GeForce 830M vs Radeon HD 4550 512MB

Intro

Compare that to the Radeon HD 4550 512MB, which comes with a core clock frequency of 600 MHz and a GDDR3 memory frequency of 800 MHz. It also features a 64-bit bus, and makes use of a 55 nm design. It is made up of 80(16x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the GeForce 830M should theoretically be just a bit better than the Radeon HD 4550 512MB overall. (explain)

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

Texel Rate

The GeForce 830M should be a lot (about 243%) better at texture filtering 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 is quite a bit (about 243%) better at FSAA than the Radeon HD 4550 512MB, and should be able to handle higher resolutions more effectively. (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: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's 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 processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the 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 maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.