Radeon HD 3470 512MB vs Radeon R9 M295X

Intro

Compare that to the Radeon R9 M295X, which has a GPU core clock speed of 750 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M295X, in theory, should be a lot faster than the Radeon HD 3470 512MB in general. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 3470 512MB		30400 MB/sec
	Difference: 145600 (479%)

Texel Rate

The Radeon R9 M295X will be quite a bit (approximately 2900%) faster with regards to texture filtering than the Radeon HD 3470 512MB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 92800 (2900%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 M295X is superior to the Radeon HD 3470 512MB, by a large margin. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 20800 (650%)

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 (measured in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.