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GeForce GTX 970 vs Geforce GTX 780

Intro

The GeForce GTX 970 has a GPU clock speed of 1050 MHz, and the 4096 MB of GDDR5 RAM is set to run at 1750 MHz through a 256-bit bus. It also features 1664 Stream Processors, 104 TAUs, and 64 Raster Operation Units.

Compare all of that to the Geforce GTX 780, which comes with GPU core speed of 863 MHz, and 3072 MB of GDDR5 RAM running at 1502 MHz through a 384-bit bus. It also is comprised of 2304 Stream Processors, 192 Texture Address Units, and 48 ROPs.

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 970 10867 points
Geforce GTX 780 10082 points
Difference: 785 (8%)

Ethereum Mining Hash Rate

Geforce GTX 780 20 Mh/s
GeForce GTX 970 19 Mh/s
Difference: 1 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970 145 Watts
Geforce GTX 780 250 Watts
Difference: 105 Watts (72%)

Memory Bandwidth

The Geforce GTX 780 should in theory perform quite a bit faster than the GeForce GTX 970 in general. (explain)

Geforce GTX 780 288384 MB/sec
GeForce GTX 970 224000 MB/sec
Difference: 64384 (29%)

Texel Rate

The Geforce GTX 780 is a lot (about 52%) more effective at anisotropic filtering than the GeForce GTX 970. (explain)

Geforce GTX 780 165696 Mtexels/sec
GeForce GTX 970 109200 Mtexels/sec
Difference: 56496 (52%)

Pixel Rate

The GeForce GTX 970 will be much (about 62%) faster with regards to anti-aliasing than the Geforce GTX 780, and capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 970 67200 Mpixels/sec
Geforce GTX 780 41424 Mpixels/sec
Difference: 25776 (62%)

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 970

Amazon.com

Geforce GTX 780

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 970 Geforce GTX 780
Manufacturer nVidia nVidia
Year September 2014 May 2013
Code Name GM204-200 GK110
Memory 4096 MB 3072 MB
Core Speed 1050 MHz 863 MHz
Memory Speed 7000 MHz 6008 MHz
Power (Max TDP) 145 watts 250 watts
Bandwidth 224000 MB/sec 288384 MB/sec
Texel Rate 109200 Mtexels/sec 165696 Mtexels/sec
Pixel Rate 67200 Mpixels/sec 41424 Mpixels/sec
Unified Shaders 1664 2304
Texture Mapping Units 104 192
Render Output Units 64 48
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit
Fab Process 28 nm 28 nm
Transistors 5200 million 7080 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 (in units of megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 applied per second. This number is calculated by multiplying the total texture units of the card by the core clock 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one 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 - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 970

Amazon.com

Geforce GTX 780

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

2 Responses to “GeForce GTX 970 vs Geforce GTX 780”
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.

iseck says:

How it make GTX 780 20M/s Ethereum Mining !

it's very hard i think to do that ?

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