Athlon 64 X2 TK-55 vs Core 2 Duo P8400

Place in the ranking	2861	3089
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Duo	2x Athlon 64
Power efficiency	2.01	1.01
Architecture codename	Penryn (2008−2011)	Taylor / Hawk-256
Release date	15 July 2008 (16 years ago)	no data
Launch price (MSRP)	$209	no data

Detailed specifications

Core 2 Duo P8400 and Athlon 64 X2 TK-55 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	no data
Boost clock speed	2.26 GHz	1.8 GHz
Bus rate	1066 MHz	667 MHz
L1 cache	128 KB	no data
L2 cache	3 MB	no data
L3 cache	3 MB L2 Cache	no data
Chip lithography	45 nm	65 nm
Die size	107 mm²	no data
Maximum core temperature	105 °C	no data
Number of transistors	410 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.05V-1.15V	no data

Compatibility

Information on Core 2 Duo P8400 and Athlon 64 X2 TK-55 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,PBGA479,PGA478	no data
Power consumption (TDP)	25 Watt	31 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo P8400 and Athlon 64 X2 TK-55. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Duo P8400 and Athlon 64 X2 TK-55 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo P8400 and Athlon 64 X2 TK-55 are enumerated here.

VT-x

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 Duo P8400 0.53
+60.6%

Athlon 64 X2 TK-55 0.33

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 Duo P8400 848
+63.7%

Athlon 64 X2 TK-55 518

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.

Core 2 Duo P8400 2036
+54.7%

Athlon 64 X2 TK-55 1316