GeForce 8600 GT 512MB DDR2 vs GeForce GTX 650 Ti

Intro

Compare those specs to the GeForce GTX 650 Ti, which has core clock speeds of 928 MHz on the GPU, and 1350 MHz on the 1024 MB of GDDR5 memory. It features 768 SPUs along with 64 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2		47 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 63 Watts (134%)

Memory Bandwidth

The GeForce GTX 650 Ti, in theory, should perform quite a bit faster than the GeForce 8600 GT 512MB DDR2 overall. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce 8600 GT 512MB DDR2		12800 MB/sec
	Difference: 73600 (575%)

Texel Rate

The GeForce GTX 650 Ti will be quite a bit (approximately 587%) better at AF than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce 8600 GT 512MB DDR2		8640 Mtexels/sec
	Difference: 50752 (587%)

Pixel Rate

The GeForce GTX 650 Ti is much (about 244%) better at anti-aliasing than the GeForce 8600 GT 512MB DDR2, and will be capable of handling higher screen resolutions better. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce 8600 GT 512MB DDR2		4320 Mpixels/sec
	Difference: 10528 (244%)

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 largest amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

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