GeForce 9800 GX2 vs Radeon HD 4350

Intro

Compare those specifications to the Radeon HD 4350, which has a clock speed of 575 MHz and a DDR2 memory speed of 500 MHz. It also makes use of a 64-bit memory bus, and uses a 55 nm design. It features 80(16x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350		22 Watts
GeForce 9800 GX2		197 Watts
	Difference: 175 Watts (795%)

Memory Bandwidth

In theory, the GeForce 9800 GX2 is 1500% faster than the Radeon HD 4350 in general, due to its higher data rate. (explain)

GeForce 9800 GX2		128000 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 120000 (1500%)

Texel Rate

The GeForce 9800 GX2 is a lot (about 1570%) more effective at AF than the Radeon HD 4350. (explain)

GeForce 9800 GX2		76800 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 72200 (1570%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 9800 GX2 is a better choice, and very much so. (explain)

GeForce 9800 GX2		19200 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 16900 (735%)

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 max amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.