Core 2 Duo T5550 vs Core 2 Extreme X7900

VS

Aggregate performance score

Core 2 Extreme X7900
2007
2 cores / 2 threads, 44 Watt
0.70
+75%
Core 2 Duo T5550
2008
2 cores / 2 threads, 35 Watt
0.40

Core 2 Extreme X7900 outperforms Core 2 Duo T5550 by an impressive 75% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Extreme X7900 and Core 2 Duo T5550 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking27243001
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core 2 ExtremeIntel Core 2 Duo
Power efficiency1.511.11
Architecture codenameMerom (2006−2008)Merom (2006−2008)
Release date1 September 2007 (17 years ago)1 January 2008 (16 years ago)
Launch price (MSRP)$851no data

Detailed specifications

Core 2 Extreme X7900 and Core 2 Duo T5550 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 cores2 (Dual-core)2 (Dual-core)
Threads22
Base clock speed2.8 GHz1.83 GHz
Boost clock speed2.8 GHz1.83 GHz
Bus rate800 MHz667 MHz
L1 cache128 KBno data
L2 cache4 MB2 MB
L3 cache0 KB2 MB L2 Cache
Chip lithography65 nm65 nm
Die size143 mm2143 mm2
Maximum core temperature100 °C100 °C
Number of transistorsno data291 Million
64 bit support++
Windows 11 compatibility--
VID voltage range1.1V-1.375V1.075V-1.25V

Compatibility

Information on Core 2 Extreme X7900 and Core 2 Duo T5550 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 configuration1no data
SocketPPGA478PPGA478
Power consumption (TDP)44 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme X7900 and Core 2 Duo T5550. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Extreme X7900 and Core 2 Duo T5550 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 X7900 and Core 2 Duo T5550 are enumerated here.

VT-x+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme X7900 and Core 2 Duo T5550. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1no 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 Extreme X7900 0.70
+75%
Core 2 Duo T5550 0.40

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 X7900 1104
+72%
Core 2 Duo T5550 642

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.

Core 2 Extreme X7900 387
+70.5%
Core 2 Duo T5550 227

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.

Core 2 Extreme X7900 625
+52.4%
Core 2 Duo T5550 410

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.

Core 2 Extreme X7900 3022
+65.5%
Core 2 Duo T5550 1826

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.

Core 2 Extreme X7900 5764
+69.7%
Core 2 Duo T5550 3397

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 Extreme X7900 2449
+65%
Core 2 Duo T5550 1484

Gaming performance

Pros & cons summary


Performance score 0.70 0.40
Recency 1 September 2007 1 January 2008
Power consumption (TDP) 44 Watt 35 Watt

Core 2 Extreme X7900 has a 75% higher aggregate performance score.

Core 2 Duo T5550, on the other hand, has an age advantage of 4 months, and 25.7% lower power consumption.

The Core 2 Extreme X7900 is our recommended choice as it beats the Core 2 Duo T5550 in performance tests.


Should you still have questions on choice between Core 2 Extreme X7900 and Core 2 Duo T5550, ask them in Comments section, and we shall answer.

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Intel Core 2 Extreme X7900
Core 2 Extreme X7900
Intel Core 2 Duo T5550
Core 2 Duo T5550

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Community ratings

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Questions & comments

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