GeForce GTX 980 vs Geforce GTX 770

Intro

Compare all of that to the Geforce GTX 770, which features a clock speed of 1046 MHz and a GDDR5 memory frequency of 1753 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is comprised of 1536 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

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

The Geforce GTX 770 should in theory be a little bit faster than the GeForce GTX 980 in general. (explain)

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

Texel Rate

The GeForce GTX 980 will be just a bit (more or less 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 using high levels of AA is important to you, then the GeForce GTX 980 is a better choice, by a large margin. (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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.