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pcie 2.0 has 8gb bandwidth and msi radeon r9 270x requires 179.2 memory bandwidth???

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  • MSI
  • Bandwidth
  • Motherboards
  • Memory
  • Graphics Cards
  • Radeon
Last response: in Motherboards
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October 10, 2014 11:52:59 PM

pcie 2.0 has 8gb bandwidth and msi radeon r9 270x requires 179.2 memory bandwidth, CAN IT WORK, plz explain I am new ! Thanks

More about : pcie 8gb bandwidth msi radeon 270x requires 179 memory bandwidth

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a c 364 V Motherboard
a b } Memory
a c 233 U Graphics card
October 11, 2014 12:21:12 AM

pcie2.0 has 5 GT/s or 500MB/s transfer rate - http://en.wikipedia.org/wiki/PCI_Express - per lane. x8 is 4GB/s

Radeon don't list transfer rates for their GPUs - http://www.amd.com/en-us/products/graphics/desktop/r9 but they'll be in 100's MB/s. No graphics cards saturate the lanes in pcie2.0 x8.

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a c 364 V Motherboard
a b } Memory
a c 233 U Graphics card
October 11, 2014 2:52:40 AM

Yep - see it - up to 179.2 GB/s. That's its theoretical interface max. Not the max out of the R9 270X.
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October 11, 2014 4:40:00 AM

i7Baby said:
Yep - see it - up to 179.2 GB/s. That's its theoretical interface max. Not the max out of the R9 270X.


Thanks for helping me, but as I am new plz explain me what is the theoretical interface and the 179.2 GB/S ??????
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a c 364 V Motherboard
a b } Memory
a c 233 U Graphics card
October 11, 2014 2:18:17 PM

Google it. Or just give up. All cards work fine.
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