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GeForce GTX 780 Ti vs GeForce GTX Titan

Intro

The GeForce GTX 780 Ti features a core clock frequency of 875 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 384-bit memory bus, and makes use of a 28 nm design. It features 2880 SPUs, 240 TAUs, and 48 Raster Operation Units.

Compare those specs to the GeForce GTX Titan, which comes with a core clock frequency of 837 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 384-bit memory bus, and makes use of a 28 nm design. It features 2688 SPUs, 224 Texture Address Units, and 48 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GTX 780 Ti is 17% quicker than the GeForce GTX Titan in general, due to its higher data rate. (explain)

GeForce GTX 780 Ti 336000 MB/sec
GeForce GTX Titan 288384 MB/sec
Difference: 47616 (17%)

Texel Rate

The GeForce GTX 780 Ti should be a small bit (more or less 12%) more effective at anisotropic filtering than the GeForce GTX Titan. (explain)

GeForce GTX 780 Ti 210000 Mtexels/sec
GeForce GTX Titan 187488 Mtexels/sec
Difference: 22512 (12%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 780 Ti is a better choice, but it probably won't make a huge difference. (explain)

GeForce GTX 780 Ti 42000 Mpixels/sec
GeForce GTX Titan 40176 Mpixels/sec
Difference: 1824 (5%)

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

GeForce GTX 780 Ti

Amazon.com

GeForce GTX Titan

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

Model GeForce GTX 780 Ti GeForce GTX Titan
Manufacturer nVidia nVidia
Year November 2013 February 2013
Code Name GK110 GK110
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 3072 MB 6144 MB
Core Speed 875 MHz 837 MHz
Shader Speed N/A MHz 837 MHz
Memory Speed 1750 MHz (7000 MHz effective) 1502 MHz (6008 MHz effective)
Unified Shaders 2880 2688
Texture Mapping Units 240 224
Render Output Units 48 48
Bus Type GDDR5 GDDR5
Bus Width 384-bit 384-bit
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.4 OpenGL 4.3
Power (Max TDP) 250 watts 250 watts
Shader Model 5.0 5.0
Bandwidth 336000 MB/sec 288384 MB/sec
Texel Rate 210000 Mtexels/sec 187488 Mtexels/sec
Pixel Rate 42000 Mpixels/sec 40176 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated 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 is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Comments

2 Responses to “GeForce GTX 780 Ti vs GeForce GTX Titan”
Rain says:
holy crap the gtx 780 ti destroys the titan and is much less money
R says:
with 6 gb ram Titan can win if it's running some super high resolution graphics like 7680 x 1440

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