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GeForce GTX 980 vs Geforce GTX 770

Intro

The GeForce GTX 980 makes use of a 28 nm design. nVidia has set the core speed at 1126 MHz. The GDDR5 RAM is set to run at a frequency of 1750 MHz on this particular model. It features 2048 SPUs along with 128 TAUs and 64 ROPs.

Compare all that to the Geforce GTX 770, which comes with GPU clock speed of 1046 MHz, and 2048 MB of GDDR5 memory set to run at 1753 MHz through a 256-bit bus. It also is comprised of 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

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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

As far as performance goes, the Geforce GTX 770 should theoretically be a bit superior to the GeForce GTX 980 overall. (explain)

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

Texel Rate

The GeForce GTX 980 will be a bit (approximately 8%) better at AF than the Geforce GTX 770. (explain)

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

Pixel Rate

The GeForce GTX 980 should be a lot (more or less 115%) faster with regards to full screen anti-aliasing than the Geforce GTX 770, and also will be able to handle higher screen resolutions better. (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

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GeForce GTX 980

Amazon.com

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Geforce GTX 770

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 980 Geforce GTX 770
Manufacturer nVidia nVidia
Year September 2014 May 2013
Code Name GM204-400 GK104
Memory 4096 MB 2048 MB
Core Speed 1126 MHz 1046 MHz
Memory Speed 7000 MHz 7012 MHz
Power (Max TDP) 165 watts 230 watts
Bandwidth 224000 MB/sec 224384 MB/sec
Texel Rate 144128 Mtexels/sec 133888 Mtexels/sec
Pixel Rate 72064 Mpixels/sec 33472 Mpixels/sec
Unified Shaders 2048 1536
Texture Mapping Units 128 128
Render Output Units 64 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 5200 million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.0
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 980

Amazon.com

Check prices at:

Geforce GTX 770

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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