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GeForce GTX 780 Ti vs GeForce GTX 980

Intro

The GeForce GTX 780 Ti has a GPU core speed of 875 MHz, and the 3072 MB of GDDR5 RAM is set to run at 1750 MHz through a 384-bit bus. It also is made up of 2880 Stream Processors, 240 Texture Address Units, and 48 Raster Operation Units.

Compare all that to the GeForce GTX 980, which uses a 28 nm design. nVidia has set the core speed at 1126 MHz. The GDDR5 memory is set to run at a frequency of 1750 MHz on this specific card. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator 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 780 Ti 10900 points
Difference: 2652 (24%)

Grand Theft Auto V | 1920x1080 | Very High

GeForce GTX 980 63 FPS
GeForce GTX 780 Ti 56 FPS
Difference: 7 (13%)

Ethereum Mining Hash Rate

GeForce GTX 980 20 Mh/s
GeForce GTX 780 Ti 19 Mh/s
Difference: 1 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980 165 Watts
GeForce GTX 780 Ti 250 Watts
Difference: 85 Watts (52%)

Memory Bandwidth

In theory, the GeForce GTX 780 Ti should be a lot faster than the GeForce GTX 980 overall. (explain)

GeForce GTX 780 Ti 336000 MB/sec
GeForce GTX 980 224000 MB/sec
Difference: 112000 (50%)

Texel Rate

The GeForce GTX 780 Ti should be much (about 46%) more effective at anisotropic filtering than the GeForce GTX 980. (explain)

GeForce GTX 780 Ti 210000 Mtexels/sec
GeForce GTX 980 144128 Mtexels/sec
Difference: 65872 (46%)

Pixel Rate

The GeForce GTX 980 will be a lot (about 72%) more effective at anti-aliasing than the GeForce GTX 780 Ti, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 980 72064 Mpixels/sec
GeForce GTX 780 Ti 42000 Mpixels/sec
Difference: 30064 (72%)

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 780 Ti

Amazon.com

GeForce GTX 980

Amazon.com

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 780 Ti GeForce GTX 980
Manufacturer nVidia nVidia
Year November 2013 September 2014
Code Name GK110 GM204-400
Memory 3072 MB 4096 MB
Core Speed 875 MHz 1126 MHz
Memory Speed 7000 MHz 7000 MHz
Power (Max TDP) 250 watts 165 watts
Bandwidth 336000 MB/sec 224000 MB/sec
Texel Rate 210000 Mtexels/sec 144128 Mtexels/sec
Pixel Rate 42000 Mpixels/sec 72064 Mpixels/sec
Unified Shaders 2880 2048
Texture Mapping Units 240 128
Render Output Units 48 64
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 7080 million 5200 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.4 OpenGL 4.5

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 texture units of the card by the core speed of the chip. The higher 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 a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 780 Ti

Amazon.com

GeForce GTX 980

Amazon.com

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.

Comments

3 Responses to “GeForce GTX 780 Ti vs GeForce GTX 980”
jchap1590 says:

This comparison is slightly misleading. Maxwell is more efficient than Kepler and so a narrower bus width (256 -bit for Maxwell, 384-bit for Kepler) does not mean Maxwell is objectively slower than its respective Kepler counterpart. A direct (paper spec) comparison will always be significantly misleading in this regard, when comparing Maxwell to previous generations.

Le Dongcopteur says:

Err.. seems like you ignored the last sentence...

According to this hw compare the HD 5970 still is the fastest card, nonsense.

...are all just theoretical...

Keyeung says:

Well I am looking to upgrade from a 780ti and was fortunate enough to borrow a 980. With he target system and software I use my findings were the 980 was significantly slower than the 780ti

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