Intel Core X-series Processors
Code Name Products formerly Haswell
Vertical Segment Mobile
Processor Number i7-4940MX
Lithography 22 nm
CPU Specifications
Total Cores 4
Total Threads 8
Max Turbo Frequency 4.00 GHz
Intel Turbo Boost Technology 2.0 Frequency‡ 4.00 GHz
Processor Base Frequency 3.10 GHz
Cache 8 MB Intel Smart Cache
Bus Speed 5 GT/s
TDP 57 W
Memory Specifications
Max Memory Size (dependent on memory type) 32 GB
Memory Types DDR3L 1333/1600
Max # of Memory Channels 2
Max Memory Bandwidth 25.6 GB/s
ECC Memory Supported ‡ No
Processor Graphics
Processor Graphics ‡ Intel HD Graphics 4600
Graphics Base Frequency 400 MHz
Graphics Max Dynamic Frequency 1.35 GHz
Graphics Video Max Memory 1.7 GB
Graphics Output eDP/DP/HDMI/VGA
Intel Quick Sync Video Yes
Intel InTru 3D Technology Yes
Intel Flexible Display Interface (Intel FDI) Yes
Intel Clear Video HD Technology Yes
# of Displays Supported ‡ 3
Expansion Options
PCI Express Revision 3
PCI Express Configurations ‡ 1x16 | 2x8 | 1x8 2x4
Max # of PCI Express Lanes 16
Package Specifications
Max CPU Configuration 1
TJUNCTION 100°C
Package Size 37.5mm x 37.5mm x 4.7mm
Advanced Technologies
Intel Turbo Boost Technology ‡ 2
Intel Hyper-Threading Technology ‡ Ye
Intel Transactional Synchronization Extensions Yes
Intel 64 ‡ Yes
Instruction Set 64-bit
Instruction Set Extensions Intel SSE4.1 | Intel SSE4.2 | Intel AVX2
Idle States Yes
Enhanced Intel SpeedStep Technology Yes
Thermal Monitoring Technologies Yes
Intel Identity Protection Technology ‡ Yes
Security & Reliability
Intel vPro Eligibility ‡ Intel vPro Platform
Intel AES New Instructions Yes
Secure Key Yes
Intel Trusted Execution Technology ‡ Yes
Execute Disable Bit ‡ Yes
Anti-Theft Technology Yes
Intel Virtualization Technology (VT-x) ‡ Yes
Intel Virtualization Technology for Directed I/O (VT-d) ‡ Yes
Intel VT-x with Extended Page Tables (EPT) ‡ Yes