Phenom II X3 B75 vs Core 2 Duo E6550

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Aggregate performance score

Core 2 Duo E6550
2007
2 cores / 2 threads, 65 Watt
0.57
Phenom II X3 B75
2009
3 cores / 3 threads, 95 Watt
1.12
+96.5%

Phenom II X3 B75 outperforms Core 2 Duo E6550 by an impressive 96% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo E6550 and Phenom II X3 B75 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking28352405
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency0.831.12
Architecture codenameConroe (2006−2007)Heka (2009−2010)
Release dateJuly 2007 (17 years ago)1 October 2009 (15 years ago)

Detailed specifications

Core 2 Duo E6550 and Phenom II X3 B75 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)3 (Tri-Core)
Threads23
Base clock speed2.33 GHz3 GHz
Boost clock speed2.33 GHz3 GHz
Bus rate1333 MHzno data
L1 cache64 KB128 KB (per core)
L2 cache4 MB512 KB (per core)
L3 cache0 KB6 MB (shared)
Chip lithography65 nm45 nm
Die size143 mm2258 mm2
Maximum core temperature72 °Cno data
Number of transistors291 million758 million
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.5Vno data

Compatibility

Information on Core 2 Duo E6550 and Phenom II X3 B75 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
SocketPLGA775AM3
Power consumption (TDP)65 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E6550 and Phenom II X3 B75. 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
Thermal Monitoring+-
Demand Based Switching-no data
FSB parity-no data

Security technologies

Core 2 Duo E6550 and Phenom II X3 B75 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 E6550 and Phenom II X3 B75 are enumerated here.

AMD-V-+
VT-x+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E6550 and Phenom II X3 B75. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E6550 and Phenom II X3 B75.

PCIe versionno data2.0

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 E6550 0.57
Phenom II X3 B75 1.12
+96.5%

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 E6550 898
Phenom II X3 B75 1781
+98.3%

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 Duo E6550 260
Phenom II X3 B75 338
+30%

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 Duo E6550 431
Phenom II X3 B75 819
+90%

Gaming performance

Pros & cons summary


Performance score 0.57 1.12
Physical cores 2 3
Threads 2 3
Chip lithography 65 nm 45 nm
Power consumption (TDP) 65 Watt 95 Watt

Core 2 Duo E6550 has 46.2% lower power consumption.

Phenom II X3 B75, on the other hand, has a 96.5% higher aggregate performance score, 50% more physical cores and 50% more threads, and a 44.4% more advanced lithography process.

The Phenom II X3 B75 is our recommended choice as it beats the Core 2 Duo E6550 in performance tests.


Should you still have questions on choice between Core 2 Duo E6550 and Phenom II X3 B75, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Core 2 Duo E6550
Core 2 Duo E6550
AMD Phenom II X3 B75
Phenom II X3 B75

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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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