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Intel Core i7-4558U

Intel 4558U

The Intel Core i7-4558U is a LV (low voltage) dual-core processor for large ultrabooks launched in Q2 2013. It is based on the Haswell architecture and is manufactured in 22nm. Due to Hyper-Threading, the two cores can handle up to four threads in parallel, leading to better utilization of the CPU. Each core offers a base speed of 2.8 GHz, but can dynamically increase clock rates with Turbo Boost up to 3.3 GHz for 1 active core or 3.2 GHz for 2 active cores.

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 almost 10 percent. Furthermore, new features like AVX2 and FMA should increase the performance in future applications.

The performance of the Core i7-4558U is slightly above the older and somewhat higher clocked Core i7-3520M. However, when using new instruction sets such as AVX2 the performance can be significantly better. Thus, the CPU has sufficient power for office and multimedia purposes as well as more demanding applications.

The integrated Iris Graphics 5100 offers 40 Execution Units (EUs) clocked at 200 - 1200 MHz with Turbo Boost, making it significantly faster than the HD Graphics 4000. As a result, the Iris Graphics competes with dedicated lower mid-range graphics cards.

The i7-4558U is rated at a TDP of 28 W including the graphics card, memory controller, VRMs and the integrated chipset. Therefore, the CPU is suited for larger ultrabooks 14-inches or greater.

SeriesIntel Core i7
CodenameHaswell
Series: Core i7 Haswell
Intel Core i7-4940MX (compare)3100 - 4000 MHz4 / 88 MB
Intel Core i7-4930MX (compare)3000 - 3900 MHz4 / 88 MB
Intel Core i7-4980HQ (compare)2800 - 4000 MHz4 / 86 MB
Intel Core i7-4910MQ (compare)2900 - 3900 MHz4 / 88 MB
Intel Core i7-4900MQ (compare)2800 - 3800 MHz4 / 88 MB
Intel Core i7-4960HQ (compare)2600 - 3800 MHz4 / 86 MB
Intel Core i7-4810MQ (compare)2800 - 3800 MHz4 / 86 MB
Intel Core i7-4870HQ (compare)2500 - 3700 MHz4 / 86 MB
Intel Core i7-4800MQ (compare)2700 - 3700 MHz4 / 86 MB
Intel Core i7-4950HQ (compare)2400 - 3600 MHz4 / 86 MB
Intel Core i7-4860HQ (compare)2400 - 3600 MHz4 / 86 MB
Intel Core i7-4720HQ (compare)2600 - 3600 MHz4 / 86 MB
Intel Core i7-4850HQ (compare)2300 - 3500 MHz4 / 86 MB
Intel Core i7-4710HQ (compare)2500 - 3500 MHz4 / 86 MB
Intel Core i7-4710MQ (compare)2500 - 3500 MHz4 / 86 MB
Intel Core i7-4770HQ (compare)2200 - 3400 MHz4 / 86 MB
Intel Core i7-4700HQ (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-4700MQ (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-4760HQ (compare)2100 - 3300 MHz4 / 86 MB
Intel Core i7-4722HQ (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-4712HQ (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-4712MQ (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-4750HQ (compare)2000 - 3200 MHz4 / 86 MB
Intel Core i7-4702HQ (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-4702MQ (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-4610M (compare)3000 - 3700 MHz2 / 44 MB
Intel Core i7-4600M (compare)2900 - 3600 MHz2 / 44 MB
Intel Core i7-4578U (compare)3000 - 3500 MHz2 / 44 MB
» Intel Core i7-4558U2800 - 3300 MHz2 / 44 MB
Intel Core i7-4600U (compare)2100 - 3300 MHz2 / 44 MB
Intel Core i7-4650U (compare)1700 - 3300 MHz2 / 44 MB
Intel Core i7-4510U (compare)2000 - 3100 MHz2 / 44 MB
Intel Core i7-4500U (compare)1800 - 3000 MHz2 / 44 MB
Intel Core i7-4550U (compare)1500 - 3000 MHz2 / 44 MB
Intel Core i7-4610Y (compare)1700 - 2900 MHz2 / 44 MB
Clock Rate2800 - 3300 MHz
Level 1 Cache128 KB
Level 2 Cache512 KB
Level 3 Cache4 MB
Number of Cores / Threads2 / 4
Max. Power Consumption (TDP = Thermal Design Power)28 Watt
Transistor Count1300 Million
Manufacturing Technology22 nm
Die Size181 mm2
Max. Temperature100 °C
SocketFCBGA
FeaturesIris Graphics 5100 (200 - 1200 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
GPUIntel Iris Graphics 5100 (200 - 1200 MHz)
64 Bit64 Bit support
Starting Price$454 U.S.
Announcement Date06/04/2013
Product Link (external)Intel Core i7 4558U

Benchmarks

Cinebench R10 - Rendering Single 32Bit
4793 Points (52%)
Cinebench R10 - Rendering Multiple CPUs 32Bit
10305 Points (21%)
Super Pi mod 1.5 XS 1M *
11.2 Seconds (2%)
SiSoft Sandra Dhrystone (MIPS)
72000 MIPS (34%)
SiSoft Sandra Whetstone (MFLOPS)
41240 MFLOPS (32%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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