Core 2 Quad Q9400s vs Core i7-4550U

Primary details

Comparing Core i7-4550U and Core 2 Quad Q9400s processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2187	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i7	no data
Power efficiency	9.02	no data
Architecture codename	Haswell-ULT (2013)	Yorkfield (2007−2009)
Release date	4 June 2013 (11 years ago)	18 January 2009 (15 years ago)

Detailed specifications

Core i7-4550U and Core 2 Quad Q9400s basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	4 (Quad-Core)
Threads	4	4
Base clock speed	1.5 GHz	2.66 GHz
Boost clock speed	3 GHz	0.67 GHz
Bus rate	5 GT/s	1333 MHz
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	6 MB (shared)
L3 cache	4 MB (shared)	0 KB
Chip lithography	22 nm	45 nm
Die size	118 mm2	2x 82 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	76 °C
Number of transistors	1,300 million	456 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	0.85V-1.3625V

Compatibility

Information on Core i7-4550U and Core 2 Quad Q9400s compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCBGA1168	LGA775
Power consumption (TDP)	15 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4550U and Core 2 Quad Q9400s. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	no data	-
GPIO	+	no data
Smart Connect	+	no data
FDI	+	no data
AMT	9.5	no data
FSB parity	no data	-
HD Audio	+	no data
RST	+	no data

Security technologies

Core i7-4550U and Core 2 Quad Q9400s technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	no data
Identity Protection	+	-
Anti-Theft	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4550U and Core 2 Quad Q9400s are enumerated here.

AMD-V	+	-
VT-d	+	+
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4550U and Core 2 Quad Q9400s. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR1, DDR2, DDR3
Maximum memory size	16 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 5000	On certain motherboards (Chipset feature)
Max video memory	2 GB	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.1 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-4550U and Core 2 Quad Q9400s integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
VGA	+	no data

Graphics image quality

Maximum display resolutions supported by Core i7-4550U and Core 2 Quad Q9400s integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	3200x2000@60Hz	no data
Max resolution over DisplayPort	3200x2000@60Hz	no data
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Core i7-4550U and Core 2 Quad Q9400s integrated GPUs, sometimes API versions are included.

DirectX	11.2/12	no data
OpenGL	4.3	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-4550U and Core 2 Quad Q9400s.

PCIe version	2.0	2.0
PCI Express lanes	12	no data
PCI support	-	no data
USB revision	3.0	no data
Total number of SATA ports	4	no data
Max number of SATA 6 Gb/s Ports	4	no data
Integrated IDE	-	no data
Number of USB ports	4	no data
Integrated LAN	-	no data
UART	+	no data

Pros & cons summary

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Recency	4 June 2013	18 January 2009
Physical cores	2	4
Chip lithography	22 nm	45 nm
Power consumption (TDP)	15 Watt	65 Watt

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Should you still have questions on choice between Core i7-4550U and Core 2 Quad Q9400s, ask them in Comments section, and we shall answer.

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