randomaeiou
n00b
- Joined
- Apr 24, 2010
- Messages
- 14
Up to now, Intel has been deliberately handicapping Atoms to prevent them from cannibalizing more lucrative sales of other products. However, with the en-masse shift in that market segment to AMD's Zacate, such a strategy is realistically no longer viable.
A very simple fix, using existing technology, would be to create a Sandy Bridge (or even Ivy Bridge!) equivalent of the single ULV core Core2Solo SU3500, with HD3000 or whatever they have on Ivy Bridge, with HyperThreading and Turbo enabled. Given the 17w TDP of the i5-2537M, a halved version of it should take somewhere around 8-10w, which competes well against the C-series Fusions and should blow the E-series Fusions out of the water. If we talk about 22nm Ivy Bridge and FinFETs, the TDP of this chip could get even uglier for AMD...
With Turbo and HT, the single-threaded performance of the vastly more powerful SB/IB core will blow Ontario/Zacate, or likely even Wichita/Krishna out of the water. Aggressive downclocking and power management combined with a generous Turbo boost should provide an excellent mix of battery life and power on demand. Multi threaded performance is likely to be very similar, at least to Zacate and Wichita, maybe not the possible quad core Krishna's. Given that the target of this chip would be low power devices, possibly even tablets, the hope would be that multithreaded, CPU intensive applications would form a relatively tiny proportion of the expected workload, which further highlights the IPC advantage of SB/IB. With Sandy Bridge HD3000, the raw graphics power of this chip will also be better than a Zacate's 6310 - unfortunately driver support might be a sore point.
Not sure about costings though... Given that the 1k units price of i5-2537M is $250, estimated somewhere between $150 and $200? Unfortunately the e350 will probably beat that hands down. However, to Intel's advantage is that all the R&D and fab design work has already been done, thereby massively reducing production costs as well as allowing a product to come to market quickly. Cutting out however much die area a SB core takes up, along with its cache, along with the reduction in complexity from having a single-core setup, will further drop production costs.
In summary, an Intel chip to counter the Bobcat threat would be something that looked like a ~1.0-1.3GHz single core SB with hyperthreading, turbo to 1.5-1.8GHz (okay, maybe not turbo since it's single core, but very aggressive power gating and ramping, you get my drift) and HD3000 graphics, with a sub-10w TDP and hopefully a sub-$150 1k unit price. Quick back-of-napkin calculations based upon 4C12EU, 2C12EU and 2C6EU die area estimates puts a 1C12EU processor at ~100mm2 on 32nm, which is quite a bit bigger than Zacate's 75mm2 on 40nm, but hey...
Whaddaya thunk?
And if they REALLY want to get funky, incorporate a single 32GB or 64GB flash chip into the companion southbridge, particularly if the single core is going to be Ivy Bridge, with its rumoured inherent ability to use SSD for write caching. This way, no matter how you look at it, the small SSD will be beneficial, either as a standalone drive in tablet-style devices, thus removing the need for another drive, or as a cache for a spinning drive in laptop and HTPC form factors, as the rumoured upcoming 20GB Intel SSD is going to be for.
A very simple fix, using existing technology, would be to create a Sandy Bridge (or even Ivy Bridge!) equivalent of the single ULV core Core2Solo SU3500, with HD3000 or whatever they have on Ivy Bridge, with HyperThreading and Turbo enabled. Given the 17w TDP of the i5-2537M, a halved version of it should take somewhere around 8-10w, which competes well against the C-series Fusions and should blow the E-series Fusions out of the water. If we talk about 22nm Ivy Bridge and FinFETs, the TDP of this chip could get even uglier for AMD...
With Turbo and HT, the single-threaded performance of the vastly more powerful SB/IB core will blow Ontario/Zacate, or likely even Wichita/Krishna out of the water. Aggressive downclocking and power management combined with a generous Turbo boost should provide an excellent mix of battery life and power on demand. Multi threaded performance is likely to be very similar, at least to Zacate and Wichita, maybe not the possible quad core Krishna's. Given that the target of this chip would be low power devices, possibly even tablets, the hope would be that multithreaded, CPU intensive applications would form a relatively tiny proportion of the expected workload, which further highlights the IPC advantage of SB/IB. With Sandy Bridge HD3000, the raw graphics power of this chip will also be better than a Zacate's 6310 - unfortunately driver support might be a sore point.
Not sure about costings though... Given that the 1k units price of i5-2537M is $250, estimated somewhere between $150 and $200? Unfortunately the e350 will probably beat that hands down. However, to Intel's advantage is that all the R&D and fab design work has already been done, thereby massively reducing production costs as well as allowing a product to come to market quickly. Cutting out however much die area a SB core takes up, along with its cache, along with the reduction in complexity from having a single-core setup, will further drop production costs.
In summary, an Intel chip to counter the Bobcat threat would be something that looked like a ~1.0-1.3GHz single core SB with hyperthreading, turbo to 1.5-1.8GHz (okay, maybe not turbo since it's single core, but very aggressive power gating and ramping, you get my drift) and HD3000 graphics, with a sub-10w TDP and hopefully a sub-$150 1k unit price. Quick back-of-napkin calculations based upon 4C12EU, 2C12EU and 2C6EU die area estimates puts a 1C12EU processor at ~100mm2 on 32nm, which is quite a bit bigger than Zacate's 75mm2 on 40nm, but hey...
Whaddaya thunk?
And if they REALLY want to get funky, incorporate a single 32GB or 64GB flash chip into the companion southbridge, particularly if the single core is going to be Ivy Bridge, with its rumoured inherent ability to use SSD for write caching. This way, no matter how you look at it, the small SSD will be beneficial, either as a standalone drive in tablet-style devices, thus removing the need for another drive, or as a cache for a spinning drive in laptop and HTPC form factors, as the rumoured upcoming 20GB Intel SSD is going to be for.
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