Radeon R5 M330 vs Radeon R9 M280X

Intro

Compare those specs to the Radeon R9 M280X, which uses a 28 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 RAM works at a speed of 1375 MHz on this particular model. It features 896 SPUs along with 56 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M280X should in theory perform much faster than the Radeon R5 M330 in general. (explain)

Radeon R9 M280X		88000 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 73600 (511%)

Texel Rate

The Radeon R9 M280X is a lot (about 145%) more effective at texture filtering than the Radeon R5 M330. (explain)

Radeon R9 M280X		50400 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 29800 (145%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M280X is a better choice, and very much so. (explain)

Radeon R9 M280X		14400 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 6160 (75%)

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 data (counted in MB per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.