Pentium III 1400S vs Core 2 Quad Q6600

Place in the ranking	2388	3360
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Series	Core 2 Quad (Desktop)	no data
Power efficiency	1.04	0.35
Architecture codename	Kentsfield (2007)	Tualatin (2000−2002)
Release date	no data	January 2002 (22 years ago)

Detailed specifications

Core 2 Quad (Desktop) Q6600 and Pentium III 1400S 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)	1 (Single-Core)
Threads	4	1
Boost clock speed	2.4 GHz	1.4 GHz
Bus rate	1066 MHz	no data
L1 cache	64K (per core)	8 KB
L2 cache	8 MB (shared)	512 KB
L3 cache	0 KB	0 KB
Chip lithography	65 nm	130 nm
Die size	2x 143 mm²	80 mm²
Maximum case temperature (TCase)	71 °C	69 °C
Number of transistors	582 million	44 million
64 bit support	+	-
Windows 11 compatibility	-	-

Compatibility

Information on Core 2 Quad (Desktop) Q6600 and Pentium III 1400S 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	775	370
Power consumption (TDP)	105 Watt	32 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad (Desktop) Q6600 and Pentium III 1400S. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad (Desktop) Q6600 and Pentium III 1400S. 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.

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 Q6600 1.15
+858%

Pentium III 1400S 0.12

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 Q6600 1823
+840%

Pentium III 1400S 194

Gaming performance

Pros & cons summary

Performance score	1.15	0.12
Physical cores	4	1
Threads	4	1
Chip lithography	65 nm	130 nm
Power consumption (TDP)	105 Watt	32 Watt

Core 2 Quad Q6600 has a 858.3% higher aggregate performance score, 300% more physical cores and 300% more threads, and a 100% more advanced lithography process.

Pentium III 1400S, on the other hand, has 228.1% lower power consumption.

The Core 2 Quad Q6600 is our recommended choice as it beats the Pentium III 1400S in performance tests.

Should you still have questions on choice between Core 2 Quad Q6600 and Pentium III 1400S, ask them in Comments section, and we shall answer.