GeForce GT 210 vs Radeon HD 4650 512MB

Intro

Compare that to the Radeon HD 4650 512MB, which features GPU clock speed of 600 MHz, and 512 MB of DDR2 memory set to run at 500 MHz through a 128-bit bus. It also is made up of 320(64x5) SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 210		31 Watts
Radeon HD 4650 512MB		55 Watts
	Difference: 24 Watts (77%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4650 512MB should be 25% faster than the GeForce GT 210 overall, because of its greater data rate. (explain)

Radeon HD 4650 512MB		16000 MB/sec
GeForce GT 210		12800 MB/sec
	Difference: 3200 (25%)

Texel Rate

The Radeon HD 4650 512MB is much (approximately 307%) better at anisotropic filtering than the GeForce GT 210. (explain)

Radeon HD 4650 512MB		19200 Mtexels/sec
GeForce GT 210		4712 Mtexels/sec
	Difference: 14488 (307%)

Pixel Rate

The Radeon HD 4650 512MB is a lot (about 104%) better at AA than the GeForce GT 210, and capable of handling higher resolutions better. (explain)

Radeon HD 4650 512MB		4800 Mpixels/sec
GeForce GT 210		2356 Mpixels/sec
	Difference: 2444 (104%)

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 max amount of information (measured in MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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