Pentium D 915 vs Core 2 Extreme QX9770

Aggregate performance score

Core 2 Extreme QX9770
2008
4 cores / 4 threads, 136 Watt
2.90
+900%
Pentium D 915
2006
2 cores / 2 threads, 95 Watt
0.29

Core 2 Extreme QX9770 outperforms Pentium D 915 by a whopping 900% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Extreme QX9770 and Pentium D 915 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking16583110
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency2.020.29
Architecture codenameYorkfield (2007−2009)Presler (2005−2007)
Release dateMarch 2008 (16 years ago)23 July 2006 (18 years ago)
Launch price (MSRP)no data$74

Detailed specifications

Core 2 Extreme QX9770 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 cores4 (Quad-Core)2 (Dual-core)
Threads42
Base clock speed3.2 GHz2.8 GHz
Boost clock speed3.2 GHz2.8 GHz
Bus rate1600 MHzno data
L1 cache64K (per core)16 KB (per core)
L2 cache12 MB (shared)2 MB (per die)
L3 cache0 KB0 KB
Chip lithography45 nm65 nm
Die size2x 107 mm22x 81 mm2
Maximum case temperature (TCase)55 °C63 °C
Number of transistors820 million376 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-
VID voltage range0.85V-1.3625V1.2V-1.3375V

Compatibility

Information on Core 2 Extreme QX9770 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 configuration11
SocketLGA775LGA775,PLGA775
Power consumption (TDP)136 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme QX9770 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++
Thermal Monitoring+-
Demand Based Switching--
PAEno data32 Bit
FSB parity--

Security technologies

Core 2 Extreme QX9770 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 Core 2 Extreme QX9770 and Pentium D 915 are enumerated here.

VT-dno data-
VT-x+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9770 and Pentium D 915. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

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 Extreme QX9770 2.90
+900%
Pentium D 915 0.29

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 Extreme QX9770 4611
+892%
Pentium D 915 465

Gaming performance

Pros & cons summary


Performance score 2.90 0.29
Physical cores 4 2
Threads 4 2
Chip lithography 45 nm 65 nm
Power consumption (TDP) 136 Watt 95 Watt

Core 2 Extreme QX9770 has a 900% higher aggregate performance score, 100% more physical cores and 100% more threads, and a 44.4% more advanced lithography process.

Pentium D 915, on the other hand, has 43.2% lower power consumption.

The Core 2 Extreme QX9770 is our recommended choice as it beats the Pentium D 915 in performance tests.


Should you still have questions on choice between Core 2 Extreme QX9770 and Pentium D 915, ask them in Comments section, and we shall answer.

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Intel Core 2 Extreme QX9770
Core 2 Extreme QX9770
Intel Pentium D 915
Pentium D 915

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


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Questions & comments

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