GeForce 930M vs Radeon HD 4550 256MB

Intro

Compare that to the Radeon HD 4550 256MB, which uses a 55 nm design. AMD has clocked the core frequency at 600 MHz. The DDR3 RAM runs at a frequency of 800 MHz on this particular model. It features 80(16x5) SPUs as well as 8 TAUs and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 930M will be 13% faster than the Radeon HD 4550 256MB in general, because of its greater data rate. (explain)

GeForce 930M		14400 MB/sec
Radeon HD 4550 256MB		12800 MB/sec
	Difference: 1600 (13%)

Texel Rate

The GeForce 930M should be a lot (more or less 364%) better at AF than the Radeon HD 4550 256MB. (explain)

GeForce 930M		22272 Mtexels/sec
Radeon HD 4550 256MB		4800 Mtexels/sec
	Difference: 17472 (364%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 930M is a better choice, by far. (explain)

GeForce 930M		7424 Mpixels/sec
Radeon HD 4550 256MB		2400 Mpixels/sec
	Difference: 5024 (209%)

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 data (measured in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.