GeForce GTX 950M vs Radeon HD 4830 1GB

Intro

Compare those specs to the Radeon HD 4830 1GB, which features core clock speeds of 575 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR4 RAM. It features 640(128x5) SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
Radeon HD 4830 1GB		95 Watts
	Difference: 40 Watts (73%)

Memory Bandwidth

Performance-wise, the Radeon HD 4830 1GB should in theory be a lot better than the GeForce GTX 950M in general. (explain)

Radeon HD 4830 1GB		57600 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 25600 (80%)

Texel Rate

The GeForce GTX 950M is much (more or less 99%) better at texture filtering than the Radeon HD 4830 1GB. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon HD 4830 1GB		18400 Mtexels/sec
	Difference: 18160 (99%)

Pixel Rate

The GeForce GTX 950M will be a lot (approximately 59%) better at FSAA than the Radeon HD 4830 1GB, and capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon HD 4830 1GB		9200 Mpixels/sec
	Difference: 5424 (59%)

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 information (in units of MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.