Radeon HD 3470 256MB vs Radeon R9 M375

Intro

Compare all that to the Radeon R9 M375, which features a GPU core clock speed of 1015 MHz, and 4096 MB of DDR3 memory set to run at 1100 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M375 should perform just a bit faster than the Radeon HD 3470 256MB in general. (explain)

Radeon R9 M375		35200 MB/sec
Radeon HD 3470 256MB		30400 MB/sec
	Difference: 4800 (16%)

Texel Rate

The Radeon R9 M375 is quite a bit (about 1169%) faster with regards to AF than the Radeon HD 3470 256MB. (explain)

Radeon R9 M375		40600 Mtexels/sec
Radeon HD 3470 256MB		3200 Mtexels/sec
	Difference: 37400 (1169%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 M375 is superior to the Radeon HD 3470 256MB, and very much so. (explain)

Radeon R9 M375		16240 Mpixels/sec
Radeon HD 3470 256MB		3200 Mpixels/sec
	Difference: 13040 (408%)

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 (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.