Core 2 Duo T6600 vs Core 2 Duo T9900

Place in performance ranking	2511	2730
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Duo	Intel Core 2 Duo
Architecture codename	Penryn (2008−2011)	Penryn (2008−2011)
Release date	1 April 2009 (15 years old)	6 January 2009 (15 years old)
Launch price (MSRP)	$530	no data
Current price	$112 (0.2x MSRP)	$131

Technical specs

Core 2 Duo T9900 and Core 2 Duo T6600 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	2 (Dual-core)	2 (Dual-core)
Threads	2	2
Base clock speed	3.06 GHz	2.2 GHz
Boost clock speed	3.06 GHz	2.2 GHz
Bus support	1066 MHz	800 MHz
L1 cache	128 KB	128 KB
L2 cache	6 MB	2 MB
L3 cache	6 MB L2 Cache	2 MB L2 Cache
Chip lithography	45 nm	45 nm
Die size	107 mm²	107 mm²
Maximum core temperature	105 °C	90 °C
Number of transistors	410 Million	410 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	1.05V-1.2125V	1V-1.25V

Compatibility

Information on Core 2 Duo T9900 and Core 2 Duo T6600 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.

Socket	BGA479,PGA478	PGA478
Power consumption (TDP)	35 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T9900 and Core 2 Duo T6600. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Demand Based Switching	-	-
FSB parity	no data	-
Status	Discontinued	Discontinued

Security technologies

Core 2 Duo T9900 and Core 2 Duo T6600 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo T9900 and Core 2 Duo T6600 are enumerated here.

VT-x

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 Duo T9900 0.77
+51%

Core 2 Duo T6600 0.51

Core 2 Duo T9900 outperforms Core 2 Duo T6600 by 51% based on our aggregated benchmark results.

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.

Benchmark coverage: 68%

Core 2 Duo T9900 1179
+50%

Core 2 Duo T6600 786

Core 2 Duo T9900 outperforms Core 2 Duo T6600 by 50% in Passmark.

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 42%

Core 2 Duo T9900 386
+59.5%

Core 2 Duo T6600 242

Core 2 Duo T9900 outperforms Core 2 Duo T6600 by 60% in GeekBench 5 Single-Core.

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 42%

Core 2 Duo T9900 614
+65.9%

Core 2 Duo T6600 370

Core 2 Duo T9900 outperforms Core 2 Duo T6600 by 66% in GeekBench 5 Multi-Core.

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

Benchmark coverage: 20%

Core 2 Duo T9900 3538
+50.2%

Core 2 Duo T6600 2355

Core 2 Duo T9900 outperforms Core 2 Duo T6600 by 50% in Cinebench 10 32-bit single-core.

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Benchmark coverage: 19%

Core 2 Duo T9900 7094
+58.6%

Core 2 Duo T6600 4472

Core 2 Duo T9900 outperforms Core 2 Duo T6600 by 59% in Cinebench 10 32-bit multi-core.

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

Benchmark coverage: 19%

Core 2 Duo T9900 2787
+43.1%

Core 2 Duo T6600 1947

Core 2 Duo T9900 outperforms Core 2 Duo T6600 by 43% in 3DMark06 CPU.

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

Benchmark coverage: 18%

Core 2 Duo T9900 25.1
+183%

Core 2 Duo T6600 71.1

Core 2 Duo T6600 outperforms Core 2 Duo T9900 by 183% in wPrime 32.