Radeon HD 4350 vs Radeon HD 4650 1GB

Intro

Compare those specs to the Radeon HD 4650 1GB, which features core clock speeds of 600 MHz on the GPU, and 700 MHz on the 1024 MB of GDDR3 memory. It features 320(64x5) SPUs along with 32 Texture Address Units and 8 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 4650 1GB		55 Watts
	Difference: 33 Watts (150%)

Memory Bandwidth

The Radeon HD 4650 1GB, in theory, should perform much faster than the Radeon HD 4350 overall. (explain)

Radeon HD 4650 1GB		22400 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 14400 (180%)

Texel Rate

The Radeon HD 4650 1GB is a lot (more or less 317%) faster with regards to anisotropic filtering than the Radeon HD 4350. (explain)

Radeon HD 4650 1GB		19200 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 14600 (317%)

Pixel Rate

The Radeon HD 4650 1GB is much (approximately 109%) better at AA than the Radeon HD 4350, and also able to handle higher screen resolutions more effectively. (explain)

Radeon HD 4650 1GB		4800 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 2500 (109%)

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 (in units of MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 calculated by multiplying the total amount of 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 in one second.

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