GeForce GTX 960M vs Radeon HD 4830 512MB

Intro

Compare those specifications to the Radeon HD 4830 512MB, which features GPU clock speed of 575 MHz, and 512 MB of GDDR3 RAM running at 900 MHz through a 256-bit bus. It also is comprised of 640(128x5) Stream Processors, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
Radeon HD 4830 512MB		95 Watts
	Difference: 30 Watts (46%)

Memory Bandwidth

Theoretically, the GeForce GTX 960M should be a small bit faster than the Radeon HD 4830 512MB in general. (explain)

GeForce GTX 960M		64000 MB/sec
Radeon HD 4830 512MB		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The GeForce GTX 960M will be much (approximately 138%) better at texture filtering than the Radeon HD 4830 512MB. (explain)

GeForce GTX 960M		43840 Mtexels/sec
Radeon HD 4830 512MB		18400 Mtexels/sec
	Difference: 25440 (138%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 960M is a better choice, and very much so. (explain)

GeForce GTX 960M		17536 Mpixels/sec
Radeon HD 4830 512MB		9200 Mpixels/sec
	Difference: 8336 (91%)

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 (counted in megabytes per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.