GeForce 8500 GT vs GeForce GTX 650 Ti

Intro

Compare that to the GeForce GTX 650 Ti, which features core speeds of 928 MHz on the GPU, and 1350 MHz on the 1024 MB of GDDR5 RAM. It features 768 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT		45 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 65 Watts (144%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti should be 575% quicker than the GeForce 8500 GT overall, because of its higher data rate. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 73600 (575%)

Texel Rate

The GeForce GTX 650 Ti will be much (more or less 1550%) better at anisotropic filtering than the GeForce 8500 GT. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 55792 (1550%)

Pixel Rate

The GeForce GTX 650 Ti should be much (approximately 725%) better at FSAA than the GeForce 8500 GT, and also capable of handling higher screen resolutions better. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 13048 (725%)

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 max amount of information (counted in MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 processed per second. This is calculated by multiplying the total amount of texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.