Comparison of Intel Core i7-3920XM and Intel Core i7-3940XM

Attribute	Intel Core i7-3940XM ×	Intel Core i7-3920XM ×
General Information
Brand	Intel	Intel
Series	Intel Core i7 Extreme Edition	Intel Core i7 Extreme Edition
Model	Intel Core i7-3940XM	Intel Core i7-3920XM
CPU Cores and Base Frequency
CPU Cores	4	4
Frequency (GHz)	3	2.9
CPU Threads	8	8
Core architecture	normal	normal
Hyperthreading	+	+
Overclocking	+	+
Turbo (1 Core) (GHz)	3.9	3.8
Encryption
AES-NI	+	+
Hardware codec support
JPEG	Decode	Decode
h264	Decode / Encode	Decode / Encode
h265 / HEVC (8 bit)	No	No
h265 / HEVC (10 bit)	No	No
VP8	No	No
AV1	No	No
VC-1	Decode	Decode
VP9	No	No
AVC	Decode / Encode	Decode / Encode
Internal Graphics
GPU name	Intel HD Graphics 4000	Intel HD Graphics 4000
GPU frequency (GHz)	0.65	0.65
GPU (Turbo) (GHz)	1.35	1.3
Generation	7	7
DirectX Version	11	11
Execution units	16	16
Shader	128	128
Max. displays	3	3
GPU Release date (year)	2011	2011
Memory And PCIe
Memory type	DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM	DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM
Max. Memory (GB)	32	32
PCIe lanes	16	16
PCIe version	3.0	3.0
ECC	-	-
Memory channels	2	2
Technical details
Release date (year)	2012	2012
Technology (Nm)	22	22
Socket	PGA 988	PGA 988
Virtualization	vt-d vt-x vt-x ept	vt-d vt-x vt-x ept
L3-Cache (MB)	8	8
Architecture	Ivy Bridge E	Ivy Bridge E
Instruction set (ISA)	x86-64 (64 bit)	x86-64 (64 bit)
Thermal Management
Temp junction max (°C)	105	105
TDP (PL1) (W)	55	55
Benchmarks
iGPU - FP32 Performance (Single-precision GFLOPS)	346	333