Broadwell (microarchitecture)

Broadwell
General information
Launched	October 27, 2014
Discontinued	November 2018
Marketed by	Intel
Designed by	Intel
Common manufacturer	Intel;
CPUID code	0306D4h
Product code	80658 (mainstream desktop/mobile, Xeon E3); 80660 (Xeon E5); 80669 (Xeon E7); 80671 (enthusiast desktop); 80674 (Xeon D); 80682 (Xeon D, Hewitt Lake);
Performance
QPI speeds	6.4 GT/s to 9.6 GT/s
DMI speeds	4 GT/s
Cache
L1 cache	64 KB per core
L2 cache	256 KB per core
L3 cache	2-6 MB (shared)
L4 cache	128 MB of eDRAM (Iris Pro models only)
Architecture and classification
Technology node	14 nm (Tri-Gate)
Microarchitecture	Haswell
Instruction set	x86-16, IA-32, x86-64
Extensions	MMX, SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2, AVX, AVX2, TSX, FMA3; AES-NI, CLMUL, RDRAND, TXT; VT-x, VT-d;
Physical specifications
Cores	2–4 (mainstream); 6–10 (enthusiast); 4–24 (Xeon); ;
GPUs	HD 5300; HD 5500; HD 5700P; HD 6000; HD 6100; HD 6200; HD 6300P; HD Graphics;
Sockets	LGA 1150; BGA 1364; LGA 2011-v3;
Products, models, variants
Product code name	Rockwell;
Brand name	Core i3; Core i5; Core i7; Core M; Celeron; Pentium; Xeon; ;
History
Predecessors	Haswell (tock/architecture); Haswell Refresh (optimization);
Successor	Skylake (tock/architecture)
Support status
	Unsupported

Broadwell (previously Rockwell) is the fifth generation of the Intel Core processor. It is Intel's codename for the 14 nanometer die shrink of its Haswell microarchitecture. It is a "tick" in Intel's tick–tock principle as the next step in semiconductor fabrication.^[2]^[3]^[4] Like some of the previous tick-tock iterations, Broadwell did not completely replace the full range of CPUs from the previous microarchitecture (Haswell), as there were no low-end desktop CPUs based on Broadwell.^[5]

Some of the processors based on the Broadwell microarchitecture are marketed as "5th-generation Core" i3, i5 and i7 processors. This moniker is however not used for marketing of the Broadwell-based Celeron, Pentium or Xeon chips. This microarchitecture also introduced the Core M processor branding.

Broadwell's H and C variants are used in conjunction with Intel 9 Series chipsets (Z97, H97 and HM97),^[6] in addition to retaining backward compatibility with some of the Intel 8 Series chipsets.

^ Perillo, Ron (November 9, 2017). "Intel Broadwell-E CPUs Officially Discontinued". eTeknix. Retrieved July 29, 2020.
^ "22nm Details" (PDF) (presentation). Intel. Retrieved January 4, 2012.
^ Demerjian, Charlie (March 31, 2011). "After Intel's Haswell comes Broadwell". SemiAccurate. Retrieved January 4, 2012.
^ Broekhuijsen, Niels (May 22, 2014). "Intel Broadwell CPUs to Arrive Later This Year". Tom's Hardware. Archived from the original on July 27, 2014. Retrieved May 31, 2014.
^ "Lower-end desktop CPUs won't get Broadwell, will need to wait for Skylake". Ars Technica. September 5, 2014.
^ Reynolds, Sam (August 26, 2013). "Intel's 9-series chipsets will support Broadwell". vr-zone.com. Archived from the original on November 20, 2013. Retrieved November 20, 2013.

[1] Perillo, Ron (November 9, 2017). "Intel Broadwell-E CPUs Officially Discontinued". eTeknix. Retrieved July 29, 2020.

[2] "22nm Details" (PDF) (presentation). Intel. Retrieved January 4, 2012.

[3] Demerjian, Charlie (March 31, 2011). "After Intel's Haswell comes Broadwell". SemiAccurate. Retrieved January 4, 2012.

[4] Broekhuijsen, Niels (May 22, 2014). "Intel Broadwell CPUs to Arrive Later This Year". Tom's Hardware. Archived from the original on July 27, 2014. Retrieved May 31, 2014.

[5] "Lower-end desktop CPUs won't get Broadwell, will need to wait for Skylake". Ars Technica. September 5, 2014.

[6] Reynolds, Sam (August 26, 2013). "Intel's 9-series chipsets will support Broadwell". vr-zone.com. Archived from the original on November 20, 2013. Retrieved November 20, 2013.

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