GeForce GTX 960M vs Radeon HD 4750

Intro

Compare those specifications to the Radeon HD 4750, which uses a 40 nm design. AMD has clocked the core frequency at 730 MHz. The GDDR5 memory is set to run at a speed of 800 MHz on this particular model. It features 640(128x5) SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
Radeon HD 4750		75 Watts
	Difference: 10 Watts (15%)

Memory Bandwidth

Theoretically, the GeForce GTX 960M should perform a lot faster than the Radeon HD 4750 overall. (explain)

GeForce GTX 960M		64000 MB/sec
Radeon HD 4750		51200 MB/sec
	Difference: 12800 (25%)

Texel Rate

The GeForce GTX 960M should be quite a bit (more or less 88%) better at texture filtering than the Radeon HD 4750. (explain)

GeForce GTX 960M		43840 Mtexels/sec
Radeon HD 4750		23360 Mtexels/sec
	Difference: 20480 (88%)

Pixel Rate

The GeForce GTX 960M should be much (approximately 50%) faster with regards to anti-aliasing than the Radeon HD 4750, and able to handle higher resolutions while still performing well. (explain)

GeForce GTX 960M		17536 Mpixels/sec
Radeon HD 4750		11680 Mpixels/sec
	Difference: 5856 (50%)

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 max amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the 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 are processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.