Difference between Intel Broadwell and Haswell processors

Broadwell is the code name of new Intel processors. Broadwell is the second processor in its Haswell microarchitecture. Previously Haswell processor are built on 22nm micro architecture and the new predecessor of Haswell. Broadwell is build on 14nm micro architecture. It is the first 14nm micro architecture processor build for the latest computers (LGA1150 socket), laptops (PGA socket), ultrabook (less than 15 W TDP class, SoC), tablets (less than 10 W TDP class, SoC) and latest upcoming devices.

Intel demos Haswell vs Broadwell at IDF 2013, shows lower power consumption, higher performance

Earlier in September Intel demonstrated 14nm Broadwell ULT (Y-series) silicon, Intel's faster, smaller, more efficient Broadwell chip is normalized for performance against 22nm Haswell ULT (Y-series) silicon running a multi-threaded Cinebench test. Intel was monitoring SoC power during the benchmark and demonstrated a ~30% reduction in power, at the same performance level.

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Difference between Intel Broadwell and Haswell processors - Techzost blog

At IDF 2013, CEO Brian Krzanich showed laptop running on a 14nm Broadwell (Intel SoC).

Intel CEO Brian Krzanich had planned to start the production of Broadwell processors in Q3 2013, But recently they had told that production of Broadwell processors is postponed to Q4 2013

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Intel Broadwell Processor features vs Haswell :

Haswell (2013)Broadwell (2014)
Socket(s)LGA 1150,
rPGA 947,
LGA 1150
Chipset TDP6.8 W4.9 W
Process NameP1270P1272
GPUHD Graphics 4200, 4400,
4600, 5000, Iris 5100
or Iris Pro 5200
200 MHz to 1.3 GHz
HD Graphics 4200, 4400,
4600, 5000, Iris 5100
or Iris Pro 5200
200 MHz to 1.3 GHz
L1 cache64 KB per core
L2 cache256 KB per core
L3 cache2 MB to 8 MB shared 2 MB to 8 MB shared
Power req.
Desktop version47 W and 57 W TDP35 W and 55 W TDP
UltraBook3.5 W and 15 W TDPless than 15 W TDP
Tablets10 W TDP classless than 10 W TDP

Expected Intel Broadwell processors variants:

Broadwell is expected to launch in three major forms
Broadwell-D: desktop version (LGA1150 socket)
BGA version:
Broadwell-H: 35 W and 55 W TDP classes, for "all-in-one" systems, Mini-ITX form factor motherboards, and other small footprint formats
Broadwell-U: less than 15 W TDP class (SoC), for Intel's ultrabook and NUC platforms
Broadwell-Y: less than 10 W TDP class (SoC), for tablets and certain ultrabook-class implementations
Broadwell-M: mobile/laptop version (PGA socket).

Source :
Intel delays Broadwell release date until 2014 because of defect density issues
Intel's new Broadwell (microarchitectureprocessors); From Wikipedia, the free encyclopedia.
Haswell (microarchitecture); From Wikipedia, the free encyclopedia.
Intel Demos 14nm Broadwell: Up to 30% Lower Power than Haswell
Intel reveal new Broadwell CPU technology, due out next year.
Intel Haswell and Broadwell Microprocessor Variants Detailed – Broadwell Compatible with Socket LGA1150
Intel Shows 14nm Broadwell Consuming 30% Less Power Than 22nm Haswell
Intel reveals new Broadwell cpu tech,due out next year
Intel Delays 14 nm Broadwell, Schedules Haswell Refresh for 2014
Intel Not Releasing 14nm Broadwell CPUs Next Year, Haswell and Haswell-E Will Dominate 2014
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