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I'm looking to get a RAM upgrade for my SONY VAIO VPCEH25FM. If I get DDR4, is it compatible with a DDR3 slot?
Jacky Xie
Posted 2015-08-03T21:11:40.897
Reputation: 404
Is DDR4 RAM compatible in a DDR3 RAM slot?
Answers
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No, DDR3 and DDR4 are not cross compatible. The physical sockets are different among other things like input voltage, pin count, etc. See the picture below for a full size DIMM, which would be similar to a SODIMM.
tbenz9
Posted 2015-08-03T21:11:40.897
Reputation: 5 868
2how does DDR3L factor in? how does it compare with DDR3 and DDR4? – nyxee – 2017-01-08T22:44:07.580
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For nyxee's question, DDR3L is different from DDR3 and DDR4 as it can work on a voltage range. The DDR3L RAM consumes lesser voltage compared to the DDR3. DDR3L is a dual voltage capable memory SoDIMM, which supports operation at both 1.5V and 1.35V.DDR3 works on 1.5v only while DDR4 consumes 1.2v only.DDR3 RAM uses a 240-pin connector, while DDR4 RAM uses a 288-pin connector. For more information go through this link.
NeoWelkin
Posted 2015-08-03T21:11:40.897
Reputation: 61
They say it's different slots
1Have you checked the manual? Does it say that DDR4 is supported? – gronostaj – 2015-08-03T21:26:03.657
No, I got it 3 years ago and I threw away the manual immediately – Jacky Xie – 2015-08-03T22:36:36.683