Radeon HD 3650 512MB vs Radeon R9 M375

Intro

Compare all that to the Radeon R9 M375, which features a clock speed of 1015 MHz and a DDR3 memory frequency of 1100 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R9 M375 should theoretically be quite a bit better than the Radeon HD 3650 512MB overall. (explain)

Radeon R9 M375		35200 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 9600 (38%)

Texel Rate

The Radeon R9 M375 will be a lot (approximately 600%) more effective at texture filtering than the Radeon HD 3650 512MB. (explain)

Radeon R9 M375		40600 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 34800 (600%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 M375 is a better choice, by a large margin. (explain)

Radeon R9 M375		16240 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 13340 (460%)

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 transferred over the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.