Radeon R5 M330 vs Radeon R9 M375

Intro

Compare all of that to the Radeon R9 M375, which uses a 28 nm design. AMD has clocked the core frequency at 1015 MHz. The DDR3 memory works at a speed of 1100 MHz on this particular model. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M375, in theory, should be much faster than the Radeon R5 M330 in general. (explain)

Radeon R9 M375		35200 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 20800 (144%)

Texel Rate

The Radeon R9 M375 should be a lot (approximately 97%) more effective at AF than the Radeon R5 M330. (explain)

Radeon R9 M375		40600 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 20000 (97%)

Pixel Rate

The Radeon R9 M375 should be quite a bit (about 97%) faster with regards to full screen anti-aliasing than the Radeon R5 M330, and will be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 M375		16240 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 8000 (97%)

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 (measured in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the video 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 most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.