GeForce GTX 260 Core 216 vs Geforce GTX 690

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260 Core 216		202 Watts
Geforce GTX 690		300 Watts
	Difference: 98 Watts (49%)

Memory Bandwidth

In theory, the Geforce GTX 690 will be 244% faster than the GeForce GTX 260 Core 216 overall, due to its higher data rate. (explain)

Geforce GTX 690		384512 MB/sec
GeForce GTX 260 Core 216		111888 MB/sec
	Difference: 272624 (244%)

Texel Rate

The Geforce GTX 690 should be much (more or less 465%) faster with regards to anisotropic filtering than the GeForce GTX 260 Core 216. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 192768 (465%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 690 is a better choice, and very much so. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 42432 (263%)

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 moved across the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.