GeForce GTX 950M vs Radeon HD 5570

Intro

Compare all of that to the Radeon HD 5570, which comes with a clock speed of 650 MHz and a DDR3 memory speed of 900 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is comprised of 400(80x5) SPUs, 20 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 950M		55 Watts
	Difference: 12 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 950M is 11% quicker than the Radeon HD 5570 in general, because of its higher bandwidth. (explain)

GeForce GTX 950M		32000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The GeForce GTX 950M will be much (more or less 181%) better at texture filtering than the Radeon HD 5570. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 23560 (181%)

Pixel Rate

The GeForce GTX 950M should be a lot (about 181%) more effective at FSAA than the Radeon HD 5570, and should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 9424 (181%)

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 megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 are applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.