GeForce GT 220 GDDR3 vs GeForce GTX 465

Intro

Compare that to the GeForce GTX 465, which uses a 40 nm design. nVidia has set the core speed at 607 MHz. The GDDR5 RAM runs at a speed of 802 MHz on this specific card. It features 352 SPUs as well as 44 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTX 465		200 Watts
	Difference: 142 Watts (245%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 465 should in theory be quite a bit superior to the GeForce GT 220 GDDR3 in general. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 70208 (217%)

Texel Rate

The GeForce GTX 465 should be quite a bit (about 167%) better at texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 465		26708 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 16708 (167%)

Pixel Rate

The GeForce GTX 465 is a lot (more or less 288%) faster with regards to anti-aliasing than the GeForce GT 220 GDDR3, and able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 14424 (288%)

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 data (measured in megabytes per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the 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 can be applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.