Samsung SSD 840 EVO 250GB & 1TB Drives Tested

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Our Test Methodologies: Under each test condition, the Solid State Drives tested here were installed as secondary volumes in our testbed, with a standard spinning hard disk for the OS and benchmark installations. Out testbed's motherboard was updated with the latest BIOS available as of press time and AHCI (or RAID) mode was enabled. The SSDs were secure erased prior to testing, and left blank without partitions for some tests, while others required them to be partitioned and formatted, as is the case with our ATTO, PCMark 7, and CrystalDiskMark benchmark tests. Windows firewall, automatic updates and screen savers were all disabled before testing. In all test runs, we rebooted the system, ensured all temp and prefetch data was purged, and waited several minutes for drive activity to settle and for the system to reach an idle state before invoking a test.

HotHardware Test System
Intel Core i7 and SSD Powered

Processor -

Motherboard -

Video Card -

Memory -

Audio -

Hard Drives -


Hardware Used:
Intel Core i7-2600K

Asus P8Z6-V Pro
(Z68 Chipset, AHCI Enabled)

NVIDIA GeForce GTX 285

4GB Kingston DDR3-1600

Integrated on board

WD Raptor 150GB (OS Drive)
Samsung SSD 830 (256GB)
OCZ Vertex 3 (200GB)
Corsair Force GT (240GB)
Crucial M4 (256GB)
Samsung 840 EVO (250GB, 1TB)
Intel SSD 520 (240GB)
OCZ Vertex 4 (256GB)
SanDisk Extreme II (480GB)

OS -
Chipset Drivers -
DirectX -

Video Drivers

Relevant Software:
Windows 7 Ultimate SP1 x64
Intel, iRST 10.5.1027
DirectX 11

NVIDIA GeForce 275.33

Benchmarks Used:
IOMeter 1.1.0 RC
HD Tune v4.61
ATTO v2.47
CrystalDiskMark v3.01 x64
PCMark 7
SiSoftware Sandra 2012

I/O Subsystem Measurement Tool

As we've noted in previous SSD articles, though IOMeter is clearly a well-respected industry standard drive benchmark, we're not completely comfortable with it for testing SSDs. The fact of the matter is, though our actual results with IOMeter appear to scale properly, it is debatable whether or not certain access patterns, as they are presented to and measured on an SSD, actually provide a valid example of real-world performance for the average end user. That said, we do think IOMeter is a reliable gauge for relative available throughput within a given storage solution. In addition there are certain higher-end workloads you can place on a drive with IOMeter, that you an't with most other storage benchmark tools available currently.

In the following tables, we're showing two sets of access patterns; our custom Workstation pattern, with an 8K transfer size, 80% reads (20% writes) and 80% random (20% sequential) access and IOMeter's default access pattern of 2K transfers, 67% reads (34% writes) and 100% random access.

The new Samsung SSD 840 EVO series of drives led the pack according to IOMeter and the two access patterns we used for testing. The 1TB drive in particular finished well ahead of any of the other drives we tested, though the 250GB was no slouch in its own right.

In terms of total data transferred, the Samsung SSD 840 EVO series drives also outpaced every other drive we tested. And once again, the 1TB drive took the top spot overall.

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realneil one year ago

The 1TB drive is drool worthy.

(honestly, they all are)

BobbyChippyTostitos one year ago

I bought a 250, cannot wait for rome total war with my new rig. I also found games like OOTP Baseball run 10x times better on SSDs.

SmogHog one year ago

How does the drive perform when it's the primary boot drive with an OS on it and filled 25%,50 % and 75%.

Who uses their SSD with 0% of data on it and not as the boot drive?

What good are reviews of empty drives tested from another drive that's in safe mode.

Dave_HH one year ago

It's all relative. If you want that kind of data, just look at out IOMeter tests. It near fills the drive and then hits it with a continuous read/write pattern of random workloads. You're asking an interesting question but if you look at the data and actually read about the testing, the information you're looking for is in there.

realneil one year ago

[quote user="SmogHog"]Who uses their SSD with 0% of data on it and not as the boot drive?[/quote]

On one of my PCs, I use a 256GB SSD as boot drive and I have a 120GB SSD as my Steam drive.

I have a 480GB SSD that's going into another PC soon. It will be my OS drive and a 240GB SSD will be the Steam drive on it.

Both PCs will have platter drives for mass storage. SSD Prices have dropped a lot in the past few years,........

spock one year ago

Solid-state drives are one of the best drivers on the market but they have a very high pricetag like this one for instance Samsung 840 EVO Series 1TB SSD it has a pricetag of $799. I have noticed that the price range solid-state drives start as low as $75 for a 30 gigabyte up to $799 for 1 TB. I am currently running a 256 GB hard drive I would like to upgrade the prices to high from me to buy one it would be nice one day see the prices drop down to a point where it would be affordable to upgrade to a new hard drive.

RyanEvans one year ago

$799 for 1TB!! No way!! this is too expensive & not sure on the reliability aspect as well since this happens to be recently launched. I am quite contented & happy with my 240GB Kingston hyperx 3K boot volume. The advantage I notice in my piece of hardware is the sandforce controller which is very smart in terms of incompressible data handling & also manages the overall performance of the SSD better!

cloef one year ago

For those of us who are curious about the longevity of the new 19nm TLC there is an endurance test recently launched over at

BigKihd one year ago

I would be amazing to get this, these are such great drives. Maybe one day ;)

FuadEfendi 6 months ago

Hi Marco,

Thank you for the excellent review; I'd like to add important point: WARRANTY.

1) 840 PRO, 5 years limited (client PC use only)***; *** For enterprise applications, 5 years limited warranty assumes a maximum average workload of 40GB/day (calculated based on host writes and on the industry standard of 3-month data retention). Workloads in excess of 40GB/day are not covered under warranty.

2) 840 EVO, 3 years limited.


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