GeForce 9500 GT 1GB GDDR3 vs GeForce GTS 450 1GB

Intro

Compare those specifications to the GeForce GTS 450 1GB, which features 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 1GB GDDR3		50 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 56 Watts (112%)

Memory Bandwidth

Performance-wise, the GeForce GTS 450 1GB should theoretically be quite a bit better than the GeForce 9500 GT 1GB GDDR3 overall. (explain)

GeForce GTS 450 1GB		57728 MB/sec
GeForce 9500 GT 1GB GDDR3		25600 MB/sec
	Difference: 32128 (126%)

Texel Rate

The GeForce GTS 450 1GB will be much (approximately 185%) more effective at AF than the GeForce 9500 GT 1GB GDDR3. (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
GeForce 9500 GT 1GB GDDR3		8800 Mtexels/sec
	Difference: 16256 (185%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTS 450 1GB is superior to the GeForce 9500 GT 1GB GDDR3, by far. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
GeForce 9500 GT 1GB GDDR3		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 largest amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher 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 number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.