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

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

Testing The SanDisk Ultra 3D SSD

Processors Intel Core i7-2600K
Motherboard Intel DP67BG
Memory Four Kingmax 2 GB DDR3-1333 modules
Graphics Card NVIDIA GeForce GTX 1060
SSD & HDD Drives 8 TB Western Digital Gold
1 TB + 120 GB WD Black²
1 TB SanDisk Ultra 3D SSD
1TB WD Blue 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 System Microsoft 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

 

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 Model Capacity Business Disk
WinMark 99
Difference Useful Links
Intel 520 Series 240 GB 77.7 MB/s + 25.3% Review Lowest $
OCZ Vertex 2 (E) 120 GB 74.4 MB/s + 20.0% Review Lowest $
Western Digital Black² 120 GB 63.1 MB/s + 1.8% Review Lowest $
OCZ Vector 256 GB 62.1 MB/s + 0.2% Review Lowest $
SanDisk Ultra 3D 1 TB 62.0 MB/s Baseline Lowest $
WD Blue SSD 1 TB 62.0 MB/s Review Lowest $
HyperX Savage 240 GB 61.9 MB/s – 0.2% Review Lowest $
Intel X25-M G2 160 GB 50.4 MB/s – 23.0% Review Lowest $
WD VelociRaptor 1 TB 29.8 MB/s – 51.9% Review Lowest $
WD Gold 8 TB 23.3 MB/s – 62.4% Review Lowest $

 

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 Model Capacity High-End Disk
WinMark 99
Difference Useful Links
Intel 520 Series 240 GB Beyond limit NA Review Lowest $
OCZ Vector 256 GB Beyond limit NA Review Lowest $
SanDisk Ultra 3D 1 TB 277 MB/s Baseline Lowest $
HyperX Savage 240 GB 262 MB/s – 5.7% Review Lowest $
OCZ Vertex 2 (E) 120 GB 250 MB/s – 10.8% Review Lowest $
Western Digital Black² 120 GB 246 MB/s – 12.6% Review Lowest $
WD Blue SSD 1 TB 62.0 MB/s – 25.9% Review Lowest $
Intel X25-M G2 160 GB 215 MB/s – 128.8% Review Lowest $
WD VelociRaptor 1 TB 172 MB/s – 161.0% Review Lowest $
WD Gold 8 TB 23.3 MB/s – 208.3% Review Lowest $

 

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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