Crucial RealSSD C300 

Released October, 2010
  • 256 GB
  • 2.5" SATA III
  • 128 MB
6.3 Out of 10

Not only are they increasingly the norm for mid-range laptops and pre-built gaming systems, but we've seen huge leaps in performance lately.
by Tech Radar (Sep, 2010)
Shame, then, that its application performance isn't quite as world beating.
by Tech Radar (Aug, 2010)

SSDBoss Review Our evaluation of the Crucial RealSSD C300

read performance

How quickly data is read from the drive

RealSSD C300
4K Random Read, 4K Random Read Access Time and 512K Sequential Read

write performance

How quickly data is written to the drive

RealSSD C300
4K Random Write, 4K Random Write Access Time and 512K Sequential Write

real world benchmarks

How well the drive performs common tasks

RealSSD C300
Windows 7 Boot-up Time, Photoshop Lens Filter and AS SSD ISO Copy


How well the drive performs on common benchmarks

RealSSD C300
PCMark Vantage, AS SSD Score and Tom's Hardware Storage Bench


SSDBoss Score

read performance, write performance, real world benchmarks and Benchmarks

RealSSD C300

Benchmarks Real world tests of the Crucial RealSSD C300

4K Random Read

RealSSD C300
138.72 MB/s
840 EVO
318.8 MB/s
Samsung 840
303.68 MB/s

4K Random Write

RealSSD C300
32.18 MB/s
840 EVO
106.65 MB/s
Samsung 840
76.07 MB/s

Windows 7 Boot-up Time

RealSSD C300
18.7 s
SSDNow V300
8.3 s
Crucial m4
9.1 s

Avg. Power Consumption

RealSSD C300
2.56 Watts
Crucial m4
1.41 Watts
Samsung 840
1.69 Watts

4K Random Read Access Time

RealSSD C300
7.77 ms
SSDNow V 100
38.34 ms
Crucial m4
28.42 ms

4K Random Write Access Time

RealSSD C300
1.8 ms
SSDNow V 100
19.2 ms
SSDNow V300
6.46 ms

Reviews Word on the street for the Crucial RealSSD C300

It is also backwards compatible to SATA II and SATA I. Crucial is using 16 flash chips, the flash controller and a DRAM chip in their design.

First up, it's reasonably priced – a little bit more expensive than Kingston's perhaps, but a lot cheaper than OCZ's offerings.


9.0 Out of 10

What People Are Saying Give it to me straight


It boasts read speeds like nothing we've seen before, which finally make use of the raised bandwidth cap of SATA 6Gbps and beats all but the very best drives in write operations too.
by Tech Radar (Sep, 2010)
SSD read speeds have been getting very close to the limits of the older SATA 3Gbps bandwidth cap.
by Tech Radar (Sep, 2010)
At only $2.10 per GB it is considerably more affordable than the Sandforce drives out there - and delivers equal or higher performance.
by techPowerUp!


When running on a SATA-II controller it is able to surpass most of the Sandforce based drives, in 6 Gb/s mode it even manages to be the fastest SSD we tested so far.
by techPowerUp!
This simulates lots of small files handles simultaneously – which is exactly what happens in normal desktop apps that slow your PC down.
by Tech Radar (Sep, 2010)
In scenarios where the SSD will not gain from the faster speeds of the SATA 6 Gbps interface we also noticed slightly lower performance of the Marvell 6 Gbps controller chip on our ASUS U3S6 card when compared to the Intel ICH10, so that might be an additional point to consider.
by techPowerUp!


The SATA 6 Gb/s tests were conducted using an ASUS U3S6 PCI-Express based SATA 6 Gb/s controller.
by techPowerUp!
Compared to these drives, the C300 has a major unique selling point: SATA 6 Gb/s support (some people might call it SATA III, but the correct name is SATA 6 Gb/s).
by techPowerUp!
9.1Crucial's RealSSD C300 shows impressive real-life performance in both SATA-II and SATA 6 Gb/s mode.
by techPowerUp!


But if you want the fastest read times bar none and a very attractive price point to boot, then the Crucial C300 realSSD is a clear winner.
by Tech Radar (Sep, 2010)


The flash chips are made by Micron and have a capacity of 8 GB each.
by techPowerUp!

Specifications Full list of technical specs


Capacity 256 GB
Cache 128 MB
Interface SATA III
Interface speed 6 Gbit/s
Controller Marvell
Memory type MLC

form factor

Form factor 2.5"
Weight 45 g

manufacturer performance

MTBF 1,200,000 hours
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