GeForce GTX 465 vs Geforce GTX 690

Intro

Compare all of that to the Geforce GTX 690, which has a clock speed of 915 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of 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 465		200 Watts
Geforce GTX 690		300 Watts
	Difference: 100 Watts (50%)

Memory Bandwidth

Performance-wise, the Geforce GTX 690 should theoretically be much better than the GeForce GTX 465 overall. (explain)

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

Texel Rate

The Geforce GTX 690 should be quite a bit (approximately 777%) faster with regards to anisotropic 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 running with a high resolution is important to you, then the Geforce GTX 690 is superior to the GeForce GTX 465, by a large margin. (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 maximum amount of information (in units of MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics 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 maximum number of pixels the video card could possibly record to the 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 drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.