Radeon HD 5450 vs Radeon R9 M380

Intro

Compare all that to the Radeon R9 M380, which comes with a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R9 M380 should theoretically be much superior to the Radeon HD 5450 in general. (explain)

Radeon R9 M380		96000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 83200 (650%)

Texel Rate

The Radeon R9 M380 will be quite a bit (more or less 669%) better at AF than the Radeon HD 5450. (explain)

Radeon R9 M380		40000 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 34800 (669%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M380 is superior to the Radeon HD 5450, by far. (explain)

Radeon R9 M380		16000 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 13400 (515%)

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 max amount of data (measured in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.