Intel Core i7-4600U vs Intel Core i7-3940XM

Comparative analysis of Intel Core i7-4600U and Intel Core i7-3940XM processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Physics Score.

 

Differences

Reasons to consider the Intel Core i7-4600U

  • CPU is newer: launch date 11 month(s) later
  • 3.7x lower typical power consumption: 15 Watt vs 55 Watt
  • Around 83% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 30.46 vs 16.624
  • Around 83% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 10.252 vs 5.598
Specifications (specs)
Launch date 1 September 2013 vs 30 September 2012
Thermal Design Power (TDP) 15 Watt vs 55 Watt
Benchmarks
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 30.46 vs 16.624
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 10.252 vs 5.598

Reasons to consider the Intel Core i7-3940XM

  • Processor is unlocked, an unlocked multiplier allows for easier overclocking
  • 2 more cores, run more applications at once: 4 vs 2
  • 4 more threads: 8 vs 4
  • Around 18% higher clock speed: 3.90 GHz vs 3.30 GHz
  • Around 5% higher maximum core temperature: 105 °C vs 100°C
  • 2x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 2x more L2 cache, more data can be stored in the L2 cache for quick access later
  • 2x more L3 cache, more data can be stored in the L3 cache for quick access later
  • 2x more maximum memory size: 32 GB vs 16 GB
  • Around 15% better performance in PassMark - Single thread mark: 1911 vs 1657
  • 2.1x better performance in PassMark - CPU mark: 5840 vs 2722
  • Around 10% better performance in Geekbench 4 - Single Core: 741 vs 672
  • 2.1x better performance in Geekbench 4 - Multi-Core: 2890 vs 1363
  • 2.3x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 14.555 vs 6.333
  • 2.2x better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.613 vs 0.276
  • 2x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 2.454 vs 1.202
  • Around 2% better performance in GFXBench 4.0 - T-Rex (Frames): 2709 vs 2654
  • Around 2% better performance in GFXBench 4.0 - T-Rex (Fps): 2709 vs 2654
Specifications (specs)
Unlocked Unlocked vs Locked
Number of cores 4 vs 2
Number of threads 8 vs 4
Maximum frequency 3.90 GHz vs 3.30 GHz
Maximum core temperature 105 °C vs 100°C
L1 cache 256 KB vs 128 KB
L2 cache 1024 KB vs 512 KB
L3 cache 8192 KB vs 4 MB
Maximum memory size 32 GB vs 16 GB
Benchmarks
PassMark - Single thread mark 1911 vs 1657
PassMark - CPU mark 5840 vs 2722
Geekbench 4 - Single Core 741 vs 672
Geekbench 4 - Multi-Core 2890 vs 1363
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 14.555 vs 6.333
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.613 vs 0.276
CompuBench 1.5 Desktop - Video Composition (Frames/s) 2.454 vs 1.202
GFXBench 4.0 - T-Rex (Frames) 2709 vs 2654
GFXBench 4.0 - T-Rex (Fps) 2709 vs 2654

Compare benchmarks

CPU 1: Intel Core i7-4600U
CPU 2: Intel Core i7-3940XM

PassMark - Single thread mark
CPU 1
CPU 2
1657
1911
PassMark - CPU mark
CPU 1
CPU 2
2722
5840
Geekbench 4 - Single Core
CPU 1
CPU 2
672
741
Geekbench 4 - Multi-Core
CPU 1
CPU 2
1363
2890
CompuBench 1.5 Desktop - Face Detection (mPixels/s)
CPU 1
CPU 2
6.333
14.555
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)
CPU 1
CPU 2
30.46
16.624
CompuBench 1.5 Desktop - T-Rex (Frames/s)
CPU 1
CPU 2
0.276
0.613
CompuBench 1.5 Desktop - Video Composition (Frames/s)
CPU 1
CPU 2
1.202
2.454
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)
CPU 1
CPU 2
10.252
5.598
GFXBench 4.0 - T-Rex (Frames)
CPU 1
CPU 2
2654
2709
GFXBench 4.0 - T-Rex (Fps)
CPU 1
CPU 2
2654
2709
Name Intel Core i7-4600U Intel Core i7-3940XM
PassMark - Single thread mark 1657 1911
PassMark - CPU mark 2722 5840
Geekbench 4 - Single Core 672 741
Geekbench 4 - Multi-Core 1363 2890
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 6.333 14.555
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 30.46 16.624
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.276 0.613
CompuBench 1.5 Desktop - Video Composition (Frames/s) 1.202 2.454
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 10.252 5.598
GFXBench 4.0 - Car Chase Offscreen (Frames) 815
GFXBench 4.0 - Manhattan (Frames) 1667
GFXBench 4.0 - T-Rex (Frames) 2654 2709
GFXBench 4.0 - Car Chase Offscreen (Fps) 815
GFXBench 4.0 - Manhattan (Fps) 1667
GFXBench 4.0 - T-Rex (Fps) 2654 2709
3DMark Fire Strike - Physics Score 0

