Just asking if cellular modem uses main CPU to do some of the work, does that mean that it cannot go into deeper sleep mode and use more battery power when idle.
From what I know, the basic connectivity is all done inside the cellular chip itself. The CPU is used when data outside of this needs to be sent or received. So if the phone is not being used, this would probably include things like checking for voice mail, text messages, etc. Basically anything using a higher layer protocol (TCP, etc).
But as to the CPU handling the actual connection itself, I do not believe this to be the case.
I definitely noticed an increase in overall DL throughput when I tether my phone to the laptop vs just downloading directly onto the phone. Now is this a matter of the phone's CPU causing a bottleneck or the phone's Flash memory write bottlenecking I'm not sure.
If your phone is idle and suspended it will still communicate with the tower to let it know where you are (the phone lets the tower know it's still on and attached) so it knows where to route incoming calls, sms ...etc.
The diagram seems to compare older generations of chips. That shoudl make the claim a few years old and its validity might have been overtaken by design changes in current generation of chips.
Many other SoC's also has in-built modems as separate cores on-die. A second ship for baseband is not always needed. So it would be interesting to see if Nvidia is gonna do any single-chip solutions. For example an ST-E U8500 SoC does have built in baseband. RF-transceiver is still needed though.
Some company like Intel needs to buy out NVIDIA and fire their arrogant CEO immediately, stemming the tide of shoddy bumpgate products poisoning so many devices.
To me nvidia seems to be in a somewhat higher than normal desperate mode. They are getting into markets that no company in their field would have ever thought about 5 years ago. I guess they see their main core busniess going down hill?
"I guess they see their main core busniess going down hill? "
Let's see.
They are effectively out of the chipset market. Intel is forcing them out of the low end graphics market. AMD is giving them a very hard time in the mid to high end graphics market.
All they really have going for them now is the mobile / tablet market, and Qualcomm and other chip makers are catching up to the Tegra 2.
According to both companies first quarter 2011 results, AMD brought in a profit of $510 million, while nVidia brought in $137 million. Now obviously some of AMD's profit is from the CPU and Chipset side of things, but if broken down, I am sure the ATI side of things brings in more profit than either of those.
Not to mention Dell and Apple both just switched from nVidia to ATI in many of their machines. The new Dell Precisions, Apple MacBook Pros and iMacs are all ATI only.
nVidia is not in a good position currently period.
Actually AMD's net income for Q1 was something around $56 million. The $510 million figure that everyone likes quoting as proof that AMD is doing well includes the proceeds from their reducing their ownership share in global foundries to about 14% I believe it is.
Khato is right. AMD's beautiful finance report is tricky. Without the income from GF, AMD did really poor in 1st season. Both CPU and GPU made much less money than last year. For GPU, it goes down to 19 million from 5x million. The net income of Intel is almost 20x to AMD's CPU dept. We could understand that Intel's product line is stronger and its market share is obviously larger. But AMD holds competitive GPU product line and more market share, Nvidia still beat it. AMD is struggling. Unless its bulldozer rocks, AMD‘s way will be more narrow.
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Alien959 - Monday, May 9, 2011 - link
Just asking if cellular modem uses main CPU to do some of the work, does that mean that it cannot go into deeper sleep mode and use more battery power when idle.Stuka87 - Monday, May 9, 2011 - link
From what I know, the basic connectivity is all done inside the cellular chip itself. The CPU is used when data outside of this needs to be sent or received. So if the phone is not being used, this would probably include things like checking for voice mail, text messages, etc. Basically anything using a higher layer protocol (TCP, etc).But as to the CPU handling the actual connection itself, I do not believe this to be the case.
EJ257 - Monday, May 9, 2011 - link
I definitely noticed an increase in overall DL throughput when I tether my phone to the laptop vs just downloading directly onto the phone. Now is this a matter of the phone's CPU causing a bottleneck or the phone's Flash memory write bottlenecking I'm not sure.If your phone is idle and suspended it will still communicate with the tower to let it know where you are (the phone lets the tower know it's still on and attached) so it knows where to route incoming calls, sms ...etc.
Conficio - Monday, May 9, 2011 - link
The diagram seems to compare older generations of chips. That shoudl make the claim a few years old and its validity might have been overtaken by design changes in current generation of chips.However, an interesting move for NVIDIA.
Penti - Wednesday, May 11, 2011 - link
Many other SoC's also has in-built modems as separate cores on-die. A second ship for baseband is not always needed. So it would be interesting to see if Nvidia is gonna do any single-chip solutions. For example an ST-E U8500 SoC does have built in baseband. RF-transceiver is still needed though.Pessimism - Monday, May 9, 2011 - link
Some company like Intel needs to buy out NVIDIA and fire their arrogant CEO immediately, stemming the tide of shoddy bumpgate products poisoning so many devices.formulav8 - Monday, May 9, 2011 - link
To me nvidia seems to be in a somewhat higher than normal desperate mode. They are getting into markets that no company in their field would have ever thought about 5 years ago. I guess they see their main core busniess going down hill?DigitalFreak - Monday, May 9, 2011 - link
"I guess they see their main core busniess going down hill? "Let's see.
They are effectively out of the chipset market.
Intel is forcing them out of the low end graphics market.
AMD is giving them a very hard time in the mid to high end graphics market.
All they really have going for them now is the mobile / tablet market, and Qualcomm and other chip makers are catching up to the Tegra 2.
happy medium - Monday, May 9, 2011 - link
yea but they still make more profit than AMD.They make tons of money with there professional graphics line.
Stuka87 - Monday, May 9, 2011 - link
Uhm, no they don't. Where did you read this?According to both companies first quarter 2011 results, AMD brought in a profit of $510 million, while nVidia brought in $137 million. Now obviously some of AMD's profit is from the CPU and Chipset side of things, but if broken down, I am sure the ATI side of things brings in more profit than either of those.
Not to mention Dell and Apple both just switched from nVidia to ATI in many of their machines. The new Dell Precisions, Apple MacBook Pros and iMacs are all ATI only.
nVidia is not in a good position currently period.
Khato - Monday, May 9, 2011 - link
Actually AMD's net income for Q1 was something around $56 million. The $510 million figure that everyone likes quoting as proof that AMD is doing well includes the proceeds from their reducing their ownership share in global foundries to about 14% I believe it is.joyossarian - Wednesday, May 11, 2011 - link
Khato is right. AMD's beautiful finance report is tricky. Without the income from GF, AMD did really poor in 1st season. Both CPU and GPU made much less money than last year. For GPU, it goes down to 19 million from 5x million.The net income of Intel is almost 20x to AMD's CPU dept. We could understand that Intel's product line is stronger and its market share is obviously larger. But AMD holds competitive GPU product line and more market share, Nvidia still beat it.
AMD is struggling. Unless its bulldozer rocks, AMD‘s way will be more narrow.
GeekBrains - Tuesday, May 10, 2011 - link
Do anyone see the idea similar to that of a Transmeta Crusoe or Efficeon?flyvog6 - Tuesday, May 17, 2011 - link
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aa0101bb - Wednesday, May 18, 2011 - link
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