To be honest the posts that I think he is referring to are dated as was already mentioned.
One item that I saw which could be considered misrepresented can be found in one of your previous posts stating:
Lastly, the OMAP is packaged with the PowerVR SGX530 GPU which runs at 430MHz
This is false, as the Droid X uses the SGX530 GPU at 200MHz, not 430MHz.
Good. Looking back, I'm uncertain if that was a transposition error on my part or just bad research. In any case, you're right; it runs at 200MHz.
More troubling, though, is the memory bandwidth issue. After looking into things again, I'm certainly going to have to back off my claim that the X uses LPDDR2. As of now, I'm unsure exactly what it uses, but I'm leaning towards a modified version of LPDDR1.
The reasons for thinking it uses LPDDR2 are circumstantial at best: There was speculation before it was released, insiders said it had upgraded memory performance, etc. Most convincingly, though, is that everyone is pretty certain that the Galaxy S series has LPDDR2, and the X and Galaxy S' perform about the same on memory benchmarks (see
here).
On the other hand, Anandtech (which is a _very_ trusted source) and another place I came across causally mention that the TI wants to use LPDDR2 in the OMAP 4 series (implying that it doesn't use it in the OMAP 3 series). So, if this is true, how do we explain the X's improved memory performance?
You can see from
this picture that the X's memory scores are about the same as the Galaxy S, but also much higher than the Snapdragon. We know the Snapdragon uses single-channel LPDDR1 and, from what I can tell, the Galaxy uses single-channel LPDDR2. To fully take advantage of DDR2 bandwidth, though, you need to dual-channel, so there's still headroom on the Galaxy. So, if the X is using LPDDR1, why is it benchmarking faster than the Snapdragon's memory? Could it be clocked to run at a higher frequency? Perhaps the X's LPDDR1 is just faster than the snapdragon's LPDDR1? But, again, how to explain the similar performance between the X's memory and the Galaxy's? Is the same bug which affected the Galaxy's I/O performance also affecting it's memory performance? I've seen no reason to think so. Is the X actually running the same single-channel LPDD2 as the Galaxy? I don't know.
So, to sum up: I don't know what memory the X uses. What I do know is that it's faster than the snapdragon's LPDDR1 memory and is also possibly as fast as the Galaxy's single-channel LPDDR2. Sorry for any confusion.
