GeForce 9500 GT DDR2 vs GeForce GTS 450

Intro

Compare that to the GeForce GTS 450, which has GPU clock speed of 783 MHz, and 512 MB of GDDR5 memory running at 902 MHz through a 128-bit bus. It also is made up of 192 Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
GeForce GTS 450		106 Watts
	Difference: 56 Watts (112%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 450 is 261% faster than the GeForce 9500 GT DDR2 in general, because of its greater data rate. (explain)

GeForce GTS 450		57728 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 41728 (261%)

Texel Rate

The GeForce GTS 450 should be much (more or less 185%) more effective at texture filtering than the GeForce 9500 GT DDR2. (explain)

GeForce GTS 450		25056 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 16256 (185%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTS 450 is superior to the GeForce 9500 GT DDR2, by a large margin. (explain)

GeForce GTS 450		12528 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 8128 (185%)

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 (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core 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 rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.