Radeon HD 3470 256MB vs Radeon R9 M295X

Intro

Compare all of that to the Radeon R9 M295X, which makes use of a 28 nm design. AMD has clocked the core frequency at 750 MHz. The GDDR5 memory runs at a speed of 1375 MHz on this particular model. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M295X should be 479% quicker than the Radeon HD 3470 256MB in general, due to its higher bandwidth. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 3470 256MB		30400 MB/sec
	Difference: 145600 (479%)

Texel Rate

The Radeon R9 M295X should be quite a bit (about 2900%) faster with regards to texture filtering than the Radeon HD 3470 256MB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 3470 256MB		3200 Mtexels/sec
	Difference: 92800 (2900%)

Pixel Rate

The Radeon R9 M295X is much (approximately 650%) more effective at full screen anti-aliasing than the Radeon HD 3470 256MB, and also will be able to handle higher screen resolutions better. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 3470 256MB		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 data (counted in MB per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.