Intel Atom Z3740 vs AMD Athlon X2 QL-66

Price now 5.99$
Games supported 28%
Athlon X2 QL-66
AMD Athlon X2 QL-66
  • Interface
  • Core clock speed
  • Max video memory
  • Memory type
  • Memory clock speed
  • Maximum resolution
Atom Z3740
Intel Atom Z3740
  • Interface
  • Core clock speed
  • Max video memory
  • Memory type
  • Memory clock speed
  • Maximum resolution
Price now 233$
Games supported 24%

General info

Comparing Athlon X2 QL-66 and Atom Z3740 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking26622667
Market segmentLaptopLaptop
Series2x AMD Athlonno data
Architecture codenameLion (2008−2009)Bay Trail-T (2013−2014)
Release date1 September 2009 (13 years old)11 September 2013 (9 years old)
Launch price (MSRP)no data$32
Current price$5.99 $233 (7.3x MSRP)

Technical specs

Athlon X2 QL-66 and Atom Z3740 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)4 (Quad-Core)
Base clock speedno data1.33 GHz
Boost clock speed2.2 GHz1.86 GHz
Bus support3600 MHzno data
L1 cache256 KB64K (per core)
L2 cache1 MB512K (per core)
L3 cacheno data0 KB
Chip lithography65 nm22 nm
Maximum core temperature100 °C90 °C
64 bit support++
Windows 11 compatibility--
Unlocked multiplierno data-


Information on Athlon X2 QL-66 and Atom Z3740 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 configurationno data1
Power consumption (TDP)35 Watt2 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon X2 QL-66 and Atom Z3740. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualizationno data
AES-NIno data+
PowerNow+no data
Enhanced SpeedStep (EIST)no data+

Security technologies

Athlon X2 QL-66 and Atom Z3740 technologies aimed at improving security, for example, by protecting against hacks.

Secure Keyno data+
Identity Protectionno data+
Anti-Theftno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon X2 QL-66 and Atom Z3740 are enumerated here.

VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon X2 QL-66 and Atom Z3740. Depending on the motherboards, higher memory frequencies may be supported.

Supported memory typesno dataDDR3
Maximum memory sizeno data4 GB
Max memory channelsno data2
Maximum memory bandwidthno data17.1 GB/s
ECC memory supportno data-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel® HD Graphics for Intel Atom® Processor Z3700 Series
Quick Sync Videono data+
Clear Video HDno data+
Graphics max frequencyno data667 MHz

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.

Athlon X2 QL-66 0.51
Atom Z3740 0.50

Athlon X2 QL-66 outperforms Atom Z3740 by 2% in our combined benchmark results.


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.

Benchmark coverage: 68%

Athlon X2 QL-66 641
Atom Z3740 634

Athlon X2 QL-66 outperforms Atom Z3740 by 1% in Passmark.

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.

Benchmark coverage: 20%

Athlon X2 QL-66 1695
Atom Z3740 963

Athlon X2 QL-66 outperforms Atom Z3740 by 76% in Cinebench 10 32-bit single-core.

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.

Benchmark coverage: 19%

Athlon X2 QL-66 3320
Atom Z3740 3380

Atom Z3740 outperforms Athlon X2 QL-66 by 2% in Cinebench 10 32-bit multi-core.

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.

Benchmark coverage: 19%

Athlon X2 QL-66 1520
Atom Z3740 1838

Atom Z3740 outperforms Athlon X2 QL-66 by 21% in 3DMark06 CPU.

Gaming performance

Advantages and disadvantages

Performance score 0.51 0.50
Recency 1 September 2009 11 September 2013
Boost clock speed 2200 1867
Chip lithography 65 nm 22 nm
Power consumption (TDP) 35 Watt 2 Watt

We couldn't decide between Athlon X2 QL-66 and Atom Z3740. The differences in performance seem too small.

Should you still have questions on choice between Athlon X2 QL-66 and Atom Z3740, ask them in Comments section, and we shall answer.

Cast your own vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

AMD Athlon X2 QL-66
Athlon X2 QL-66
Intel Atom Z3740
Atom Z3740

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4.4 16 votes

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Questions and comments

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