GeForce 9800 GX2 vs GeForce GT 130

Intro

Compare all that to the GeForce GT 130, which uses a 55 nm design. nVidia has clocked the core frequency at 500 MHz. The DDR2 RAM runs at a speed of 250 MHz on this card. It features 48 SPUs along with 24 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130		75 Watts
GeForce 9800 GX2		197 Watts
	Difference: 122 Watts (163%)

Memory Bandwidth

The GeForce 9800 GX2, in theory, should perform quite a bit faster than the GeForce GT 130 in general. (explain)

GeForce 9800 GX2		128000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 116000 (967%)

Texel Rate

The GeForce 9800 GX2 will be a lot (approximately 540%) faster with regards to AF than the GeForce GT 130. (explain)

GeForce 9800 GX2		76800 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 64800 (540%)

Pixel Rate

The GeForce 9800 GX2 is much (about 140%) better at anti-aliasing than the GeForce GT 130, and also able to handle higher screen resolutions better. (explain)

GeForce 9800 GX2		19200 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 11200 (140%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many 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.