Pentium D 915 vs Pentium M 780

Place in the ranking	3183	3126
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Pentium M	no data
Power efficiency	0.84	0.29
Architecture codename	Dothan (2004−2005)	Presler (2005−2007)
Release date	25 July 2005 (19 years ago)	23 July 2006 (18 years ago)
Launch price (MSRP)	no data	$74

Detailed specifications

Pentium M 780 and Pentium D 915 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	1 (Single-Core)	2 (Dual-core)
Threads	1	2
Base clock speed	2.26 GHz	2.8 GHz
Boost clock speed	0.03 GHz	2.8 GHz
Bus rate	533 MHz	no data
L1 cache	32 KB	16 KB (per core)
L2 cache	2 MB	2 MB (per die)
L3 cache	0 KB	0 KB
Chip lithography	90 nm	65 nm
Die size	87 mm²	2x 81 mm²
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	63 °C
Number of transistors	144 million	376 million
64 bit support	-	+
Windows 11 compatibility	-	-
VID voltage range	1.26V-1.404V	1.2V-1.3375V

Compatibility

Information on Pentium M 780 and Pentium D 915 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	PPGA478, H-PBGA479	LGA775,PLGA775
Power consumption (TDP)	27 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium M 780 and Pentium D 915. 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	-	-
PAE	32 Bit	32 Bit
FSB parity	-	-

Security technologies

Pentium M 780 and Pentium D 915 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium M 780 and Pentium D 915 are enumerated here.

VT-d	no data	-
VT-x	-	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium M 780 and Pentium D 915. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR2

DDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

Gaming performance

Pros & cons summary

Performance score	0.24	0.29
Recency	25 July 2005	23 July 2006
Physical cores	1	2
Threads	1	2
Chip lithography	90 nm	65 nm
Power consumption (TDP)	27 Watt	95 Watt

Pentium M 780 has 251.9% lower power consumption.

Pentium D 915, on the other hand, has a 20.8% higher aggregate performance score, an age advantage of 11 months, 100% more physical cores and 100% more threads, and a 38.5% more advanced lithography process.

The Pentium D 915 is our recommended choice as it beats the Pentium M 780 in performance tests.

Be aware that Pentium M 780 is a notebook processor while Pentium D 915 is a desktop one.

Should you still have questions on choice between Pentium M 780 and Pentium D 915, ask them in Comments section, and we shall answer.