Xeon W3505 vs Core 2 Quad Q9400

Place in the ranking	2243	2673
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Power efficiency	1.33	0.53
Architecture codename	Yorkfield (2007−2009)	Bloomfield (2008−2010)
Release date	August 2008 (16 years ago)	30 March 2009 (15 years ago)

Detailed specifications

Core 2 Quad Q9400 and Xeon W3505 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)	2 (Dual-core)
Threads	4	2
Base clock speed	2.66 GHz	2.53 GHz
Boost clock speed	2.67 GHz	0.53 GHz
Bus rate	1333 MHz	no data
L1 cache	64K (per core)	64 KB (per core)
L2 cache	6 MB (shared)	256 KB (per core)
L3 cache	0 KB	4 MB (shared)
Chip lithography	45 nm	45 nm
Die size	2x 81 mm²	263 mm²
Maximum case temperature (TCase)	71 °C	no data
Number of transistors	456 million	731 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.3625V	0.8V-1.225V

Compatibility

Information on Core 2 Quad Q9400 and Xeon W3505 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	1366
Power consumption (TDP)	95 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400 and Xeon W3505. 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	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	-
Demand Based Switching	-	+
PAE	no data	36 Bit
FSB parity	-	no data

Security technologies

Core 2 Quad Q9400 and Xeon W3505 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 Q9400 and Xeon W3505 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 Q9400 and Xeon W3505. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3
Maximum memory size	no data	24 GB
Max memory channels	no data	3
Maximum memory bandwidth	no data	25.6 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q9400 and Xeon W3505.

PCIe version

no data

2.0

Synthetic benchmark performance

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

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 Q9400 1.34
+83.6%

Xeon W3505 0.73

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Core 2 Quad Q9400 2133
+83.7%

Xeon W3505 1161