GeForce 820M vs GeForce 9600 GT 1GB

Intro

Compare all of that to the GeForce 9600 GT 1GB, which uses a 65/55 nm design. nVidia has set the core frequency at 650 MHz. The GDDR3 memory runs at a frequency of 900 MHz on this specific card. It features 64 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 820M		15 Watts
GeForce 9600 GT 1GB		95 Watts
	Difference: 80 Watts (533%)

Memory Bandwidth

Theoretically speaking, the GeForce 9600 GT 1GB should perform a lot faster than the GeForce 820M in general. (explain)

GeForce 9600 GT 1GB		57600 MB/sec
GeForce 820M		16000 MB/sec
	Difference: 41600 (260%)

Texel Rate

The GeForce 9600 GT 1GB will be much (approximately 81%) faster with regards to texture filtering than the GeForce 820M. (explain)

GeForce 9600 GT 1GB		20800 Mtexels/sec
GeForce 820M		11504 Mtexels/sec
	Difference: 9296 (81%)

Pixel Rate

The GeForce 9600 GT 1GB will be much (about 262%) better at anti-aliasing than the GeForce 820M, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce 9600 GT 1GB		10400 Mpixels/sec
GeForce 820M		2876 Mpixels/sec
	Difference: 7524 (262%)

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 across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.