GeForce 9500 GT DDR2 vs Geforce GTX 780

Intro

Compare all of that to the Geforce GTX 780, which uses a 28 nm design. nVidia has set the core speed at 863 MHz. The GDDR5 memory runs at a frequency of 1502 MHz on this specific model. It features 2304 SPUs as well as 192 TAUs and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
Geforce GTX 780		250 Watts
	Difference: 200 Watts (400%)

Memory Bandwidth

The Geforce GTX 780 should in theory be a lot faster than the GeForce 9500 GT DDR2 in general. (explain)

Geforce GTX 780		288384 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 272384 (1702%)

Texel Rate

The Geforce GTX 780 should be much (more or less 1783%) better at texture filtering than the GeForce 9500 GT DDR2. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 156896 (1783%)

Pixel Rate

The Geforce GTX 780 is quite a bit (approximately 841%) better at anti-aliasing than the GeForce 9500 GT DDR2, and also should be capable of handling higher resolutions without slowing down too much. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 37024 (841%)

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 data (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.