3 ms·
LDPPR4x is a very odd choice for graphics. LPDDR4x soundly loses to HBM2E on energy/bandwidth ratio. 6-8 picojoules per bit to 1.5-2.5
by baybal2 6y ago
LDPPR4x is a very odd choice for graphics.
LPDDR4x soundly loses to HBM2E on energy/bandwidth ratio.
6-8 picojoules per bit to 1.5-2.5
- wmf 6y agoLaptops generally can't afford HBM. I have a hunch that DG1 is Tiger Lake with the cores cut out so that's where the memory controller comes from.
- baybal2 6y agoHBM memory is not that expensive, what is expensive is the (co-)packaging But Intel has already committed to using active silicon interposer instead of abf for substrate, which is way more expensive.
- wmf 6y agoI have no idea what that means, but DG1 does not have any kind of interposer. In the context of DG1, LPDDR is cheaper than HBM.