GeForce GTX 980 vs Geforce GTX 770

Intro

Compare that to the Geforce GTX 770, which makes use of a 28 nm design. nVidia has clocked the core frequency at 1046 MHz. The GDDR5 RAM runs at a speed of 1753 MHz on this model. It features 1536 SPUs as well as 128 TAUs and 32 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.

3DMark Fire Strike Graphics Score

GeForce GTX 980		13552 points
Geforce GTX 770		7854 points
	Difference: 5698 (73%)

Ethereum Mining Hash Rate

GeForce GTX 980		20 Mh/s
Geforce GTX 770		14 Mh/s
	Difference: 6 (43%)

Zcash Mining Hash Rate

GeForce GTX 980		408 Sol/s
Geforce GTX 770		70 Sol/s
	Difference: 338 (483%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
Geforce GTX 770		230 Watts
	Difference: 65 Watts (39%)

Memory Bandwidth

In theory, the Geforce GTX 770 should be 0% faster than the GeForce GTX 980 in general, due to its higher bandwidth. (explain)

Geforce GTX 770		224384 MB/sec
GeForce GTX 980		224000 MB/sec
	Difference: 384 (0%)

Texel Rate

The GeForce GTX 980 should be a bit (approximately 8%) more effective at anisotropic filtering than the Geforce GTX 770. (explain)

GeForce GTX 980		144128 Mtexels/sec
Geforce GTX 770		133888 Mtexels/sec
	Difference: 10240 (8%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 980 is superior to the Geforce GTX 770, and very much so. (explain)

GeForce GTX 980		72064 Mpixels/sec
Geforce GTX 770		33472 Mpixels/sec
	Difference: 38592 (115%)

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 data (in units of MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 processed in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.