GeForce 9500 GT 512MB GDDR3 vs GeForce GTX 1080

Intro

Compare those specifications to the GeForce GTX 1080, which features a core clock frequency of 1607 MHz and a GDDR5X memory speed of 1251 MHz. It also features a 256-bit bus, and makes use of a 16 nm design. It is comprised of 2560 SPUs, 160 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 512MB GDDR3		50 Watts
GeForce GTX 1080		180 Watts
	Difference: 130 Watts (260%)

Memory Bandwidth

The GeForce GTX 1080 should in theory perform quite a bit faster than the GeForce 9500 GT 512MB GDDR3 overall. (explain)

GeForce GTX 1080		327680 MB/sec
GeForce 9500 GT 512MB GDDR3		25600 MB/sec
	Difference: 302080 (1180%)

Texel Rate

The GeForce GTX 1080 should be much (about 2822%) more effective at texture filtering than the GeForce 9500 GT 512MB GDDR3. (explain)

GeForce GTX 1080		257120 Mtexels/sec
GeForce 9500 GT 512MB GDDR3		8800 Mtexels/sec
	Difference: 248320 (2822%)

Pixel Rate

The GeForce GTX 1080 is quite a bit (about 2237%) faster with regards to full screen anti-aliasing than the GeForce 9500 GT 512MB GDDR3, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 1080		102848 Mpixels/sec
GeForce 9500 GT 512MB GDDR3		4400 Mpixels/sec
	Difference: 98448 (2237%)

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: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.