GeForce 830M vs Radeon HD 4550 512MB

Intro

Compare those specs to the Radeon HD 4550 512MB, which uses a 55 nm design. AMD has clocked the core speed at 600 MHz. The GDDR3 memory works at a frequency of 800 MHz on this particular model. It features 80(16x5) SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce 830M will be 13% quicker than the Radeon HD 4550 512MB overall, because of its greater bandwidth. (explain)

GeForce 830M		14400 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 1600 (13%)

Texel Rate

The GeForce 830M is much (more or less 243%) more effective at AF than the Radeon HD 4550 512MB. (explain)

GeForce 830M		16464 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 11664 (243%)

Pixel Rate

The GeForce 830M will be a lot (about 243%) faster with regards to FSAA than the Radeon HD 4550 512MB, and will be capable of handling higher screen resolutions better. (explain)

GeForce 830M		8232 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 5832 (243%)

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 moved past the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, 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 texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.