GeForce GT 220 GDDR3 vs GeForce GTX 860M

Intro

Compare that to the GeForce GTX 860M, which features GPU clock speed of 797 MHz, and 4096 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 1152 Stream Processors, 96 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GT 220 GDDR3		58 Watts
	Difference: 13 Watts (29%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 860M is 98% quicker than the GeForce GT 220 GDDR3 in general, due to its greater data rate. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 31616 (98%)

Texel Rate

The GeForce GTX 860M is a lot (more or less 665%) more effective at AF than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 66512 (665%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 860M is superior to the GeForce GT 220 GDDR3, and very much so. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 7752 (155%)

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 (in units of MB per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, 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 number is calculated by multiplying the total texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.