GeForce 9800 GX2 vs Radeon HD 4350

Intro

Compare those specifications to the Radeon HD 4350, which makes use of a 55 nm design. AMD has set the core speed at 575 MHz. The DDR2 memory is set to run at a speed of 500 MHz on this specific card. It features 80(16x5) SPUs along with 8 Texture Address Units and 4 ROPs.

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

The GeForce 9800 GX2 should in theory be a lot faster than the Radeon HD 4350 overall. (explain)

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

Texel Rate

The GeForce 9800 GX2 will be much (more or less 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

The GeForce 9800 GX2 will be much (about 735%) better at anti-aliasing than the Radeon HD 4350, and also will be capable of handling higher screen resolutions better. (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 (measured in MB 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. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends 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 max fill rate.