Radeon HD 3470 256MB vs Radeon R9 M375

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M375 should be 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 a lot (approximately 1169%) faster with regards to anisotropic filtering 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

The Radeon R9 M375 is a lot (approximately 408%) more effective at anti-aliasing than the Radeon HD 3470 256MB, and will be able to handle higher resolutions while still performing well. (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 past the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at 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 the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.