GeForce GT 220 GDDR3 vs GeForce GTX 950M

Intro

Compare that to the GeForce GTX 950M, which has core clock speeds of 914 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce GT 220 GDDR3		58 Watts
	Difference: 3 Watts (5%)

Memory Bandwidth

The GeForce GT 220 GDDR3 should theoretically be just a bit faster than the GeForce GTX 950M overall. (explain)

GeForce GT 220 GDDR3		32384 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 384 (1%)

Texel Rate

The GeForce GTX 950M is much (about 266%) faster with regards to anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 950M		36560 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 26560 (266%)

Pixel Rate

The GeForce GTX 950M should be a lot (more or less 192%) more effective at FSAA than the GeForce GT 220 GDDR3, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 9624 (192%)

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 largest amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.