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What is PC3-12800

Tags:
  • DDR3
  • RAM
  • Memory
Last response: in Memory
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October 4, 2014 1:28:54 AM

So hi guys i am building new pc right now and i just noticed that the RAM was PC3-12800
Normally i just use DDR3 lets say 1333 but what does PC3-12800 mean?

More about : pc3 12800

a b } Memory
October 4, 2014 1:40:58 AM

PC3-12800 is DDR3 RAM that operates at 1600MHz, PC2-6400 would be DDR2 RAM that operates at 800MHz.
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a c 144 } Memory
October 4, 2014 1:52:18 AM

Ikapewpew said:
So hi guys i am building new pc right now and i just noticed that the RAM was PC3-12800
Normally i just use DDR3 lets say 1333 but what does PC3-12800 mean?


PC3-12800 is a PC DRAM bus specification. All x86 based computers use a 64 bit wide memory channel. When that memory channel is populated with DIMMs that use DDR3-1600 DRAM chips, the bandwidth is 12.8 gigabytes per second.

PC3-12800 <- per bus bandwidth specification (12.8 gigabites bidirectional per second per channel)

DDR3-1600 <- per chip transfer rate specification (1600 megatransfers per second per IO pin)

Many mobile devices use 32 bit data buses. In this case, DDR3-1600 chips would yield PC3-6400.
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