Radeon HD 3470 256MB vs Radeon R9 M265X

Intro

Compare those specifications to the Radeon R9 M265X, which features a clock frequency of 575 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M265X is 137% faster than the Radeon HD 3470 256MB overall, due to its greater bandwidth. (explain)

Radeon R9 M265X		72000 MB/sec
Radeon HD 3470 256MB		30400 MB/sec
	Difference: 41600 (137%)

Texel Rate

The Radeon R9 M265X should be a lot (approximately 619%) better at anisotropic filtering than the Radeon HD 3470 256MB. (explain)

Radeon R9 M265X		23000 Mtexels/sec
Radeon HD 3470 256MB		3200 Mtexels/sec
	Difference: 19800 (619%)

Pixel Rate

The Radeon R9 M265X should be much (approximately 188%) faster with regards to anti-aliasing than the Radeon HD 3470 256MB, and should be able to handle higher resolutions better. (explain)

Radeon R9 M265X		9200 Mpixels/sec
Radeon HD 3470 256MB		3200 Mpixels/sec
	Difference: 6000 (188%)

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 data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.