than the GeForce 8500 GT. (explain)

GeForce GTX 750		32640 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 29040 (807%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 750 is superior to the GeForce 8500 GT, by a large margin. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 14520 (807%)

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

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at 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 graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.