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SanDisk Extreme PRO 240GB SSD Review - PCMark 8 Consistency Test

SanDisk Extreme PRO 240GB SSD Review
The Extreme PRO only goes down to 240GB, but it tops our chart as the fastest consumer SSD you can buy today. Check out Chris' full review of this new SSD.
| SSDs in Storage | Posted: Jun 28, 2014 7:40 am
TweakTown Rating: 96%Manufacturer: SanDisk

Futuremark PCMark 8 Extended - Consistency Test

 

Version and / or Patch Used: 2.0.228

 

Heavy Usage Model:

 

FutureMark's PCMark 8 allows us to wear the test drive down to a reasonable consumer steady state and then watch the drive recover on its own through garbage collection. To do that, the drive gets pushed down to steady state with random writes, and then idle time between a number of tests allows the drive to recover.

 

Precondition Phase:

1. Write to the drive sequentially through up to the reported capacity with random data.

2. Write the drive through a second time (to take care of overprovisioning).

 

Degradation Phase:

1. Run writes of random size between 8*512 and 2048*512 bytes on random offsets for 10 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 8 times, and on each pass increase the duration of random writes by 5 minutes.

 

Steady state Phase:

1. Run writes of random size between 8*512 and 2048*512 bytes on random offsets for 50 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 5 times.

 

Recovery Phase:

1. Idle for 5 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 5 times.

 

Storage Bandwidth

 

PCMark 8's Consistency test provides a ton of data output that we use to judge a drive's performance.

 

TweakTown image content/6/4/6471_60_sandisk_extreme_pro_240gb_ssd_review.png

 

In many of the earlier tests, the Extreme II and Extreme PRO 240GB models were nearly indistinguishable in performance. Here we get to see where the new PRO model leaps ahead of the previous generation. The worst case performance increased by 20 MB/s, and that same margin carried over to the steady state level as well.

 

Storage Bandwidth - All Tests

 

TweakTown image content/6/4/6471_61_sandisk_extreme_pro_240gb_ssd_review.png

 

On the chart with all of the phases shown, the Extreme PRO 240GB is easy to spot: it's at the top in nearly every test. Two of the other drives are able to reach Extreme PRO performance levels but only when the flash is clean. The Extreme PRO just marches through the test, delivering solid performance regardless of the flash state.

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