GeForce GTX 960M vs Radeon HD 4830 1GB

Intro

Compare that to the Radeon HD 4830 1GB, which has a clock speed of 575 MHz and a GDDR4 memory speed of 900 MHz. It also uses a 256-bit bus, and makes use of a 55 nm design. It is made up of 640(128x5) SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
Radeon HD 4830 1GB		95 Watts
	Difference: 30 Watts (46%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 960M should in theory be a small bit better than the Radeon HD 4830 1GB in general. (explain)

GeForce GTX 960M		64000 MB/sec
Radeon HD 4830 1GB		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The GeForce GTX 960M is a lot (approximately 138%) more effective at AF than the Radeon HD 4830 1GB. (explain)

GeForce GTX 960M		43840 Mtexels/sec
Radeon HD 4830 1GB		18400 Mtexels/sec
	Difference: 25440 (138%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 960M is superior to the Radeon HD 4830 1GB, and very much so. (explain)

GeForce GTX 960M		17536 Mpixels/sec
Radeon HD 4830 1GB		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: Bandwidth is the max amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. It's 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 DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher 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 amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.