Radeon HD 3470 512MB vs Radeon HD 3650

Intro

Compare those specs to the Radeon HD 3650, which makes use of a 55 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR4 RAM is set to run at a speed of 800 MHz on this specific card. It features 120(24x5) SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 3470 512MB should be just a bit faster than the Radeon HD 3650 overall. (explain)

Radeon HD 3470 512MB		30400 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 4800 (19%)

Texel Rate

The Radeon HD 3650 should be much (approximately 81%) faster with regards to anisotropic filtering than the Radeon HD 3470 512MB. (explain)

Radeon HD 3650		5800 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 2600 (81%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 3470 512MB is the winner, though not by far. (explain)

Radeon HD 3470 512MB		3200 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 300 (10%)

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 MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics 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 most pixels the video card could possibly write 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 core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.