Radeon HD 3650 256MB vs Radeon R9 M375X

Intro

Compare that to the Radeon R9 M375X, which has GPU clock speed of 1015 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

The Radeon R9 M375X should theoretically perform a lot faster than the Radeon HD 3650 256MB overall. (explain)

Radeon R9 M375X		72000 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 46400 (181%)

Texel Rate

The Radeon R9 M375X should be much (about 600%) better at anisotropic filtering than the Radeon HD 3650 256MB. (explain)

Radeon R9 M375X		40600 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 34800 (600%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M375X is superior to the Radeon HD 3650 256MB, by a large margin. (explain)

Radeon R9 M375X		16240 Mpixels/sec
Radeon HD 3650 256MB		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 maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core 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 many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.