GeForce 9500 GT DDR2 vs GeForce GTS 450 1GB

Intro

Compare all of that to the GeForce GTS 450 1GB, which comes with clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 memory. It features 192 SPUs as well as 32 Texture Address Units 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 1GB		106 Watts
	Difference: 56 Watts (112%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 450 1GB will be 261% faster than the GeForce 9500 GT DDR2 in general, due to its greater bandwidth. (explain)

GeForce GTS 450 1GB		57728 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 41728 (261%)

Texel Rate

The GeForce GTS 450 1GB will be quite a bit (more or less 185%) more effective at AF than the GeForce 9500 GT DDR2. (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 16256 (185%)

Pixel Rate

The GeForce GTS 450 1GB is much (approximately 185%) better at full screen anti-aliasing than the GeForce 9500 GT DDR2, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTS 450 1GB		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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number 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 rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.