Radeon HD 3650 256MB vs Radeon R9 M295X

Intro

Compare all of that to the Radeon R9 M295X, which uses a 28 nm design. AMD has set the core speed at 750 MHz. The GDDR5 RAM is set to run at a speed of 1375 MHz on this particular model. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 256MB		78 Watts
Radeon R9 M295X		125 Watts
	Difference: 47 Watts (60%)

Memory Bandwidth

The Radeon R9 M295X, in theory, should be much faster than the Radeon HD 3650 256MB overall. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 150400 (588%)

Texel Rate

The Radeon R9 M295X is much (more or less 1555%) faster with regards to texture filtering than the Radeon HD 3650 256MB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 90200 (1555%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 M295X is superior to the Radeon HD 3650 256MB, and very much so. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 21100 (728%)

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 moved across the external memory interface within a second. It's 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 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.