GeForce 9800 GX2 vs GeForce GT 340 1GB

Intro

Compare those specs to the GeForce GT 340 1GB, which comes with GPU core speed of 550 MHz, and 1024 MB of GDDR5 RAM set to run at 850 MHz through a 128-bit bus. It also is comprised of 96 SPUs, 32 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce 9800 GX2		197 Watts
	Difference: 128 Watts (186%)

Memory Bandwidth

The GeForce 9800 GX2 should theoretically perform quite a bit faster than the GeForce GT 340 1GB in general. (explain)

GeForce 9800 GX2		128000 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 73600 (135%)

Texel Rate

The GeForce 9800 GX2 should be quite a bit (more or less 336%) faster with regards to texture filtering than the GeForce GT 340 1GB. (explain)

GeForce 9800 GX2		76800 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 59200 (336%)

Pixel Rate

The GeForce 9800 GX2 should be quite a bit (approximately 336%) faster with regards to FSAA than the GeForce GT 340 1GB, and should be able to handle higher resolutions while still performing well. (explain)

GeForce 9800 GX2		19200 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 14800 (336%)

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 maximum amount of information (measured in megabytes per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the 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 clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of 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.