GeForce GTX 465 vs Geforce GTX 690

Intro

Compare all that to the Geforce GTX 690, which has a core clock speed of 915 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It features 1536 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465		200 Watts
Geforce GTX 690		300 Watts
	Difference: 100 Watts (50%)

Memory Bandwidth

Theoretically, the Geforce GTX 690 should perform a lot faster than the GeForce GTX 465 in general. (explain)

Geforce GTX 690		384512 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 281920 (275%)

Texel Rate

The Geforce GTX 690 should be a lot (about 777%) faster with regards to texture filtering than the GeForce GTX 465. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 207532 (777%)

Pixel Rate

If using a high resolution is important to you, then the Geforce GTX 690 is the winner, and very much so. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 39136 (201%)

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 information (counted in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 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 clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.