B/R and S/R

[Xavien]

Apologies for what is probably a really simple answer but i cant find the answer anywhere on the net. As the title says, what is the difference between B/R read speed and S/R read speed with regards to SSD drives. I realize that the "R" bit stand for read (and w for write) but its the first letter that im confused about.

I have a 3 and a half year old laptop from pc specialist that is still going strong, however i made the mistake of buying a non SSD drive and every time there is a big win 10 update it nearly bricks my laptop and im forced to repair windows until i can get it to install. Im looking at going for a new laptop with a 512GB Intel® H10 NVMe SSD + 32GB Intel® Optane drive in it. My current laptop has a 500GB SEAGATE FIRECUDA 2.5" SSHD which was suppose to be 10 times faster than a normal HD but as it happened was probably one of the worst hard drives ive ever had, and ive had many hard drives over the years.

 

[SpyderTracks]

Apologies for what is probably a really simple answer but i cant find the answer anywhere on the net. As the title says, what is the difference between B/R read speed and S/R read speed with regards to SSD drives. I realize that the "R" bit stand for read (and w for write) but its the first letter that im confused about.

I have a 3 and a half year old laptop from pc specialist that is still going strong, however i made the mistake of buying a non SSD drive and every time there is a big win 10 update it nearly bricks my laptop and im forced to repair windows until i can get it to install. Im looking at going for a new laptop with a 512GB Intel® H10 NVMe SSD + 32GB Intel® Optane drive in it. My current laptop has a 500GB SEAGATE FIRECUDA 2.5" SSHD which was suppose to be 10 times faster than a normal HD but as it happened was probably one of the worst hard drives ive ever had, and ive had many hard drives over the years.

SSHD's are hybrid drives that have a very small SSD cache, usually around 8Gb, and then a normal slow 5400rpm HDD. They're awful and performance deteriorates over time, you have to do a fresh windows reinstall quite frequently to maintain performance. Generally best to avoid in all circurmstances though.

As to b/r and s/r, I've never heard of those terms related to drive performance, so can't help you there. Just had a look online and can't find any reference to it.

But I would STONGLY recommend NOT getting the Optane hybrid drive, that is again a bad option. it's the same idea as the SSHD you previously had pairing a small optane cache with a slow SSD.

A standard M2 drive is the way to go, they'll outperform anything else.

 

[ubuysa]

I suspect SR is probably "Sequential Bandwidth - 100% Read"....no clue as to BR as can't find it anywhere on the PCS site nor on the Intel site about the drive in question

I concur. B/R will be bytes read, meaning random reads. S/R will be sequential reads.

Reading a large sequential file is faster than doing random reads of small files.

IMO if the drive is to be used as a Windows drive the S/R figure can be ignored - all reads will be random.

 

[Xavien]

SSHD's are hybrid drives that have a very small SSD cache, usually around 8Gb, and then a normal slow 5400rpm HDD. They're awful and performance deteriorates over time, you have to do a fresh windows reinstall quite frequently to maintain performance. Generally best to avoid in all circurmstances though.

As to b/r and s/r, I've never heard of those terms related to drive performance, so can't help you there. Just had a look online and can't find any reference to it.

But I would STONGLY recommend NOT getting the Optane hybrid drive, that is again a bad option. it's the same idea as the SSHD you previously had pairing a small optane cache with a slow SSD.

A standard M2 drive is the way to go, they'll outperform anything else.

Im really glad i mentioned about the optane ssd. It kinda sounds a bit too good to be true and there isnt a massive difference in price when you swap between the ssd drives (unless going for a massive one. Thanks for your help there. I dont want the laptop for gaming as i swapped some years back to consoles for that. Its mainly just for browsing, paying bills maybe watching the odd movie etc... nothing really too taxing. Yeap the drive will be used for windows, i dont plan on getting a second drive.

 

[Xavien]

I concur. B/R will be bytes read, meaning random reads. S/R will be sequential reads.

Reading a large sequential file is faster than doing random reads of small files.

IMO if the drive is to be used as a Windows drive the S/R figure can be ignored - all reads will be random.

Thanks guys for your input here. I doubt if it makes too much difference, i guess, funny thing is i originally bought a laptop from pc specialist back in 2014 (win 7) and it is pretty much inferior in every way to my 2017 laptop (win 10) except the HD which was far superior, and in every day use including installing win 10 updates the older one has always been so much quicker, as spyder said the firecuda was a terrible HD so i wanted to get a butt kicking SSD this time. Seriously on the SSD win update take no longer then 30 mins max on the other laptop it can take 8 hours :O I only bought a new laptop in 2017 because i was getting a BSOD on it, however after upgrading to win 10 i didnt get the problem anymore lol but its just time to get another one now. Sorry for the ramble

 

[Xavien]

SSHD's are hybrid drives that have a very small SSD cache, usually around 8Gb, and then a normal slow 5400rpm HDD. They're awful and performance deteriorates over time, you have to do a fresh windows reinstall quite frequently to maintain performance. Generally best to avoid in all circurmstances though.

As to b/r and s/r, I've never heard of those terms related to drive performance, so can't help you there. Just had a look online and can't find any reference to it.

But I would STONGLY recommend NOT getting the Optane hybrid drive, that is again a bad option. it's the same idea as the SSHD you previously had pairing a small optane cache with a slow SSD.

A standard M2 drive is the way to go, they'll outperform anything else.

Ok having a look at the standard SSDs ive read that PCle NVMe are better than the SATAs (correct me if im wrong) so which would be the best choice in your opinion out of these

512GB Intel 660p M.2 PCLe NVMe (up to 1500MB/sR 1000MB s/W
512GB PCS PCLe M.2 SSD (2000MB/R 1100MB/W
512GB ADATA SU800 M.2 2280 (500MB/R 520MB/W)

There doesnt seem to be a big difference in price out of any of them. Thanks for your help. Im also going to go with an i5 and probably 16 gigs of ram.

 

[Xavien]

I'd hazard a guess that the ADATA one is a SATA one given it's comparable speed to a traditional SSD. Given that the PCS one has better read and write speeds combined with question marks over Intel ones long-term, I'd go with the PCS one....I have an equivalent one in my desktop (what was the PCS level one back in January) and it is quick....can transfer 100GB of data from it to a Samsung SSD in under 10 minutes

Wow thats awesome! Thanks for the reply, looks like the PCS will be the choice for me.