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huberth
802.11n
Posts: 539
Registered: ‎07-08-2009
Location: USA
Views: 3,685
Message 21 of 24

Re: W530 or wait until the release of the W540?

Haswell also has a lower TDP (Thermal Design Power), which should result in longer battery life, less weight and quieter fan.
_______________________________________________________________________
W520 4270CTO i7-2820QM Quadro2000M 1920x1080 Display 16GB RAM 2x240GB Intel 510 SSDs (RAID 0) - BIOS 1.42 - PCMark7:4,568
Samsung Series 9 15-inch NP900X4C-A03US - PCMark7: 4674
Djembe
802.11n
Posts: 213
Registered: ‎06-10-2012
Location: USA
Views: 3,663
Message 22 of 24

Re: W530 or wait until the release of the W540?

Actually, Haswell has a HIGHER TDP (47w vs. 45w)
Thinkpad W530, i7-3720QM, 1920x1080 screen, 32GB RAM, dual SSDs (Samsung 830, Crucial M4 mSATA), Quadro K2000M, 9-cell battery, DVD burner, backlit keyboard, Bluetooth, Intel 6300 wireless card
huberth
802.11n
Posts: 539
Registered: ‎07-08-2009
Location: USA
Views: 3,652
Message 23 of 24

Re: W530 or wait until the release of the W540?

You are right, its only with the Ultrabooks where the TDP is lower.

 

http://www.anandtech.com/show/6927/some-haswell-tdps-revealed-15w-28w-ultrabooks

 

but

 

Intel claims Haswell will offer 50 percent more battery life in laptops

http://www.pcworld.com/article/2039697/intel-claims-haswell-will-offer-50-percent-more-battery-life-...

 

"And in idle or standby mode the chips will do even better, extending battery life by up to 20 times"

 

" It can dynamically adjust the power consumption in various parts of the chip to reduce the overall power draw."

 

"they’ll also offer double the graphics performance for laptops"

 

"Faster interconnects on the chip also shave off some power use, according to Intel, because data is transferred more quickly, which means the processor cores can spend less time working."

 

So perhaps Haswell is worth waiting for ....

_______________________________________________________________________
W520 4270CTO i7-2820QM Quadro2000M 1920x1080 Display 16GB RAM 2x240GB Intel 510 SSDs (RAID 0) - BIOS 1.42 - PCMark7:4,568
Samsung Series 9 15-inch NP900X4C-A03US - PCMark7: 4674
huberth
802.11n
Posts: 539
Registered: ‎07-08-2009
Location: USA
Views: 3,535
Message 24 of 24

Re: W530 or wait until the release of the W540?

This is how Haswell piches power:

 

http://news.cnet.com/8301-1001_3-57586165-92/haswell-chip-primer-how-intel-pinches-power/

 

  • On-chip voltage regulator: Fully Integrated Voltage Regulator. This is an industry first, Intel said. Combines multiple voltage regulators into one. This reduces the motherboard footprint, leading to smaller and sleeker devices. 
  • Power optimizer: Manages power consumption for the platform (entire device). This chip (inside Haswell) alone has as much compute power as an Intel 486 processor . 
  • Active power reduction: Aggressive use of lower-power circuits. 
  • Idle (standby) power reduction: Reduced by 20X over the previous generation. Architected new, ultra-low-power processor states. 
  • Power planes: Added new power planes that can shut down most of the CPU transistors in standby mode. 
  • Transistor leakage: Excessive leakage, which wastes power, is a big problem as transistors get smaller. On Haswell's Tri-Gate (3D) transistors, Intel was able to reduce the leakage of the transistors by a factor of two to three, without impacting performance. 
  • Lowered minimum operating voltage: Lowered the minimum functional operating voltage. This reduces the active power.

 

Worth the wait for the W540?

_______________________________________________________________________
W520 4270CTO i7-2820QM Quadro2000M 1920x1080 Display 16GB RAM 2x240GB Intel 510 SSDs (RAID 0) - BIOS 1.42 - PCMark7:4,568
Samsung Series 9 15-inch NP900X4C-A03US - PCMark7: 4674

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