Radeon R7 250X 2GB vs Radeon R9 M385X

Intro

Compare all of that to the Radeon R9 M385X, which comes with a core clock speed of 1100 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit bus, and uses a 28 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M385X should be quite a bit faster than the Radeon R7 250X 2GB overall. (explain)

Radeon R9 M385X		96000 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 24000 (33%)

Texel Rate

The Radeon R9 M385X should be quite a bit (about 54%) faster with regards to anisotropic filtering than the Radeon R7 250X 2GB. (explain)

Radeon R9 M385X		61600 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 21600 (54%)

Pixel Rate

The Radeon R9 M385X will be a little bit (approximately 10%) faster with regards to anti-aliasing than the Radeon R7 250X 2GB, and able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 M385X		17600 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 1600 (10%)

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 maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.