Core 2 Quad Q9505 vs Core 2 Quad Q8400

General info

Comparing Core 2 Quad Q8400 and Core 2 Quad Q9505 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2123	2100
Place by popularity	not in top-100	not in top-100
Value for money	2.73	2.69
Market segment	Desktop processor	Desktop processor
Architecture codename	Yorkfield (2007−2009)	no data
Release date	April 2009 (15 years ago)	1 July 2009 (14 years ago)
Current price	$58	$37

Value for money

Performance per price, higher is better.

Core 2 Quad Q8400 has 1% better value for money than Core 2 Quad Q9505.

Technical specs

Core 2 Quad Q8400 and Core 2 Quad Q9505 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)	no data
Threads	4	no data
Base clock speed	2.66 GHz	2.83 GHz
Boost clock speed	2.67 GHz	no data
L1 cache	64K (per core)	no data
L2 cache	4 MB (shared)	no data
L3 cache	0 KB	6 MB L2 Cache
Chip lithography	45 nm	45 nm
Die size	2x 81 mm2	no data
Maximum core temperature	71 °C	71 °C
Maximum case temperature (TCase)	71 °C	no data
Number of transistors	456 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	0.85V-1.3625V

Compatibility

Information on Core 2 Quad Q8400 and Core 2 Quad Q9505 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	no data
Socket	FCLGA775,LGA775	FCLGA775,LGA775
Power consumption (TDP)	95 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q8400 and Core 2 Quad Q9505. You'll probably need this information if you require some particular technology.

AES-NI	-	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	-	-
FSB parity	-	no data
Status	Discontinued	Discontinued

Security technologies

Core 2 Quad Q8400 and Core 2 Quad Q9505 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 2 Quad Q9505 are enumerated here.

VT-d	no data	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400 and Core 2 Quad Q9505. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Core 2 Quad Q9505 outperforms Core 2 Quad Q8400 by 3% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score

1.34

1.38

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Should you still have questions on choice between Core 2 Quad Q8400 and Core 2 Quad Q9505, ask them in Comments section, and we shall answer.

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