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I think Threadripper will have 2 chips per unit instead of 4 like Epyc. That should make them smaller and cheaper. If so it would mean that making motherboards
by sqeaky 9y ago
I think Threadripper will have 2 chips per unit instead of 4 like Epyc. That should make them smaller and cheaper. If so it would mean that making motherboards would be simpler so those would be cheaper too.
I think AMD also stated there will be no dual CPU Threadripper setups. so the CPU interconnect stuff also won't need to exist on threadripper motherboards.
- sliken 9y agoActually I believe threadripper and epyc use the same (4094 pin/contact) socket. So the same motherboards should work.
- dom0 9y agoThey're marketed as different sockets, so I wouldn't be surprised if that does not work. E.g. because a SP3r2 motherboard doesn't route power to unpopulated dice on the module.
- anoother 9y agoPast experience suggests it's very likely they will be compatible, at least at a basic level. See eg. or Socket 'L' vs. 'F' in AMD's history (hint -- they're the same thing), or the various Socket 2011 Intel iterations across server/enthusiast markets. You may lose out on some features (eg. RDIMM support with server CPU, overclocking support in either direction, etc.) Untimately, I hope, the cross-compatibility of EPYC CPUs on enthusiast chipsets will be a decision for motherboard manufacturers to make, as it has been in the past. 64 PCIe lanes should be enough for... at least some of us ;) ETA: As parent mentioned, the situation this time is more complicated. Threadripper in an EPYC board is likely to be problematic -- the CPU doesn't have enough PCIe/Infinty Fabric connectivity to allow CPU links and PCIe to be active simultaneously. Even in a 1P system, only half of the board's potential PCIe lanes would be available. Due to these issues, it's likely such a setup may not be supported. It would be a strange thing to try in the first place, however, especially if equivalent EPYC parts end up similarly-priced to Threadripper. EPYC in a Threadripper board is the news I'm hoping (and expecting) to be better -- the parent talked about powering the extra dies... an interesting consideration, though I expect (and hope) the only pins which won't be broken out on a Threadripper board will be the extra PCIe lanes.
- IanCutress 9y agoThe socket will be the same, but the pin outs will be different as well as the notching. This won't be a socket 775/771 situation.
- anoother 9y agoOh, that is a shame.
- Already__Taken 9y agoYour autocorrect keeps calling the dice not die by the way.