The 1TB SanDisk Ultra 3D SSD (SDSSDH3-1T00) Review

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The 1TB SanDisk Ultra 3D SSD Over-Provisioning, Capacity, Transfer Rate Profile, WinBench Results & Transfer Rate Range

Testing The SanDisk Ultra 3D SSD

ProcessorsIntel Core i7-2600K
MotherboardIntel DP67BG
MemoryFour Kingmax 2 GB DDR3-1333 modules
Graphics CardNVIDIA GeForce GTX 1060
SSD & HDD Drives8 TB Western Digital Gold
1 TB + 120 GB WD Black²
1 TB SanDisk Ultra 3D SSD
1 TB WD VelociRaptor
256 GB OCZ Vector
240 GB HyperX Savage
240 GB Intel 520 Series
160 GB Intel X25-M G2
120 GB OCZ Vertex 2 (E)
Operating SystemMicrosoft Windows 7 64-bit
Microsoft Windows Vista 32-bit

Testing Methodology


Over-Provisioning & Usable Capacity

This 1TB SanDisk Ultra 3D SSD (Price Check) has a maximum storage capacity of 1,024 GB, courtesy of eight 128 GB SanDisk 3D NAND chips. Of that, a mere 24 GB has been set aside for garbage collection, wear levelling and replacement of failing blocks.

1TB SanDisk Ultra 3D SSD capacityOrdinarily, the limited 2.4% over-provisioning may impact long-term performance and lifespan. However, SanDisk mitigated that using a large 13 GB pseudo-SLC write cache they call nCache 2.0.

After it is formatted in NTFS, the actual formatted capacity is 1,000,202,039,296 bytes. This is slightly (202 MB) more than the official formatted capacity of 1,000 GB.

With about 124 MB of space allocated to the NTFS file system, the actual usable capacity is just above 1,000 GB.


Transfer Rate Profile

We compared the 1TB SanDisk Ultra 3D SSD (Price Check) to the 1TB WD Blue SSD. As you can see, it has a sustained throughput of about 410 MB/s, which makes it almost twice as fast as the 1TB WD Blue SSD, which uses TLC NAND memory.

1TB SanDisk Ultra 3D SSD transfer profile

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Business Disk WinBench 99

1TB SanDisk Ultra 3D SSD Business WinMark results

The 1TB SanDisk Ultra 3D SSD (Price Check) virtually matched the 1TB WD Blue SSD in this test.

Drive ModelCapacityBusiness Disk
WinMark 99
DifferenceUseful Links
Intel 520 Series240 GB77.7 MB/s+ 25.3%ReviewLowest $
OCZ Vertex 2 (E)120 GB74.4 MB/s+ 20.0%ReviewLowest $
Western Digital Black²120 GB63.1 MB/s+ 1.8%ReviewLowest $
OCZ Vector256 GB62.1 MB/s+ 0.2%ReviewLowest $
SanDisk Ultra 3D1 TB62.0 MB/sBaselineLowest $
WD Blue SSD1 TB62.0 MB/sReviewLowest $
HyperX Savage240 GB61.9 MB/s– 0.2%ReviewLowest $
Intel X25-M G2160 GB50.4 MB/s– 23.0%ReviewLowest $
WD VelociRaptor1 TB29.8 MB/s– 51.9%ReviewLowest $
WD Gold8 TB23.3 MB/s– 62.4%ReviewLowest $


High-End Disk WinBench 99

1TB SanDisk Ultra 3D SSD High-End WinMark results

The 1TB SanDisk Ultra 3D SSD (Price Check) did very well in the High-End test, beating virtually all other competitors, except for the 240 GB HyperX Savage and the 240 GB Intel 520 Series SSDs.

Drive ModelCapacityHigh-End Disk
WinMark 99
DifferenceUseful Links
Intel 520 Series240 GBBeyond limitNAReviewLowest $
OCZ Vector256 GBBeyond limitNAReviewLowest $
SanDisk Ultra 3D1 TB277 MB/sBaselineLowest $
HyperX Savage240 GB262 MB/s– 5.7%ReviewLowest $
OCZ Vertex 2 (E)120 GB250 MB/s– 10.8%ReviewLowest $
Western Digital Black²120 GB246 MB/s– 12.6%ReviewLowest $
WD Blue SSD1 TB62.0 MB/s– 25.9%ReviewLowest $
Intel X25-M G2160 GB215 MB/s– 128.8%ReviewLowest $
WD VelociRaptor1 TB172 MB/s– 161.0%ReviewLowest $
WD Gold8 TB23.3 MB/s– 208.3%ReviewLowest $
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Transfer Rate Range

This chart shows you the range of memory cell-to-controller transfer rates for SSDs, or the range of platter-to-buffer transfer rates from the innermost track to the outermost track in HDDs.

1TB SanDisk Ultra 3D SSD transfer rate range

Despite boasting an official peak read speed of 560 MB/s, the 1TB SanDisk Ultra 3D SSD (Price Check) could only hit 411 MB/s. That is impressive in its own right, but puts it below the 256 GB OCZ Vector and the 240 GB HyperX Savage SSDs.

Next Page > IO Meter Benchmark Results


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