scooby_dooby said:
I don't know where you're getting yor numbers for sustained transfer rates on a 5400 RPM SATA drive, it should be at least ~130MB/s maximum.
Scoob, this explains your attitude some about the HDD. You believe it is waaaay faster than they are. I am not sure what information has convinced you that a 5,400RPM SATA HDD is that fast, but whatever it is... burn it!
First off is that most HDDs have ATA100 or ATA133 interface or SATA (150). But that is the interface, and the drives are not limited by the interface but instead the limitations of the drive speed. We know for a FACT that the physical drives are
slower than the interface. To put it another way: a Raptor on a SATA-300 connection WONT be faster than a Raptor on ATA100 in almost any situation.
If a 10,000 RPM raptor is not breaking the 100MB/s barrier in most situations, then surely a 5,400RPM drive wont even be close... which it is not. Here are some of the BETTER 20GB Laptop drives I could find:
Seagate 20GB 5,400 RPM drive; Avg. Sustained Transfer Rate (Mbytes/sec):
34.5 MB/s =>
http://www.xpcgear.com/st92011a.html
20 Gigabyte Seagate Laptop Hard Drive; Sustained Transfer Rate Up to
34.5 MB/s =>
http://www.harddisk.com/harddrive/laptop/st92811a.html
To compare, the
burst transfer rate (which is significantly higher than systained) for high end drives is almost always under 100MB/s. The Raptor is the only drive over 100 (at 105), with the rest of the *high end* drives coming in between 66-97MB/s for burst performance.
http://www6.tomshardware.com/storage/20030501/wd360-06.html#benchmark_results
Further, a Raptor HDD has a *sustained transfer speed* of about
72 MB/s from my quick search. Needless to say a 5,400 RPM Laptop (2.5in) class HDD, SATA or PATA, is going to have a *sustained* performance significantly less that the 72 MB/s a Raptor achieves. So we can toss out any dreams of hitting 130MB/s!!
To put it into perspective, the 37GB Raptor has a sustained transfer rate of
55MB/s. In general your smaller drives tend to be slower.
And from what I can find is that a 20GB 5,400RPM drive is going to be in the ~30-35GB neighborhood for sustained transfer rate. DEFINATELY not the 130MB neighborhood you are expecting. Does that put the HDD in a little different perspective?
A 12x DVD with an average sustained transfer speed of ~17MB/s compares a bit more favorably to a HDD with a ~30GB/s average sustained transfer rate compared to one with a 130MB/s rate!
therealskywolf said:
Well you gotta check the info 1st. I have a Western Digital 80 GB 7200, 8MB cache, and the thing is FAST.
Like I said, I have a 74GB Raptor -- i.e. 10,000 RPM, 8MB cache
(I also have an 80GB 7,200 RPM 8MB cache Maxtor, so I have a decent feel for the difference in speeds).
That said the Raptor--while faster than the 7,200 RPM drives -- STILL has some LONG load times in games with long load times. Yes, faster than those with slower drives (e.g. in BF42 I was always one of the first people in a game on a map reload because of my load times) I still have to wait... and wait... and wait!
To give some numbers between a Raptor and a Maxtor Diamondmax 120GB (8MB cache, 7,200 RPM):
http://www.anandtech.com/storage/showdoc.aspx?i=2073&p=9
FarCry
74GB Raptor: 40 seconds
120GB Maxtor: 43 seconds
Unreal Tournament 2004
74GB Raptor: 29 seconds
120GB Maxtor: 33 seconds
The biggest boost for the Raptor, IMO, is in seek time (4.5ms vs. ~9 for other drives) which translates to quicker file seeks. Anyhow, as the tests show...
Even FAST HDDs are SLOW at game loads if the game is not optimized. A HDD is not an instant remedy to long load times unfortunately
So I am not sure what you are calling fast, but my experience with Far Cry, HL2, Battlefield 2 and Battlefield 1942 is that even with a FAST drive, the games still have LONG load times.
Inane said:
I thought it was painfully obvious by now that load times are primarily determined by developer, not hardware.
Agreed. While technology HELPS, and a hardware design aimed at minimizing bottlenecks and load times helps, a significant part of the issue is related to the developer.
PCs have far superior HDDs and DVD drives compared to the consoles, yet as I linked above games still have LONG load times.
Yet somehow a little console like the GCN or the PS2 has shown with good design a developer can really minimize load times. No wonder UE3 is going to have streaming technology!
While a HDD would help, I think MS looked at (1) PC load times and (2) the closing gap between a fast DVD drive and a 5,400 RPM Laptop drive and (3) how the Xbox1 HDD was used as a giant memory card and then made their decision.
I still would have liked the HDD standard, but with the cost involved and the industry (read: Sony and Nintendo) still uncommited it meant 3rd parties would still probably neglect it.
They are doing the very next best thing by 1) making the majority of early SKUs contain the HDD and 2) releasing it at launch and 3) [possibly] having games early on show consumers the advantage.
A large number (millions) of consumers will have the HDD. So it will be up to developers to use it in a way that makes it a "must have" addon. If developers can show its worth early on it will sell well. If not as time goes on the ratio between Xbox owners and HDD owners will increase.
Baically MS has asked the HDD to swim or sink based on its own merits. In the first 12 months there will be more HDD owners than not, so it will be interesting. My guess is that for gaming it will be under used. The big wins for a HDD are downloadable content and advertising (trailers, demos) and TiVo. It does not do TiVo at all, so basically it will be a big memory card (which is how the Xbox1 mainly used it). From MS perspective they might as well follow Sony and Nintendo and at least make money on their memory cards.