Radeon HD 5450 vs Radeon R9 M295X

Intro

Compare those specs to the Radeon R9 M295X, which uses a 28 nm design. AMD has set the core frequency at 750 MHz. The GDDR5 memory is set to run at a speed of 1375 MHz on this card. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
Radeon R9 M295X		125 Watts
	Difference: 106 Watts (558%)

Memory Bandwidth

In theory, the Radeon R9 M295X will be 1275% quicker than the Radeon HD 5450 in general, due to its higher data rate. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 163200 (1275%)

Texel Rate

The Radeon R9 M295X should be much (more or less 1746%) more effective at anisotropic filtering than the Radeon HD 5450. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 90800 (1746%)

Pixel Rate

The Radeon R9 M295X should be quite a bit (about 823%) faster with regards to anti-aliasing than the Radeon HD 5450, and will be able to handle higher resolutions more effectively. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 21400 (823%)

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 largest amount of data (measured in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of 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 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 the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.