Core 2 Duo T7700 vs Core 2 Duo P8400

Place in performance ranking	2704	2654
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)	Merom (2006−2008)
Release date	15 July 2008 (15 years ago)	2 September 2007 (16 years ago)
Launch price (MSRP)	$209	$307
Current price	$37 (0.2x MSRP)	$143 (0.5x MSRP)

Detailed Specifications

Core 2 Duo P8400 and Core 2 Duo T7700 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	2.26 GHz	2.4 GHz
Boost clock speed	2.26 GHz	2.4 GHz
Bus support	1066 MHz	800 MHz
L1 cache	128 KB	64 KB
L2 cache	3 MB	4 MB
L3 cache	3 MB L2 Cache	0 KB
Chip lithography	45 nm	65 nm
Die size	107 mm²	143 mm²
Maximum core temperature	105 °C	100 °C
Number of transistors	410 Million	291 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	1.05V-1.15V	no data

Compatibility

Information on Core 2 Duo P8400 and Core 2 Duo T7700 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	no data	1
Socket	BGA479,PBGA479,PGA478	PBGA479,PPGA478
Power consumption (TDP)	25 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo P8400 and Core 2 Duo T7700. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Demand Based Switching	-	-
FSB parity	-	-
Status	Discontinued	Discontinued

Security technologies

Core 2 Duo P8400 and Core 2 Duo T7700 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 P8400 and Core 2 Duo T7700 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 P8400 0.54

Core 2 Duo T7700 0.61
+13%

Core 2 Duo T7700 outperforms Core 2 Duo P8400 by 13% 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 P8400 842

Core 2 Duo T7700 945
+12.2%

Core 2 Duo T7700 outperforms Core 2 Duo P8400 by 12% 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 P8400 274
+8.3%

Core 2 Duo T7700 253

Core 2 Duo P8400 outperforms Core 2 Duo T7700 by 8% 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 P8400 454
+12.1%

Core 2 Duo T7700 405

Core 2 Duo P8400 outperforms Core 2 Duo T7700 by 12% 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 P8400 2497

Core 2 Duo T7700 2554
+2.3%

Core 2 Duo T7700 outperforms Core 2 Duo P8400 by 2% 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 P8400 4630
+0.2%

Core 2 Duo T7700 4620

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 P8400 2036

Core 2 Duo T7700 2058
+1.1%

Core 2 Duo T7700 outperforms Core 2 Duo P8400 by 1% in 3DMark06 CPU.