GeForce GTX 460 SE vs Geforce GTX 690

Intro

Compare those specifications to the Geforce GTX 690, which features a clock speed of 915 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1536 SPUs, 128 TAUs, and 32 ROPs.

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

The Geforce GTX 690 should theoretically perform much faster than the GeForce GTX 460 SE in general. (explain)

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

Texel Rate

The Geforce GTX 690 should be a lot (more or less 651%) more effective at AF 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

The Geforce GTX 690 will be quite a bit (about 182%) better at anti-aliasing than the GeForce GTX 460 SE, and able to handle higher resolutions better. (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: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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