Radeon HD 3470 256MB vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which features GPU clock speed of 723 MHz, and 4096 MB of GDDR5 memory set to run at 1250 MHz through a 256-bit bus. It also is made up of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M395X should be a lot faster than the Radeon HD 3470 256MB overall. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon HD 3470 256MB		30400 MB/sec
	Difference: 129600 (426%)

Texel Rate

The Radeon R9 M395X will be a lot (approximately 2792%) faster with regards to anisotropic filtering than the Radeon HD 3470 256MB. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon HD 3470 256MB		3200 Mtexels/sec
	Difference: 89344 (2792%)

Pixel Rate

The Radeon R9 M395X should be much (more or less 623%) better at anti-aliasing than the Radeon HD 3470 256MB, and also will be able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon HD 3470 256MB		3200 Mpixels/sec
	Difference: 19936 (623%)

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 maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.