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GeForce GTX 980 vs Geforce GTX 770

Intro

The GeForce GTX 980 features core speeds of 1126 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 64 Rasterization Operator Units.

Compare those specs to the Geforce GTX 770, which comes with a core clock speed of 1046 MHz and a GDDR5 memory speed of 1753 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It features 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

In theory, the Geforce GTX 770 should 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 a bit (more or less 8%) faster with regards to 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

The GeForce GTX 980 is a lot (about 115%) better at anti-aliasing than the Geforce GTX 770, and also should 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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 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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