GeForce GTX 860M vs Radeon HD 5570

Intro

Compare all that to the Radeon HD 5570, which has core clock speeds of 650 MHz on the GPU, and 900 MHz on the 512 MB of DDR3 RAM. It features 400(80x5) SPUs along with 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 860M		45 Watts
	Difference: 2 Watts (5%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 860M should be 122% faster than the Radeon HD 5570 in general, due to its greater bandwidth. (explain)

GeForce GTX 860M		64000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 35200 (122%)

Texel Rate

The GeForce GTX 860M should be much (more or less 489%) faster with regards to texture filtering than the Radeon HD 5570. (explain)

GeForce GTX 860M		76512 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 63512 (489%)

Pixel Rate

The GeForce GTX 860M will be much (about 145%) faster with regards to full screen anti-aliasing than the Radeon HD 5570, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 860M		12752 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 7552 (145%)

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 (in units of megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 can be processed in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.