GeForce GTX Titan Black vs Geforce GTX 780

Intro

Compare those specs to the Geforce GTX 780, which comes with GPU clock speed of 863 MHz, and 3072 MB of GDDR5 memory running at 1502 MHz through a 384-bit bus. It also features 2304 SPUs, 192 TAUs, and 48 Raster Operation Units.

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 Titan Black		11666 points
Geforce GTX 780		10082 points
	Difference: 1584 (16%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the GeForce GTX Titan Black should in theory be just a bit superior to the Geforce GTX 780 in general. (explain)

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

Texel Rate

The GeForce GTX Titan Black will be a lot (about 29%) better at AF than the Geforce GTX 780. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 47664 (29%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX Titan Black is a better choice, but not by far. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 1248 (3%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the 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 number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.