That's a tougher question to answer. The 840 Pro is positioned as Samsung's premium drive. It uses 19nm MLC NAND.
The 840 EVO is the successor to the original 840 (non-pro). It uses 19nm TLC NAND. TLC NAND offers greater densities by storing 3 bits per cell instead of 2 as with traditional MLC. It makes for a less costly drive, but has fewer program/erase (P/E) cycles and lower write performance. The original 840 was a good enough drive (I have one of them), but the EVO was released later with some pretty innovative technology to mitigate the write penalty - specifically, it features a small amount of SLC NAND in the package that increase write performance. However, it retains the TLC advantage of offering higher capacities at lower price points. The net result is that the 840 Pro is still considered the premium tier, but the EVO actually turns in better performance in some tests. So, what to buy? Price and budget may be your best guide. The 840 Pro tops out at 512GB vs. the EVO's 1TB, so if you want a big drive, the EVO may be the best choice. Personally, I'd probably stick with the Pro for my premium builds, but I'm tempted to get an EVO to play with. You honestly can't go wrong with either. -----Original Message----- From: hardware-boun...@lists.hardwaregroup.com [mailto:hardware-boun...@lists.hardwaregroup.com] On Behalf Of Winterlight Sent: Tuesday, October 1, 2013 10:50 PM To: hardw...@lists.hardwaregroup.com Subject: Re: [H] Crucial M500 Is the PRO or the EVO the better one? At 08:48 PM 10/1/2013, you wrote: >They have the best reliability track record. > >Crucial drives are OK, but I've been witness to several failures. >Intel drives are OK, but not as reliable since switching to Sandforce >controllers. > >The Samsung drives are fast, exceptionally reliable, and competitively >priced. There's no reason to look elsewhere - the last 7 SSDs I've >purchased (personal use) have been exclusively Samsung. >-----Original Message----- >From: hardware-boun...@lists.hardwaregroup.com >[mailto:hardware-boun...@lists.hardwaregroup.com] On Behalf Of >Winterlight >Sent: Tuesday, October 1, 2013 8:17 PM >To: hardw...@lists.hardwaregroup.com >Subject: Re: [H] Crucial M500 > >At 03:15 PM 10/1/2013, you wrote: > >Yes. > > > >However, I would get a Samsung 840 EVO or Samsung 840 Pro - and > >nothing else. > >why the only brand you would buy? Is there something about Crucial or >Intel that isn't good? > > > > >-----Original Message----- > >From: hardware-boun...@lists.hardwaregroup.com > >[mailto:hardware-boun...@lists.hardwaregroup.com] On Behalf Of > >Winterlight > >Sent: Tuesday, October 1, 2013 3:59 PM > >To: hardware@hardwaregroup.com > >Subject: [H] Crucial M500 > > > >Is the Crucial M500 suppose to replace the M4... I'm confused.
