DDR3 and DDR4 Laptop Memory Compatible? No.

Daki · 2018-05-19T17:06:05+00:00

Are DDR3 and DDR4 laptop memory (RAM) compatible? That’s a common question when it comes to memory upgrades. For instance, you bought a new laptop with DDR4 RAM and want to add more memory to it by inserting a DDR3 RAM module from your older laptop. You wonder if that’s possible. Unfortunately, that can’t be done. DDR3 and DDR4 laptop memory are not compatible / interchangeable. First of all, a DDR3 laptop RAM module can’t physically fit into a DDR4 laptop RAM slot and vice versa. Notches on the connectors of memory sticks are on different places. The same applies to corresponding bumps in the RAM slots on notebook’s motherboards. Also, the number of pins doesn’t match. A DDR3 laptop memory module has 204 pins, whereas DDR4 has 260. Finally, DDR3 memory is a bit shorter than DDR4 – 2.66 versus 2.74 inches. So, a DDR3 memory module won’t fit in a DDR4 slot… And a DDR4 stick is incompatible with a DDR3 slot… Besides the physical differences, DDR3 and DDR4 RAM differ in voltages. DDR3 uses a voltage of 1.5V (or 1.35V for DDR3L variant). DDR4 uses 1.2V. It is more power efficient and generally faster, but doesn’t noticeably improve overall performance nor battery life of notebooks. Note: If you see “SODIMM” in specs of both DDR3 and DDR4 laptop memory, that doesn’t mean they are compatible. SODIMM only means they are small memory modules commonly used in laptops and some small form factor PCs, as opposed to physically much bigger DIMM memory used in traditional desktop computers. As a side note, DDR3 and DDR4 DIMMs aren’t compatible neither.

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- May 19, 2018 at 5:06 pm #58856 Reply
  Daki
  Are DDR3 and DDR4 laptop memory (RAM) compatible? That’s a common question when it comes to memory upgrades. For instance, you bought a new laptop with DDR4 RAM and want to add more memory to it by inserting a DDR3 RAM module from your older laptop. You wonder if that’s possible. Unfortunately, that can’t be done. DDR3 and DDR4 laptop memory are not compatible / interchangeable.
  
  First of all, a DDR3 laptop RAM module can’t physically fit into a DDR4 laptop RAM slot and vice versa. Notches on the connectors of memory sticks are on different places. The same applies to corresponding bumps in the RAM slots on notebook’s motherboards. Also, the number of pins doesn’t match. A DDR3 laptop memory module has 204 pins, whereas DDR4 has 260. Finally, DDR3 memory is a bit shorter than DDR4 – 2.66 versus 2.74 inches.
  
  So, a DDR3 memory module won’t fit in a DDR4 slot…
  
  And a DDR4 stick is incompatible with a DDR3 slot…
  
  Besides the physical differences, DDR3 and DDR4 RAM differ in voltages. DDR3 uses a voltage of 1.5V (or 1.35V for DDR3L variant). DDR4 uses 1.2V. It is more power efficient and generally faster, but doesn’t noticeably improve overall performance nor battery life of notebooks.
  
  Note: If you see “SODIMM” in specs of both DDR3 and DDR4 laptop memory, that doesn’t mean they are compatible. SODIMM only means they are small memory modules commonly used in laptops and some small form factor PCs, as opposed to physically much bigger DIMM memory used in traditional desktop computers. As a side note, DDR3 and DDR4 DIMMs aren’t compatible neither.
- August 27, 2018 at 12:57 am #65954 Reply
  Anonymous
  DDR3 and DDR4 laptop memory are not compatible/interchangeable. You cannot interchange DDR3 and DDR4 laptop memory. Thanks, for sharing the information which is mention here. Keep posting such type of information.
- October 19, 2018 at 8:12 am #65955 Reply
  Anonymous
  thanks for this post ,easily understandable .
- November 19, 2018 at 5:29 am #65956 Reply
  Anonymous
  This is nice post. A DDR3 laptop RAM module can not physically fit into a DDR4 laptop RAM slot and vice versa. Notches on the connectors of memory sticks are on different places. Thanks!!
- August 9, 2019 at 4:33 am #65957 Reply
  Anonymous
  How about DDR3L and DDR4
- August 10, 2019 at 6:33 pm #65958 Reply
  Daki
  They are not compatible.
- August 28, 2019 at 1:31 am #65959 Reply
  Anonymous
  Thanks for the info and quite educative piece of information
- October 3, 2019 at 1:20 pm #65960 Reply
  Anonymous
  How do I check if my laptop uses ddr3 or ddr4?
- October 6, 2019 at 5:38 pm #65961 Reply
  Anonymous
  Hi, if you don’t have a specs sheet of your laptop, you can download CPU-Z program. Under the Memory tab, CPU-Z lists the memory type, so you can see it there. CPU-Z is a free program. Also, you can do the same with HW-Info program for free.
- December 6, 2019 at 3:38 am #65962 Reply
  Anonymous
  Hi Dear,
  Good news,our factory have promotions on ram memory now..
  there are the price for the ram laptop/desktop as follow:
  Application:Desktop/Laptop
  DDR2 2G 800mhz 2.5$
  DDR3 2G 1333/1600mhz 3.1$
  DDR3 4G 1333/1600mhz 7.5$
  DDR3 8G 1333/1600mhz 16.5$
  DDR4 4G 2400/2666mhz 9.7$
  DDR4 8G 2400/2666mhz 17.8$
  DDR4 16G 2400/2666mhz 35.5$
  SSD 120G 11.4$
  SSD 240G 19.8$
  
  For further question please sent us message.
- January 31, 2020 at 3:56 am #65963 Reply
  Anonymous
  How do i buy from you???
- February 29, 2020 at 11:02 pm #65964 Reply
  Anonymous
  How do i buy from you??
  i need DDR4 16G 2400/2666mhz
- August 20, 2020 at 11:44 pm #65965 Reply
  Anonymous
  What’s your website to order RAMs?
- March 14, 2021 at 9:56 am #65966 Reply
  Anonymous
  From where i can Purchase.
  DDR3 4G 1333mhz.
- June 10, 2021 at 8:50 am #65967 Reply
  Anonymous
  Hi
  I want to order a DDR3 8G 1333/1600mhz SODIMM RAM for my laptop. How can I place order for the same and what is the price?
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