GeForce 8600 GS (OEM) vs GeForce GTX 660 Ti

Intro

Compare all that to the GeForce GTX 660 Ti, which makes use of a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this particular model. It features 1344 SPUs as well as 112 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GS (OEM)		47 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 103 Watts (219%)

Memory Bandwidth

The GeForce GTX 660 Ti should theoretically perform quite a bit faster than the GeForce 8600 GS (OEM) overall. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce 8600 GS (OEM)		12800 MB/sec
	Difference: 131200 (1025%)

Texel Rate

The GeForce GTX 660 Ti is quite a bit (approximately 1086%) more effective at AF than the GeForce 8600 GS (OEM). (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce 8600 GS (OEM)		8640 Mtexels/sec
	Difference: 93840 (1086%)

Pixel Rate

The GeForce GTX 660 Ti is much (about 408%) better at FSAA than the GeForce 8600 GS (OEM), and able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce 8600 GS (OEM)		4320 Mpixels/sec
	Difference: 17640 (408%)

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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock 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 output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.