GeForce GTX 260 216SP 55 nm vs Geforce GTX 670

Intro

Compare all of that to the Geforce GTX 670, which has a core clock frequency of 915 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1344 SPUs, 112 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670		170 Watts
GeForce GTX 260 216SP 55 nm		171 Watts
	Difference: 1 Watts (1%)

Memory Bandwidth

The Geforce GTX 670 should theoretically perform quite a bit faster than the GeForce GTX 260 216SP 55 nm in general. (explain)

Geforce GTX 670		192000 MB/sec
GeForce GTX 260 216SP 55 nm		111888 MB/sec
	Difference: 80112 (72%)

Texel Rate

The Geforce GTX 670 is much (approximately 147%) better at AF than the GeForce GTX 260 216SP 55 nm. (explain)

Geforce GTX 670		102480 Mtexels/sec
GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
	Difference: 61008 (147%)

Pixel Rate

The Geforce GTX 670 should be quite a bit (more or less 82%) more effective at full screen anti-aliasing than the GeForce GTX 260 216SP 55 nm, and will be able to handle higher resolutions more effectively. (explain)

Geforce GTX 670		29280 Mpixels/sec
GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
	Difference: 13152 (82%)

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.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 are processed per second. This number is calculated by multiplying the total texture units by the core 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.