GeForce 930M vs Radeon HD 5550

Intro

Compare that to the Radeon HD 5550, which features a clock frequency of 550 MHz and a DDR2 memory frequency of 400 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It features 320(64x5) SPUs, 16 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 930M should theoretically perform just a bit faster than the Radeon HD 5550 overall. (explain)

GeForce 930M		14400 MB/sec
Radeon HD 5550		12800 MB/sec
	Difference: 1600 (13%)

Texel Rate

The GeForce 930M should be a lot (approximately 153%) better at AF than the Radeon HD 5550. (explain)

GeForce 930M		22272 Mtexels/sec
Radeon HD 5550		8800 Mtexels/sec
	Difference: 13472 (153%)

Pixel Rate

The GeForce 930M will be much (approximately 69%) better at anti-aliasing than the Radeon HD 5550, and will be able to handle higher resolutions without losing too much performance. (explain)

GeForce 930M		7424 Mpixels/sec
Radeon HD 5550		4400 Mpixels/sec
	Difference: 3024 (69%)

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 max amount of data (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 card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better 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 card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.