GeForce 9500 GT DDR2 vs GeForce GTS 450

Intro

Compare those specs to the GeForce GTS 450, which makes use of a 40 nm design. nVidia has clocked the core speed at 783 MHz. The GDDR5 memory is set to run at a speed of 902 MHz on this specific card. It features 192 SPUs as well as 32 TAUs and 16 ROPs.

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

In theory, the GeForce GTS 450 should be a lot faster than the GeForce 9500 GT DDR2 overall. (explain)

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

Texel Rate

The GeForce GTS 450 is a lot (more or less 185%) faster with regards to anisotropic 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

The GeForce GTS 450 should be much (more or less 185%) more effective at AA than the GeForce 9500 GT DDR2, and capable of handling higher screen resolutions without losing too much performance. (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 max amount of data (measured in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.