Radeon HD 4350 vs Radeon HD 6950

Intro

Compare those specifications to the Radeon HD 6950, which makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory is set to run at a frequency of 1250 MHz on this particular card. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350		22 Watts
Radeon HD 6950		200 Watts
	Difference: 178 Watts (809%)

Memory Bandwidth

The Radeon HD 6950 should theoretically be much faster than the Radeon HD 4350 overall. (explain)

Radeon HD 6950		160000 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 152000 (1900%)

Texel Rate

The Radeon HD 6950 should be quite a bit (about 1430%) more effective at AF than the Radeon HD 4350. (explain)

Radeon HD 6950		70400 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 65800 (1430%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6950 is a better choice, by a large margin. (explain)

Radeon HD 6950		25600 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 23300 (1013%)

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: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.