Radeon R5 M330 vs Radeon R9 280

Intro

Compare those specifications to the Radeon R9 280, which uses a 28 nm design. AMD has set the core frequency at 933 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this specific card. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 280 should in theory perform much faster than the Radeon R5 M330 in general. (explain)

Radeon R9 280		240000 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 225600 (1567%)

Texel Rate

The Radeon R9 280 should be quite a bit (approximately 407%) more effective at anisotropic filtering than the Radeon R5 M330. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 83896 (407%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 280 is the winner, by a large margin. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 21616 (262%)

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 information (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once 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 texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.