Product comparison · 2 cpus

HP Intel Core 2 Quad Q9450 vs HP Intel Core 2 Quad Q9550S

30specifications compared
5differ
25identical
0known for one product only

Key differences

The HP Intel Core 2 Quad Q9550S has 0.17 GHz more processor base frequency than the HP Intel Core 2 Quad Q9450 (2.83 GHz vs 2.66 GHz). The HP Intel Core 2 Quad Q9450 has 30 W more thermal Design Power (TDP) than the HP Intel Core 2 Quad Q9550S (95 W vs 65 W). The HP Intel Core 2 Quad Q9550S has 4.9°C more tcase than the HP Intel Core 2 Quad Q9450 (76.3 °C vs 71.4 °C). Processor model: Q9450 on the HP Intel Core 2 Quad Q9450, Q9550S on the HP Intel Core 2 Quad Q9550S. Stepping: C1 on the HP Intel Core 2 Quad Q9450, E0 on the HP Intel Core 2 Quad Q9550S.

Processor model
- Intel Core 2 Quad Q9450:Q9450
- Intel Core 2 Quad Q9550S:Q9550S
Processor base frequency
- Intel Core 2 Quad Q9450:2.66 GHz
- Intel Core 2 Quad Q9550S:2.83 GHz
Thermal Design Power (TDP)
- Intel Core 2 Quad Q9450:95 W
- Intel Core 2 Quad Q9550S:65 W
Stepping
- Intel Core 2 Quad Q9450:C1
- Intel Core 2 Quad Q9550S:E0
Tcase
- Intel Core 2 Quad Q9450:71.4 °C
- Intel Core 2 Quad Q9550S:76.3 °C

Side by side

Differences highlightedShow differences only

Comparison of Intel Core 2 Quad Q9450, Intel Core 2 Quad Q9550S
30 specifications	A HP Intel Core 2 Quad Q9450 View product	B HP Intel Core 2 Quad Q9550S View product
Processor4 differ
Processor family	Intel® Core™2 Quad	Intel® Core™2 Quad
Processor modelDiffers	Q9450	Q9550S
Processor base frequencyDiffers	2.66 GHz	2.83 GHz
Processor cores	4	4
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Processor lithography	45 nm	45 nm
Package type	Tray	Tray
Processor operating modes	64-bit	64-bit
Processor cache	12 MB	12 MB
Processor cache type	L2	L2
Processor front side bus	1333 MHz	1333 MHz
Thermal Design Power (TDP)Differs	95 W	65 W
FSB Parity	Yes	Yes
SteppingDiffers	C1	E0
Featuresidentical
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Thermal Monitoring Technologies	Yes	Yes
Number of Processing Die Transistors	820 M	820 M
Processing Die size	214 mm²	214 mm²
Embedded options available	No	No
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution Technology	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® Turbo Boost Technology	No	No
Intel Demand Based Switching	No	No
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	Yes
Operational conditions1 differ
TcaseDiffers	71.4 °C	76.3 °C
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x	VT-d, VT-x

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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