Processor (CPU)
CPU Name
Intel® Core™ i7-4558U CPU @ 2.80GHz
Threading
1 CPU - 2 Core - 4 Threads
Frequency
3293.32 MHz (33 * 99.76 MHz) - Uncore: 3292.1 MHz
Multiplier
Current: 33 / Min: 8 / Max: 33
Architecture
Haswell ULT / Stepping: C0 / Technology: 22 nm
CPUID / Ext.
6.5.1 / 6.45
IA Extensions
MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX, AVX2, FMA3
Caches
L1D : 32 KB / L2 : 256 KB / L3 : 4096 KB
Caches Assoc.
L1D : 8-way / L2 : 8-way / L3 : 16-way
Microcode
Rev. 0x18   ► Intel SA-00233 Vulnerable ◄
TDP / Vcore
28 Watts / 1.033 Volts
Temperature
53 °C / 127 °F
Type
Retail (Stock Frequency : 2800 MHz)
Cores Frequencies
#00: 3293.3 MHz  #01: 3193.5 MHz 
Motherboard
Model
LENOVO INVALID
Socket
Socket 1168 BGA
North Bridge
Intel Haswell-ULT rev 09
South Bridge
Intel H8x/P8x rev C1
BIOS
LENOVO O00KT16AUS (05/27/2014)
Memory (RAM)
Total Size
8192 MB
Type
Single Channel (64 bit) DDR3-SDRAM
Frequency
798.1 MHz (DDR3-1596) - Ratio 1:6
Timings
11-11-11-28-1 (tCAS-tRCD-tRP-tRAS-tCR)
Slot #1 Module
Ramaxel Technology 8192 MB (DDR3-1600) - P/N: RMT3160ME68FAF1600
Graphic Card (GPU)
GPU #1 Type
Intel(R) Iris(TM) Graphics 5100 @ 200 MHz
GPU #1 Brand
Lenovo
GPU #2 Type
NVIDIA GeForce 840A
GPU #2 Brand
Lenovo
GPU #2 VRAM
2048 MB (Hynix)
Storage (HDD/SSD)
Model #1 Name
Seagate ST1000LM014-1EJ164-SSHD-8GB (FW: LVD6)
Model #1 Capacity
931.5 GiB (~1000 GB)
Model #1 Type
Fixed - Bus: SATA (11)
Display
Screen #1
Lenovo AIO PC (LEN2000)
Screen #1 Spec
24 inches (61 cm) / 1920 x 1080 pixels @ 60-60 Hz
Miscellaneous
Windows Version
Microsoft Windows 8.1 (6.3) Home 64-bit
CPU-Z Version
1.94.0 (64 bit)