haxxiy on 07 May 2025
| sc94597 said: Yeah, so it seems that using the Jetson Power Estimator Tool only made sense with the assumption that this is just a cut Orin chip with a different CPU (A78C rather than A78AE.) Looks like it is indeed not just a "cut down Orin T234." Each SM is smaller than a T234 SM. So it's not just the configuration that is custom here. |
Professional Ampere has much more cache and additional logic related to the tensor cores and FPUs than the consumer parts, so it makes sense all of that stuff would be removed to cut down on the die size.
I wouldn't be surprised if the actual SM would have been even smaller than the traditional consumer parts; console manufacturers do that sort of stuff all the time.
