Phenom II X4 945 (95W) vs Core 2 Quad Q9400

General info

Comparing Core 2 Quad Q9400 and Phenom II X4 945 (95W) processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2112	not rated
Place by popularity	not in top-100	not in top-100
Value for money	3.51	no data
Market segment	Desktop processor	Desktop processor
Architecture codename	Yorkfield (2007−2009)	Deneb (2009−2011)
Release date	August 2008 (15 years ago)	July 2009 (14 years ago)
Current price	$84	$33

Value for money

Performance per price, higher is better.

Technical specs

Core 2 Quad Q9400 and Phenom II X4 945 (95W) 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	no data
Boost clock speed	2.67 GHz	3 GHz
L1 cache	64K (per core)	128 KB (per core)
L2 cache	6 MB (shared)	512 KB (per core)
L3 cache	0 KB	6 MB (shared)
Chip lithography	45 nm	45 nm
Die size	2x 81 mm2	258 mm2
Maximum core temperature	71 °C	no data
Maximum case temperature (TCase)	71 °C	no data
Number of transistors	456 million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q9400 and Phenom II X4 945 (95W) 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	LGA775	AM3
Power consumption (TDP)	95 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400 and Phenom II X4 945 (95W). You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Quad Q9400 and Phenom II X4 945 (95W) technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9400 and Phenom II X4 945 (95W) are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400 and Phenom II X4 945 (95W). Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

DDR3

Advantages and disadvantages

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Should you still have questions on choice between Core 2 Quad Q9400 and Phenom II X4 945 (95W), ask them in Comments section, and we shall answer.

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