GeForce GTX 860M vs Radeon HD 4730

Intro

Compare that to the Radeon HD 4730, which uses a 55 nm design. AMD has clocked the core frequency at 700 MHz. The GDDR5 memory works at a frequency of 900 MHz on this model. It features 640(128x5) SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
Radeon HD 4730		140 Watts
	Difference: 95 Watts (211%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 860M should in theory be a bit better than the Radeon HD 4730 in general. (explain)

GeForce GTX 860M		64000 MB/sec
Radeon HD 4730		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The GeForce GTX 860M is much (about 242%) better at AF than the Radeon HD 4730. (explain)

GeForce GTX 860M		76512 Mtexels/sec
Radeon HD 4730		22400 Mtexels/sec
	Difference: 54112 (242%)

Pixel Rate

The GeForce GTX 860M should be quite a bit (about 128%) more effective at AA than the Radeon HD 4730, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 860M		12752 Mpixels/sec
Radeon HD 4730		5600 Mpixels/sec
	Difference: 7152 (128%)

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 largest amount of information (counted in MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, 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 can be processed in one second. This figure is calculated by multiplying the total number of texture units of the card 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 the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.