Storage Devices

Western Digital WD Black² 2.5-inch Dual Drive (SSD + HDD)

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Right away, 1st thing I realize is the Windows start-up speed, WOW! I took 3 timings of Windows 7 start-up, load and idle before which was 110 seconds. Our new Windows 7 start-up time is a impressive and welcome 32 seconds or 244% gain! Time to test the random read, random write, sequential read and sequential write speeds. Usually random accesses are small in size, while sequential accesses tend to be larger.  Two series of CrystalDiskMark tests for balance, one at 5 x 1000mb datasets and another at 100mb.
Western Digital WD Black² 2.5-inch Dual Drive (SSD + HDD) Hybrid 2.5 inch Hybrid Drive, SSD, WD, Western Digital 1
I expect going from a HDD to a SSD will be a big improvement but how much?
Crystal Disk Benchmark Utility shows us how much. Original HDD, New WD BLACK2 SSD and HDD 1000mb tests shows us.
This laptop isn’t realizing the best 350MB read and 140MB write transfer speeds but I suspect it has to do with the older Serial ATA-150 standard.
Western Digital WD Black² 2.5-inch Dual Drive (SSD + HDD) Hybrid 2.5 inch Hybrid Drive, SSD, WD, Western Digital 2
SSD read [MB/s] HDD read [MB/s] Percentage change Difference
Sequential         235 56.51 315.86% 178.49
512K              229.3 25.09 813.91% 204.21
4K                  19.36 0.325 5856.92% 19.035
QD4K             67.72 0.587 6654.60% 67.133
OH MY! What a sweet upgrade for a old laptop. 315-6655% increase in read performance.
Western Digital WD Black² 2.5-inch Dual Drive (SSD + HDD) Hybrid 2.5 inch Hybrid Drive, SSD, WD, Western Digital 3
SSD write [MB/s] HDD write [MB/s] Percentage change Difference
Sequential      106.6 60.42 76.43% 46.18
512K                69.6 30.32 129.55% 39.28
4K                  27.13 0.447 5969.35% 26.683
QD4K             25.43 0.472 5287.71% 24.958
Write performance is nothing to snicker at either 76-5969% improvements.
Maybe 1000MB datasets are too large as test criteria so lets try 8MB comparisons with ATTO Disk Benchmark.
Western Digital WD Black² 2.5-inch Dual Drive (SSD + HDD) Hybrid 2.5 inch Hybrid Drive, SSD, WD, Western Digital 4
Original HDD
Western Digital WD Black² 2.5-inch Dual Drive (SSD + HDD) Hybrid 2.5 inch Hybrid Drive, SSD, WD, Western Digital 5
WD BLACK 2 SSD
We can see the limitations in this sample. The old WD Scorpio average peaks at transfer rates of 50-60MB/sec for writes and 61/MB/sec for reads where the WD Black 2 SSD average peaks are 110MB/sec writes and 200-250MB/sec reads. Specifications boast 350MB / sec read and 140MB / sec write. I have all the drivers updated so there is some limiting factors depending on motherboard chipsets and I assume since it is older Serial ATA-150. Newer ATA standard and you could realize up to up to 400MB / sec write transfers from statistics I’ve seen on other installs.
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Hidden away in a dark part of the Modders-Inc offices is a man, no a machine, that writes reviews so epic that they have been listed in the top ten best reads by the New York Times. Well that is what we tell him otherwise we have no idea what would happen if he knew the truth.

One Comment

  1. 20 days now since I did this upgrade to the wifes old laptop.
    Every night she sits down, hits the power button, I look at her, she at me and I get the sweetest smile.
    As a client she’s very happy with the improvements. ALL of the complaints have stopped and replaced with :)

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