GeForce GTX 580 vs GeForce GTX 980

Intro

Compare those specs to the GeForce GTX 980, which comes with clock speeds of 1126 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

Grand Theft Auto V | 1920x1080 | Very High

GeForce GTX 980		63 FPS
GeForce GTX 580		25 FPS
	Difference: 38 (152%)

3DMark Fire Strike Graphics Score

GeForce GTX 980		13552 points
GeForce GTX 580		4956 points
	Difference: 8596 (173%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
GeForce GTX 580		244 Watts
	Difference: 79 Watts (48%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 980 will be 16% faster than the GeForce GTX 580 overall, because of its higher bandwidth. (explain)

GeForce GTX 980		224000 MB/sec
GeForce GTX 580		192384 MB/sec
	Difference: 31616 (16%)

Texel Rate

The GeForce GTX 980 is much (about 192%) better at texture filtering than the GeForce GTX 580. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 94720 (192%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 980 is superior to the GeForce GTX 580, and very much so. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce GTX 580		37056 Mpixels/sec
	Difference: 35008 (94%)

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 largest amount of information (in units of MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.