GeForce GT 220 GDDR3 vs GeForce GTX 965M

Intro

Compare those specifications to the GeForce GTX 965M, which uses a 28 nm design. nVidia has set the core frequency at 944 MHz. The GDDR5 memory works at a speed of 1000 MHz on this model. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTX 965M		60 Watts
	Difference: 2 Watts (3%)

Memory Bandwidth

The GeForce GTX 965M, in theory, should perform quite a bit faster than the GeForce GT 220 GDDR3 in general. (explain)

GeForce GTX 965M		64000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 31616 (98%)

Texel Rate

The GeForce GTX 965M will be a lot (about 504%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 50416 (504%)

Pixel Rate

The GeForce GTX 965M should be a lot (about 504%) better at AA than the GeForce GT 220 GDDR3, and capable of handling higher resolutions better. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 25208 (504%)

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 transferred across the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.