GeForce GTX 780 Ti vs Geforce GTX 690

Intro

Compare those specs to the Geforce GTX 690, which has core speeds of 915 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs along with 128 Texture Address Units and 32 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 690		13111 points
GeForce GTX 780 Ti		10900 points
	Difference: 2211 (20%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 780 Ti		250 Watts
Geforce GTX 690		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 690 should theoretically be a bit superior to the GeForce GTX 780 Ti in general. (explain)

Geforce GTX 690		384512 MB/sec
GeForce GTX 780 Ti		336000 MB/sec
	Difference: 48512 (14%)

Texel Rate

The Geforce GTX 690 will be a bit (about 12%) better at anisotropic filtering than the GeForce GTX 780 Ti. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce GTX 780 Ti		210000 Mtexels/sec
	Difference: 24240 (12%)

Pixel Rate

The Geforce GTX 690 is a lot (approximately 39%) faster with regards to AA than the GeForce GTX 780 Ti, and should be able to handle higher screen resolutions better. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce GTX 780 Ti		42000 Mpixels/sec
	Difference: 16560 (39%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write 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 clock 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.