GeForce GTX 860M vs Radeon HD 5830

Intro

Compare that to the Radeon HD 5830, which uses a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this specific model. It features 1120(224x5) SPUs as well as 56 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
Radeon HD 5830		175 Watts
	Difference: 130 Watts (289%)

Memory Bandwidth

Performance-wise, the Radeon HD 5830 should theoretically be quite a bit better than the GeForce GTX 860M in general. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 64000 (100%)

Texel Rate

The GeForce GTX 860M should be quite a bit (more or less 71%) better at anisotropic filtering than the Radeon HD 5830. (explain)

GeForce GTX 860M		76512 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 31712 (71%)

Pixel Rate

The Radeon HD 5830 will be just a bit (approximately 0%) faster with regards to full screen anti-aliasing than the GeForce GTX 860M, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 48 (0%)

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 largest amount of data (measured in MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher 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 are applied per second. This is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.