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SSD Size Read/Write Differences
- Thread starter WhiteWhaleHolyGrail
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People are reporting the same "APPLE SSD AP0512J" in the 12 inch Macbook.
Perhaps the same SSD, unless Apple is reusing the AP0512J code.
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Thanks everyone for sharing! Even though there is no conspiracy theory here, I think it's very helpful information when considering which size SSD to buy.
To summarize what we got so far:
AJA speedtest (read/write)
bjdraw 13" 512: 2302/1324
jazzfascist nTB 13" 1 TB: 2201/1611
ocrane 1 TB: 2420/2006
SVTM 15" 2 TB: 2429/1982
The difference between jazzfascist and ocrane really seems strange to me. Any explanations for this?
To summarize what we got so far:
AJA speedtest (read/write)
bjdraw 13" 512: 2302/1324
jazzfascist nTB 13" 1 TB: 2201/1611
ocrane 1 TB: 2420/2006
SVTM 15" 2 TB: 2429/1982
The difference between jazzfascist and ocrane really seems strange to me. Any explanations for this?
The discrepancy between the two 1TB SSDs is a bit worrying.
Where did you get the SVTM 15" 2TB numbers?
Edit: ocrane has a maxed out 15" rather than the 13" touch bar, so perhaps that's where the discrepancy arose.
Edit #2: found the SVTM numbers here: https://forums.macrumors.com/thread...irst-impressions.2015010/page-2#post-23923135
Where did you get the SVTM 15" 2TB numbers?
Edit: ocrane has a maxed out 15" rather than the 13" touch bar, so perhaps that's where the discrepancy arose.
Edit #2: found the SVTM numbers here: https://forums.macrumors.com/thread...irst-impressions.2015010/page-2#post-23923135
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You will never notice these bandwidth differences in real world use unless you're doing something crazy that 99.9% of users are doing yet. By the time this kind of bandwidth is useful in regular daily use....computers will be running at 12Ghz with 128GB RAM and an OS will take 25GB to install.
[doublepost=1479339560][/doublepost]
I took it up to 2300MB/s over a year ago with an SM951 RAID (first in the world).
That bandwidth doesn't correlate to anything useful in real world use though.
So, from this thread [https://forums.macrumors.com/threads/first-thoughts-15-bto-in-hand.2015538], there are a few more benchmarks:
cmaier 15" 2TB (still indexing): 2300 read / 1777 write
x-evil-x 15" 512GB: 2222 read / 1878 write
deadworlds 1TB: 2228 read / 1929 write
cmaier 15" 2TB (still indexing): 2300 read / 1777 write
x-evil-x 15" 512GB: 2222 read / 1878 write
deadworlds 1TB: 2228 read / 1929 write
Capacity: 1 TB (1 000 555 581 440 bytes)
TRIM Support: Yes
Model: APPLE SSD AP1024J
Revision: 12.93.01
Link Width: x4
Link Speed: 8.0 GT/s
Detachable Drive: No
TRIM Support: Yes
Model: APPLE SSD AP1024J
Revision: 12.93.01
Link Width: x4
Link Speed: 8.0 GT/s
Detachable Drive: No
Another try with AJA System Test, set test file size to 16GB and the results seem to stabilize at around 1780MB/s write and 2184MB/s read
I just picked up the base model 2016 15"....my black magic is really slow compared to what you are all reporting and slower than the 13" I returned???? 695 write and 1917 read????? Even my little 12" MBr writes that fast. Maybe I need to let spotlight finish, etc. and try again? Very strange.
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Something is slowing your SSD down as that result cannot be right. The 256GB is marginally slower but that's well off.. This is after 3 reboots.
what do you mean "sliding your SSD"? EDIT: something must be going on. Just retested and inched up a few hundred on write. Now its 1440/2000 on BM. On Aja, it's all over the board. 1200/900, 1400/2400, 700/650????? Something must be writing to the disk heavy.....wierd. I'll kill wifi and see what happens.
Update: Unplugged AC, on battery only with AJA 1440/2253...much better. Rerun and it's 1330/1978. There has to be some background activity interfering a bit. Wonder what it is. Activity Mon reveals not much going on.
Update: Unplugged AC, on battery only with AJA 1440/2253...much better. Rerun and it's 1330/1978. There has to be some background activity interfering a bit. Wonder what it is. Activity Mon reveals not much going on.
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Hello there,
I tested 256GB version and 2TB version using blackmagic.
The read speed all maxed out blackmagic's test at 2000MB/s
The write speed is where the difference is,
256GB got an average of 1300MB/s after 2 minutes of test.
2T got an average of 1970MB/s after 2 minutes of test.
Hope this helped you.
I tested 256GB version and 2TB version using blackmagic.
The read speed all maxed out blackmagic's test at 2000MB/s
The write speed is where the difference is,
256GB got an average of 1300MB/s after 2 minutes of test.
2T got an average of 1970MB/s after 2 minutes of test.
Hope this helped you.
Hello there,
256 is tested on a top spec 13";
2T is tested on a maxed out 15";
Seems like the 256 ssd is provided by sandisk. My best guess on 2T SSD is provided by Samsung, the exact model says appleSM2048(which is extremely similar to how Samsung named their SM961 series )