Radeon HD 4350 vs Radeon HD 6870

Intro

Compare those specs to the Radeon HD 6870, which uses a 40 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 RAM runs at a speed of 1050 MHz on this particular model. It features 1120 SPUs as well as 56 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350		22 Watts
Radeon HD 6870		151 Watts
	Difference: 129 Watts (586%)

Memory Bandwidth

Performance-wise, the Radeon HD 6870 should in theory be a lot superior to the Radeon HD 4350 in general. (explain)

Radeon HD 6870		134400 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 126400 (1580%)

Texel Rate

The Radeon HD 6870 should be much (more or less 996%) better at texture filtering than the Radeon HD 4350. (explain)

Radeon HD 6870		50400 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 45800 (996%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6870 is superior to the Radeon HD 4350, and very much so. (explain)

Radeon HD 6870		28800 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 26500 (1152%)

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.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.