Intel Core i7-4770HQ
The Intel Core i7-4770HQ is a high-end quad-core processor for laptops. It is based on the Haswell architecture and manufactured in 22nm. Due to Hyperthreading, the four cores can handle up to eight threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 2.2 GHz but can dynamically increase clock rates with Turbo Boost up to 3.2 GHz (for 4 active cores), 3.3 GHz (for 2 active cores) and 3.4 GHz (for 1 active core). A special feature is the fast integrated graphics unit (GT3e) with additional eDRAM memory (128 MB, 77 mm², on-Package, 102 GB/s).
Haswell is the successor to the Ivy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm and offer an optimized branch prediction as well as additional execution ports. Furthermore, new features like AVX2 and FMA should increase the performance in future applications.
The performance of the Core i7-4770HQ is about 5 - 10 percent above a similarly clocked Ivy Bridge processor due to the architectural improvements. As a result, overall performance is similar to the Core i7-3820QM. Compared to other Haswell CPUs, the i7-4770HQ almost matches the slightly higher clocked i7-4710HQ (GT2, no eDRAM).
The integrated Iris Pro Graphics 5200 offers 40 Execution Units (EUs) clocked at 200 - 1200 MHz (with Turbo Boost), making it significantly faster than the HD 4000 or HD 4600. The additional eDRAM memory further improves the performance. As a result, the Iris Pro competes with dedicated mid-range graphics cards, e.g. the GeForce GT 740M.
The i7-4770HQ is rated at a TDP of 47 W including graphics card, memory controller and VRMs. Therefore, the CPU is only suited for laptops 15-inches or greater.
|Series||Intel Core i7|
|Clock Rate||2200 - 3400 MHz|
|Level 1 Cache||256 KB|
|Level 2 Cache||1024 KB|
|Level 3 Cache||6144 KB|
|Number of Cores / Threads||4 / 8|
|Max. Power Consumption (TDP = Thermal Design Power)||47 Watt|
|Transistor Count||1700 Million|
|Manufacturing Technology||22 nm|
|Die Size||260 mm2|
|Max. Temperature||100 °C|
|Features||Iris Pro Graphics 5200 (200 - 1200 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, vPro, AES-NI|
|GPU||Intel Iris Pro Graphics 5200 (200 - 1200 MHz)|
|64 Bit||64 Bit support|
|Hardware Virtualization||VT-x, VT-d|
|Starting Price||$434 U.S.|
|Product Link (external)||Intel Core i7 4770HQ|