GeForce GTX 460 SE vs Geforce GTX 690

Intro

Compare those specifications to the Geforce GTX 690, which uses a 28 nm design. nVidia has set the core frequency at 915 MHz. The GDDR5 memory works at a speed of 1502 MHz on this model. It features 1536 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 SE		150 Watts
Geforce GTX 690		300 Watts
	Difference: 150 Watts (100%)

Memory Bandwidth

In theory, the Geforce GTX 690 should be 253% faster than the GeForce GTX 460 SE overall, because of its greater bandwidth. (explain)

Geforce GTX 690		384512 MB/sec
GeForce GTX 460 SE		108800 MB/sec
	Difference: 275712 (253%)

Texel Rate

The Geforce GTX 690 will be much (more or less 651%) faster with regards to texture filtering than the GeForce GTX 460 SE. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 203040 (651%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 690 is superior to the GeForce GTX 460 SE, and very much so. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce GTX 460 SE		20800 Mpixels/sec
	Difference: 37760 (182%)

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: Bandwidth is the maximum amount of data (in units of MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 in one second. This is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.