Radeon R5 M330 vs Radeon R9 390X 8G

Intro

Compare all of that to the Radeon R9 390X 8G, which has core speeds of 1050 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 RAM. It features 2816 SPUs along with 176 Texture Address Units and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 390X 8G should in theory perform quite a bit faster than the Radeon R5 M330 in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 369600 (2567%)

Texel Rate

The Radeon R9 390X 8G will be much (approximately 797%) more effective at texture filtering than the Radeon R5 M330. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 164200 (797%)

Pixel Rate

The Radeon R9 390X 8G should be much (more or less 716%) faster with regards to full screen anti-aliasing than the Radeon R5 M330, and should be capable of handling higher screen resolutions better. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 58960 (716%)

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 maximum amount of data (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher 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 in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.