Radeon HD 4350 vs Radeon HD 5970

Intro

Compare those specifications to the Radeon HD 5970, which comes with GPU clock speed of 725 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 1600 Stream Processors, 160 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350		22 Watts
Radeon HD 5970		294 Watts
	Difference: 272 Watts (1236%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5970 will be 3100% quicker than the Radeon HD 4350 in general, because of its greater bandwidth. (explain)

Radeon HD 5970		256000 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 248000 (3100%)

Texel Rate

The Radeon HD 5970 is much (more or less 4943%) more effective at texture filtering than the Radeon HD 4350. (explain)

Radeon HD 5970		232000 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 227400 (4943%)

Pixel Rate

The Radeon HD 5970 will be quite a bit (more or less 3935%) more effective at FSAA than the Radeon HD 4350, and will be capable of handling higher resolutions more effectively. (explain)

Radeon HD 5970		92800 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 90500 (3935%)

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 (in units of MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video 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 amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant 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.