Specifications of mobile Haswell CPUs
Last Friday VR-Zone published details of future "Haswell" desktop microprocessors, coming in the Q2 2013. One interesting observation about them is that individual models in Haswell and Ivy Bridge lineups have identical features, such as clock speed, sizes of caches and support for advanced technologies, and differ only by the type of integrated graphics, and by higher TDP on some Haswell SKUs. VR-Zone now posted details of mobile "Haswell" quad-core microprocessors, dubbed as Core i7-4800MQ, i7-4900MQ and i7-4930MX. Like desktop parts, three mobile Core i7s have basic CPU features, exactly matching those of Core i7-3740QM, i7-3840QM and i7-3940XM Ivy Bridge chips. As a result, all performance improvements in future Haswell parts over current Ivy Bridge models will be only due to better microarchitecture and GPU in Haswell products.
First Haswell mobile processors will have 4 CPU cores with Hyper-Threading support, 8 MB L3 cache on the i7-4900 series, and 6 MB cache on the i7-4800 series. The i7 processors will be clocked from 2.7 GHz to 3 GHz, reaching as high as 3.7 - 3.9 GHz when Turbo Boost feature is active. The i7-4930MX is supposed to be unlocked, and could be overclocked to achieve higher performance. All processors will support vPro technology, VT-d (I/O virtualization) and Trusted Execution. The CPUs will integrate HD 4600 graphics with 400 MHz base frequency. The graphics unit will have Turbo technology enabled, that will increase GPU frequency up to 1.35 GHz on the unlocked i7-4930MX, and up to 1.3 GHz on the i7-4800MQ and i7-4900MQ parts. The unlocked core i7 will have 57 Watt TDP, and the "MQ" CPUs will have 47 Watt TDP, that is 2 Watts higher than TDP of Ivy Bridge microprocessors. The Core i7s will be packaged in 946-pin package, that will require socket G3, and they will not be compatible with current generation of socket G2 motherboards.
As was mentioned above, Haswell processors will have higher TDP than the current generation of mobile CPUs. That doesn't mean that Haswell will have higher power requirements than Ivy Bridge. For once, Haswell processors integrate voltage regulator (VR) on a chip, which increases their TDP. This also enables them to use single on-board VR for CPU/GPU, rather than 5 different VRs. Intel claims that their integrated VR is more efficient than on-board VRs, which leads to lower overall system power consumption. Additionally, Intel reduced TDP of a Lynx Point chipset by about 25%, which lowers system TDP even further.
Mobile Haswell CPUs will be available in April 2013. Later in the year Intel plans to launch "M" mobile series of dual-core processors. Also, in the third quarter Intel will release Haswell "H" series of quad-core BGA parts with GT3 graphics, and Haswell "U" series chips.
Specifications of Haswell mobile quad-core CPUs are provided below (Haswell SKUs are in bold):
Related News (newer articles):
Feb 14, 2013: Intel Core i7-4800MQ and i7-4900MQ are available for pre-order
Feb 05, 2013: Intel to launch Haswell ULV CPUs at Computex show
Dec 29, 2012: Intel Haswell CPUs delayed until June 2013
Related News (older articles):
Aug 31, 2012: Basic features of Haswell Core, Pentium and Celeron CPUs
Aug 21, 2012: Package options of desktop and mobile Haswell processors
Jul 10, 2012: Launch schedule of Intel Haswell processors