Radeon R5 M330 vs Radeon R9 M375X

Intro

Compare that to the Radeon R9 M375X, which features clock speeds of 1015 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M375X should theoretically be a lot better than the Radeon R5 M330 overall. (explain)

Radeon R9 M375X		72000 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 57600 (400%)

Texel Rate

The Radeon R9 M375X should be a lot (about 97%) better at anisotropic filtering than the Radeon R5 M330. (explain)

Radeon R9 M375X		40600 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 20000 (97%)

Pixel Rate

The Radeon R9 M375X should be a lot (approximately 97%) better at full screen anti-aliasing than the Radeon R5 M330, and also capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 M375X		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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.