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GeForce GTX 1660 Ti vs Geforce GTX 780

Intro

The GeForce GTX 1660 Ti uses a 12 nm design. nVidia has clocked the core frequency at 1500 MHz. The GDDR6 RAM works at a frequency of 1500 MHz on this particular model. It features 1536 SPUs as well as 96 Texture Address Units and 48 Rasterization Operator Units.

Compare all of that to the Geforce GTX 780, which comes with clock speeds of 863 MHz on the GPU, and 1502 MHz on the 3072 MB of GDDR5 memory. It features 2304 SPUs along with 192 Texture Address Units and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti 120 Watts
Geforce GTX 780 250 Watts
Difference: 130 Watts (108%)

Memory Bandwidth

In theory, the GeForce GTX 1660 Ti should perform a bit faster than the Geforce GTX 780 in general. (explain)

GeForce GTX 1660 Ti 294912 MB/sec
Geforce GTX 780 288384 MB/sec
Difference: 6528 (2%)

Texel Rate

The Geforce GTX 780 should be just a bit (more or less 15%) more effective at texture filtering than the GeForce GTX 1660 Ti. (explain)

Geforce GTX 780 165696 Mtexels/sec
GeForce GTX 1660 Ti 144000 Mtexels/sec
Difference: 21696 (15%)

Pixel Rate

The GeForce GTX 1660 Ti is a lot (approximately 74%) better at full screen anti-aliasing than the Geforce GTX 780, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 1660 Ti 72000 Mpixels/sec
Geforce GTX 780 41424 Mpixels/sec
Difference: 30576 (74%)

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 1660 Ti

Amazon.com

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Geforce GTX 780

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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 1660 Ti Geforce GTX 780
Manufacturer nVidia nVidia
Year February 2019 May 2013
Code Name TU116-400-A1 GK110
Memory 6144 MB 3072 MB
Core Speed 1500 MHz 863 MHz
Memory Speed 1500 GB/s 6008 MHz
Power (Max TDP) 120 watts 250 watts
Bandwidth 294912 MB/sec 288384 MB/sec
Texel Rate 144000 Mtexels/sec 165696 Mtexels/sec
Pixel Rate 72000 Mpixels/sec 41424 Mpixels/sec
Unified Shaders 1536 2304
Texture Mapping Units 96 192
Render Output Units 48 48
Bus Type GDDR6 GDDR5
Bus Width 192-bit 384-bit
Fab Process 12 nm 28 nm
Transistors 6600 million 7080 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.0
OpenGL Version OpenGL 4.6 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. 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 fill rate is also dependant on many 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 1660 Ti

Amazon.com

Check prices at:

Geforce GTX 780

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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