GeForce GTX 950 vs Radeon HD 5750 512MB

Intro

Compare those specs to the Radeon HD 5750 512MB, which uses a 40 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 memory works at a frequency of 1150 MHz on this card. It features 720(144x5) SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce GTX 950		90 Watts
	Difference: 4 Watts (5%)

Memory Bandwidth

In theory, the GeForce GTX 950 should be much faster than the Radeon HD 5750 512MB overall. (explain)

GeForce GTX 950		105728 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 32128 (44%)

Texel Rate

The GeForce GTX 950 is quite a bit (more or less 95%) faster with regards to texture filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 950		49152 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 23952 (95%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 950 is a better choice, and very much so. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 21568 (193%)

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 (measured in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.