Radeon R5 M330 vs Radeon R9 380X

Intro

Compare all of that to the Radeon R9 380X, which has GPU clock speed of 970 MHz, and 4096 MB of GDDR5 memory set to run at 1425 MHz through a 256-bit bus. It also is comprised of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 380X should be 1167% quicker than the Radeon R5 M330 overall, due to its greater bandwidth. (explain)

Radeon R9 380X		182400 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 168000 (1167%)

Texel Rate

The Radeon R9 380X is much (about 503%) better at texture filtering than the Radeon R5 M330. (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 103560 (503%)

Pixel Rate

The Radeon R9 380X should be quite a bit (about 277%) more effective at AA than the Radeon R5 M330, and also should be able to handle higher resolutions while still performing well. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 22800 (277%)

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 transported over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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