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Intel Core i7-4870HQ

Intel 4870HQ

The Intel Core i7-4870HQ is a high-end quad-core processor for laptops launched in Q3 2014. 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 2.5 GHz but can dynamically increase clock rates with Turbo Boost up to 3.5 GHz (for 4 active cores), 3.6 GHz (for 2 active cores) and 3.7 GHz (for 1 active core). A noteworthy feature is the fast integrated graphics unit (GT3e) with eDRAM memory (128 MB, 77 mm², on-package, 102 GB/s).

Architecture

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, improving the performance per clock by 5 - 10 percent. Furthermore, new features like AVX2 and FMA should increase the performance in future applications.

Performance

Compared to the Core i7-4860HQ, the 4870HQ is clocked just 100 MHz higher and therefore only slightly faster. Overall, the performance is similar to the Ivy Bridge-based Core i7-3920XM. Even extremly demanding software or multitasking will be handled easily.

Graphics

The integrated Iris Pro Graphics 5200 GPU offers 40 Execution Units (EUs) clocked at 200 - 1200 MHz (Turbo clock not confirmed yet), making it significantly faster than the HD 4000 or HD 4600. The additional eDRAM memory further improves performance. As a result, the HD 5200 competes with dedicated mid-range graphics cards like the GeForce GT 740M.

Power Consumption

The i7-4870HQ is rated at a TDP of 47 W including the integrated graphics card, memory controller and VRMs.  Therefore, the CPU is best suited for laptops 15-inches or greater.

SeriesIntel Core i7
CodenameHaswell
Series: Core i7 Haswell
Intel Core i7-4940MX compare3.1 - 4 GHz4 / 88 MB
Intel Core i7-4930MX compare3 - 3.9 GHz4 / 88 MB
Intel Core i7-4980HQ compare2.8 - 4 GHz4 / 86 MB
Intel Core i7-4910MQ compare2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-4900MQ compare2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-4960HQ compare2.6 - 3.8 GHz4 / 86 MB
Intel Core i7-4810MQ compare2.8 - 3.8 GHz4 / 86 MB
» Intel Core i7-4870HQ2.5 - 3.7 GHz4 / 86 MB
Intel Core i7-4800MQ compare2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-4950HQ compare2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4860HQ compare2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4720HQ compare2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-4850HQ compare2.3 - 3.5 GHz4 / 86 MB
Intel Core i7-4710HQ compare2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4710MQ compare2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4770HQ compare2.2 - 3.4 GHz4 / 86 MB
Intel Core i7-4700HQ compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4700MQ compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4760HQ compare2.1 - 3.3 GHz4 / 86 MB
Intel Core i7-4722HQ compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4712HQ compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4712MQ compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4750HQ compare2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702HQ compare2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702MQ compare2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4610M compare3 - 3.7 GHz2 / 44 MB
Intel Core i7-4600M compare2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-4578U compare3 - 3.5 GHz2 / 44 MB
Intel Core i7-4558U compare2.8 - 3.3 GHz2 / 44 MB
Intel Core i7-4600U compare2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-4650U compare1.7 - 3.3 GHz2 / 44 MB
Intel Core i7-4510U compare2 - 3.1 GHz2 / 44 MB
Intel Core i7-4500U compare1.8 - 3 GHz2 / 44 MB
Intel Core i7-4550U compare1.5 - 3 GHz2 / 44 MB
Intel Core i7-4610Y compare1.7 - 2.9 GHz2 / 44 MB
Clock Rate2500 - 3700 MHz
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache6 MB
Number of Cores / Threads4 / 8
Power Consumption (TDP = Thermal Design Power)47 Watt
Transistor Count1700 Million
Manufacturing Technology22 nm
Die Size260 mm2
Max. Temperature100 °C
SocketFCBGA1364
FeaturesIris Pro Graphics 5200 (200 - 1200 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, vPro, AES-NI
GPUIntel Iris Pro Graphics 5200 (200 - 1200 MHz)
64 Bit64 Bit support
Architecturex86
Starting Price$434 U.S.
Announcement Date07/21/2014
Product Link (external)Intel Core i7 4870HQ

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* Smaller numbers mean a higher performance

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