Core i5-750s vs Core 2 Quad Q8400

Primary details

Comparing Core 2 Quad Q8400 and Core i5-750s processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2263	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	1.30	no data
Architecture codename	Yorkfield (2007−2009)	Lynnfield (2009−2010)
Release date	19 April 2009 (15 years ago)	7 January 2010 (14 years ago)

Detailed specifications

Core 2 Quad Q8400 and Core i5-750s 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	4 (Quad-Core)	4 (Quad-Core)
Threads	4	4
Base clock speed	2.66 GHz	2.4 GHz
Boost clock speed	0.67 GHz	3.2 GHz
Bus rate	1333 MHz	2.5 GT/s
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	4 MB (shared)	256 KB (per core)
L3 cache	0 KB	8 MB (shared)
Chip lithography	45 nm	45 nm
Die size	2x 82 mm2	296 mm2
Maximum core temperature	no data	77 °C
Maximum case temperature (TCase)	71 °C	no data
Number of transistors	456 million	774 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q8400 and Core i5-750s 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	FCLGA775,LGA775	FCLGA1156,LGA1156
Power consumption (TDP)	95 Watt	82 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q8400 and Core i5-750s. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.2
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	1.0
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	-
Demand Based Switching	-	-
PAE	no data	36 Bit
FSB parity	-	no data

Security technologies

Core 2 Quad Q8400 and Core i5-750s technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q8400 and Core i5-750s are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400 and Core i5-750s. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3
Maximum memory size	no data	16 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	21 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q8400 and Core i5-750s.

PCIe version	2.0	2.0
PCI Express lanes	no data	16

Pros & cons summary

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Recency	19 April 2009	7 January 2010
Power consumption (TDP)	95 Watt	82 Watt

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Should you still have questions on choice between Core 2 Quad Q8400 and Core i5-750s, ask them in Comments section, and we shall answer.

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