The SM841 is identical to a RETAIL 840 Pro, I've Crystaldismark tested both side by side, they're identical.
The difference is that the SM841 is OEM firmware, Samsung Magician does not work with OEM drives (no biggie) and you don't get the Retail 5 year warranty as all OEM parts are warrantied only through the OEM company, such as DELL, HP, SONY, Lenovo, ASUS, ETC.
Also, Crystaldisk shows my DELL SM841 as a PM841. All I cared about was the performance though, and the performance is identical, everything is the same but OEM firmware, and you don't get that fancy orange square nor the Samsung white text painted.
I just reread the review i linked previously it has slower write speeds like i said before( i do have 840 pro and myn at least does have faster write)and RAPID provides quite a big boost in my opinion so to label them as the same drive would be incorrect( there is a reason it has different part number).
The only thing different is the firmware. Firmware = similar to software.
The physical hardware is the same drive. Also, you have to compare 256GB to 256GB or 512GB to 512GB as the 512GB is a little faster write than the 256GB, and both 256GB & 512GB are WAY WAY Faster than the 128GB models.
I have BOTH a 256GB SM841 from a DELL and a RETAIL BOX 840 PRO, and this is their actual crystaldiskmark scores:
When the software SAMSUNG MAGICIAN is used to tweak the OS, YES IT DOES inflate performance a LOT, but that’s cheating, especially with Rapid Mode it’s not really bench testing the SSD, it’s cashing system RAM. IF Samsung Magician worked with OEM firmware, the scores would be the same for either drive.
Anyone know of a way to flash an OEM PM841/SM841 with a RETAIL 840 Firmware?