GeForce GTX 950M vs Radeon HD 4750

Intro

Compare those specs to the Radeon HD 4750, which features a GPU core clock speed of 730 MHz, and 512 MB of GDDR5 memory set to run at 800 MHz through a 128-bit bus. It also features 640(128x5) SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
Radeon HD 4750		75 Watts
	Difference: 20 Watts (36%)

Memory Bandwidth

Performance-wise, the Radeon HD 4750 should in theory be much better than the GeForce GTX 950M overall. (explain)

Radeon HD 4750		51200 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 19200 (60%)

Texel Rate

The GeForce GTX 950M should be much (approximately 57%) more effective at texture filtering than the Radeon HD 4750. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon HD 4750		23360 Mtexels/sec
	Difference: 13200 (57%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 950M is superior to the Radeon HD 4750, by a large margin. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon HD 4750		11680 Mpixels/sec
	Difference: 2944 (25%)

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 (counted in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the 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 the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.