GeForce 8600 GTS vs Geforce GTX 770

Intro

Compare all of that to the Geforce GTX 770, which features GPU clock speed of 1046 MHz, and 2048 MB of GDDR5 RAM set to run at 1753 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GTS		75 Watts
Geforce GTX 770		230 Watts
	Difference: 155 Watts (207%)

Memory Bandwidth

The Geforce GTX 770, in theory, should be quite a bit faster than the GeForce 8600 GTS in general. (explain)

Geforce GTX 770		224384 MB/sec
GeForce 8600 GTS		32000 MB/sec
	Difference: 192384 (601%)

Texel Rate

The Geforce GTX 770 should be a lot (approximately 1140%) better at texture filtering than the GeForce 8600 GTS. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce 8600 GTS		10800 Mtexels/sec
	Difference: 123088 (1140%)

Pixel Rate

The Geforce GTX 770 will be a lot (more or less 520%) faster with regards to FSAA than the GeForce 8600 GTS, and also should be able to handle higher screen resolutions more effectively. (explain)

Geforce GTX 770		33472 Mpixels/sec
GeForce 8600 GTS		5400 Mpixels/sec
	Difference: 28072 (520%)

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 maximum amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, the result 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the 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 number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 get to the maximum fill rate.