Radeon HD 3470 256MB vs Radeon R7 M265

Intro

Compare all that to the Radeon R7 M265, which has clock speeds of 725 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 M265 will be 5% quicker than the Radeon HD 3470 256MB overall, because of its higher bandwidth. (explain)

Radeon R7 M265		32000 MB/sec
Radeon HD 3470 256MB		30400 MB/sec
	Difference: 1600 (5%)

Texel Rate

The Radeon R7 M265 will be a lot (more or less 444%) more effective at texture filtering than the Radeon HD 3470 256MB. (explain)

Radeon R7 M265		17400 Mtexels/sec
Radeon HD 3470 256MB		3200 Mtexels/sec
	Difference: 14200 (444%)

Pixel Rate

The Radeon R7 M265 will be quite a bit (more or less 81%) better at AA than the Radeon HD 3470 256MB, and will be able to handle higher resolutions without losing too much performance. (explain)

Radeon R7 M265		5800 Mpixels/sec
Radeon HD 3470 256MB		3200 Mpixels/sec
	Difference: 2600 (81%)

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 information (counted in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.