GeForce GT 220 GDDR3 vs GeForce GTX 970M

Intro

Compare those specifications to the GeForce GTX 970M, which comes with core speeds of 924 MHz on the GPU, and 1000 MHz on the 3072 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 TAUs and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTX 970M		75 Watts
	Difference: 17 Watts (29%)

Memory Bandwidth

The GeForce GTX 970M should theoretically perform much faster than the GeForce GT 220 GDDR3 in general. (explain)

GeForce GTX 970M		96000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 63616 (196%)

Texel Rate

The GeForce GTX 970M is a lot (about 639%) more effective at anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 63920 (639%)

Pixel Rate

The GeForce GTX 970M will be much (approximately 787%) more effective at FSAA than the GeForce GT 220 GDDR3, and also capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 39352 (787%)

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 megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock 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 fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.