Compare specifications (specs)

Intel Core i7-4600U Intel Core i7-3940XM

Essentials

Architecture codename Haswell Ivy Bridge
Launch date 1 September 2013 30 September 2012
Launch price (MSRP) $398 $1,096
Place in performance rating 2131 2137
Processor Number i7-4600U i7-3940XM
Series 4th Generation Intel® Core™ i7 Processors Intel® Core™ X-series Processors
Status Launched Launched
Vertical segment Mobile Mobile
Price now $539
Value for money (0-100) 5.08

Performance

64 bit support
Base frequency 2.10 GHz 3.00 GHz
Bus Speed 5 GT/s DMI2 5 GT/s DMI
Die size 181 mm 160 mm
L1 cache 128 KB 256 KB
L2 cache 512 KB 1024 KB
L3 cache 4 MB 8192 KB
Manufacturing process technology 22 nm 22 nm
Maximum core temperature 100°C 105 °C
Maximum frequency 3.30 GHz 3.90 GHz
Number of cores 2 4
Number of threads 4 8
Transistor count 1300 Million 1400 Million
Unlocked

Memory

Max memory channels 2 2
Maximum memory bandwidth 25.6 GB/s 25.6 GB/s
Maximum memory size 16 GB 32 GB
Supported memory types DDR3L 1333/1600, LPDDR3 1333/1600 DDR3/L/-RS 1333/1600

Graphics

Device ID 0xA16
Graphics base frequency 200 MHz 650 MHz
Graphics max dynamic frequency 1.10 GHz 1.35 GHz
Graphics max frequency 1.1 GHz 1.35 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory 2 GB
Processor graphics Intel® HD Graphics 4400 Intel® HD Graphics 4000

Graphics interfaces

DisplayPort
eDP
HDMI
Number of displays supported 3 3
VGA
Wireless Display (WiDi) support
CRT
SDVO

Graphics image quality

Max resolution over DisplayPort 3200x2000@60Hz
Max resolution over HDMI 1.4 3200x2000@60Hz
Max resolution over VGA N / A

Graphics API support

DirectX 11.2/12
OpenGL 4.3

Compatibility

Low Halogen Options Available
Max number of CPUs in a configuration 1 1
Package Size 40mm x 24mm x 1.5mm 37.5 x 37.5mm (rPGA988B)
Sockets supported FCBGA1168 FCPGA988
Thermal Design Power (TDP) 15 Watt 55 Watt

Peripherals

Integrated IDE
Integrated LAN
Max number of PCIe lanes 12 16
Max number of SATA 6 Gb/s Ports 4
Number of USB ports 4
PCI Express revision 2.0 3.0
PCI support
PCIe configurations 4x1, 2x4 1x16, 2x8, 1x8 2x4
Total number of SATA ports 4
UART
USB revision 3.0

Security & Reliability

Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)

Advanced Technologies

Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
General-Purpose Input/Output (GPIO)
HD Audio
Idle States
Instruction set extensions Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 Intel® AVX
Intel 64
Intel® Active Management technology (AMT)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® ME Firmware Version 9.5
Intel® Rapid Storage technology (RST)
Intel® Smart Response technology
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Smart Connect
Thermal Monitoring
4G WiMAX Wireless
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® My WiFi technology

Virtualization

AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)