GeForce 9500 GT DDR2 vs GeForce GT 220 GDDR3

Intro

Compare those specifications to the GeForce GT 220 GDDR3, which features GPU clock speed of 625 MHz, and 512 MB of GDDR3 memory set to run at 1012 MHz through a 128-bit bus. It also is comprised of 48 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
GeForce GT 220 GDDR3		58 Watts
	Difference: 8 Watts (16%)

Memory Bandwidth

Performance-wise, the GeForce GT 220 GDDR3 should in theory be much superior to the GeForce 9500 GT DDR2 in general. (explain)

GeForce GT 220 GDDR3		32384 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 16384 (102%)

Texel Rate

The GeForce GT 220 GDDR3 should be a small bit (about 14%) better at anisotropic filtering than the GeForce 9500 GT DDR2. (explain)

GeForce GT 220 GDDR3		10000 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 1200 (14%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 220 GDDR3 is the winner, but only just. (explain)

GeForce GT 220 GDDR3		5000 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 600 (14%)

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 data (counted in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can 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 clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.