Radeon HD 5750 512MB vs Radeon R9 M385X

Intro

Compare all of that to the Radeon R9 M385X, which comes with a core clock frequency of 1100 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M385X will be 30% faster than the Radeon HD 5750 512MB in general, because of its higher data rate. (explain)

Radeon R9 M385X		96000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 22400 (30%)

Texel Rate

The Radeon R9 M385X is a lot (more or less 144%) better at texture filtering than the Radeon HD 5750 512MB. (explain)

Radeon R9 M385X		61600 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 36400 (144%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M385X is a better choice, by far. (explain)

Radeon R9 M385X		17600 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 6400 (57%)

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: Bandwidth is the largest amount of information (in units of MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 can be processed in one second. This number 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 graphics card will be at handling 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 the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.