PCIe SSDs

Phal

Phal

Phal

Soldato
Joined
19 Jul 2004
Posts
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Location
Shoreham by Sea
I don't see much being said about these in here... Is it just the price that puts these out of people's reach or is there another reason why they aren't more popular?
 
I think its price, coupled with the fact that some motherboards can be a bit iffy. Rare, but does happen. Plus, normal SSD's are perfectly fine as a top end product. The PCI-E ones are a top-top-top-uber-high end product.
 
Yeah they're not cheap but I look at the speeds and see double on the cheapest ones and even 3x speeds on some :|

Shiny things!
 
Most definately the price.

A normal 120GB SSD costs around £1.10 per GB, whereas a 120GB PCI-E SSD costs over double, at £2.5 per GB.

Not to mention I don't think the average SSD user/gamer has any use for the performance gains that PCI-E brings over normal SSD.
 
Well I wouldn't say the cost is low... but certainly lower per GB than the others :P
 
http://overclockers.co.uk/showproduct.php?prodid=HD-089-OC

- MAX Read: up to 910MB/s
- MAX Write: up to 810MB/s
- MAX 4KB Random Write: 120,000 IOPS (475MB/s)
- Sequential Read: up to 290MB/s
- Sequential Write: up to 130MB/


http://overclockers.co.uk/showproduct.php?prodid=HD-008-CR

- Sequential Read (up to): 550MB/sec (SATA 6Gb/s)
- Sequential Write (up to): 110MB/sec (SATA 6Gb/s)
- Random 4k Read: 40,000 IOPS
- Random 4k Write: 20,000 IOPS


Im not an expert, but i would say those figures compare pretty well.
 
Phal said:
Yeah they're not cheap but I look at the speeds and see double on the cheapest ones and even 3x speeds on some :|

Shiny things!
Click to expand...

Yeah, but even a slow SSD eliminates all the old bottlenecks resulting in a ultra responsive system. SSD performance has very sharply diminishing returns, a 1TB/s PCI-E SSD will feel much the same as a drive that's a few generations old and capped at SATA 150 speeds.

It's kind of like how any premium optical mouse is a million times better than the cheap roller-ball ones we had last millennium, but there's not that much difference between the 1000dpi mice and the 4000dpi mice.

There are of course usage exceptions where a difference will show up, like if you're running a heavy database server or video editing on huge files, but for most people the price premium is hard to justify, especially now that SATA SSD's are doing over 500MB/s and narrowing the gap.
 
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