Atom E680 vs Z540

Place in the ranking	3199	3202
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Atom	no data
Power efficiency	8.68	5.21
Architecture codename	Silverthorne (2008−2010)	Tunnel Creek (2010)
Release date	2 April 2008 (16 years ago)	14 September 2010 (14 years ago)
Launch price (MSRP)	$160	no data

Detailed specifications

Atom Z540 and Atom E680 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)	1 (Single-Core)
Threads	2	2
Base clock speed	1.86 GHz	no data
Boost clock speed	0.07 GHz	1.6 GHz
Bus type	FSB	no data
Bus rate	533.33 MT/s	no data
Multiplier	14	no data
L1 cache	56 KB	64 KB (per core)
L2 cache	512 KB	512 KB (per core)
L3 cache	0 KB	0 KB
Chip lithography	45 nm	45 nm
Die size	24.18 mm²	26 mm²
Maximum core temperature	90 °C	no data
Number of transistors	47 Million	47 million
64 bit support	-	-
Windows 11 compatibility	-	-
VID voltage range	0.75 -1.1V	no data

Compatibility

Information on Atom Z540 and Atom E680 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 (Uniprocessor)	1
Socket	PBGA441	Intel BGA 676
Power consumption (TDP)	2.4 Watt	4 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z540 and Atom E680. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	+	+
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	+	no data
FSB parity	-	no data

Security technologies

Atom Z540 and Atom E680 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 Atom Z540 and Atom E680 are enumerated here.

VT-d	-	no data
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z540 and Atom E680. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Intel GMA 600

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.

Atom Z540 0.22

Atom E680 0.22

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.

Atom Z540 348
+0.6%

Atom E680 346