Radeon HD 5750 1GB vs Radeon R9 M380

Intro

Compare that to the Radeon R9 M380, which has GPU core speed of 1000 MHz, and 4096 MB of GDDR5 memory running at 1500 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M380 should perform much faster than the Radeon HD 5750 1GB in general. (explain)

Radeon R9 M380		96000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 22400 (30%)

Texel Rate

The Radeon R9 M380 is much (approximately 59%) faster with regards to texture filtering than the Radeon HD 5750 1GB. (explain)

Radeon R9 M380		40000 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 14800 (59%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 M380 is a better choice, by far. (explain)

Radeon R9 M380		16000 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 4800 (43%)

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 largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's 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 texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.