GeForce GTX 280 vs GeForce GTX 780 Ti

Intro

Compare that to the GeForce GTX 780 Ti, which uses a 28 nm design. nVidia has clocked the core frequency at 875 MHz. The GDDR5 memory runs at a frequency of 1750 MHz on this card. It features 2880 SPUs as well as 240 TAUs and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 280		236 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 14 Watts (6%)

Memory Bandwidth

The GeForce GTX 780 Ti, in theory, should be much faster than the GeForce GTX 280 overall. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GTX 280		141696 MB/sec
	Difference: 194304 (137%)

Texel Rate

The GeForce GTX 780 Ti should be quite a bit (about 336%) better at anisotropic filtering than the GeForce GTX 280. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GTX 280		48160 Mtexels/sec
	Difference: 161840 (336%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 780 Ti is the winner, by far. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GTX 280		19264 Mpixels/sec
	Difference: 22736 (118%)

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 data (in units of MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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