Radeon R7 250 vs Radeon R9 M365X

Intro

Compare those specifications to the Radeon R9 M365X, which features GPU core speed of 925 MHz, and 4096 MB of GDDR5 RAM running at 1125 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 250 should perform just a bit faster than the Radeon R9 M365X in general. (explain)

Radeon R7 250		73600 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 1600 (2%)

Texel Rate

The Radeon R9 M365X should be quite a bit (more or less 54%) better at AF than the Radeon R7 250. (explain)

Radeon R9 M365X		37000 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 13000 (54%)

Pixel Rate

The Radeon R9 M365X should be quite a bit (approximately 85%) faster with regards to anti-aliasing than the Radeon R7 250, and also should be able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 M365X		14800 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 6800 (85%)

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 maximum amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 in one second. This is worked out by multiplying the total amount of texture units 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 most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. 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 lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.