GeForce GTX 1080 vs GeForce GTX 460 1GB

Intro

Compare all of that to the GeForce GTX 460 1GB, which uses a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 RAM is set to run at a speed of 900 MHz on this card. It features 336 SPUs along with 56 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 1GB		160 Watts
GeForce GTX 1080		180 Watts
	Difference: 20 Watts (13%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 1080 should theoretically be much better than the GeForce GTX 460 1GB overall. (explain)

GeForce GTX 1080		327680 MB/sec
GeForce GTX 460 1GB		115200 MB/sec
	Difference: 212480 (184%)

Texel Rate

The GeForce GTX 1080 should be quite a bit (approximately 580%) more effective at anisotropic filtering than the GeForce GTX 460 1GB. (explain)

GeForce GTX 1080		257120 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 219320 (580%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 1080 is the winner, and very much so. (explain)

GeForce GTX 1080		102848 Mpixels/sec
GeForce GTX 460 1GB		21600 Mpixels/sec
	Difference: 81248 (376%)

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 maximum amount of data (measured in MB per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends 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 maximum fill rate.