Celeron M 925 vs Atom Z520

Primary details

Comparing Atom Z520 and Celeron M 925 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Atom	Intel Celeron M
Architecture codename	Silverthorne (2008−2010)	Penryn (2008−2011)
Release date	2 April 2008 (16 years ago)	1 January 2011 (13 years ago)
Launch price (MSRP)	$65	$70
Current price	$217 (3.3x MSRP)	$51 (0.7x MSRP)

Detailed specifications

Atom Z520 and Celeron M 925 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	1
Base clock speed	1.33 GHz	no data
Boost clock speed	0.03 GHz	2.3 GHz
Bus support	533.33 MT/s	800 MHz
L1 cache	56 KB	no data
L2 cache	512 KB	1 MB
L3 cache	0 KB	no data
Chip lithography	45 nm	45 nm
Die size	24.18 mm27.8 mm × 3.1 mm	107 mm2
Maximum core temperature	90 °C	no data
Number of transistors	47 Million	410 Million
64 bit support	-	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	0.75-1.1V	no data

Compatibility

Information on Atom Z520 and Celeron M 925 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)	no data
Socket	PBGA441	PGA478
Power consumption (TDP)	2 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z520 and Celeron M 925. 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	+	no data
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	+	no data
FSB parity	-	no data
Status	Discontinued	no data

Security technologies

Atom Z520 and Celeron M 925 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 Z520 and Celeron M 925 are enumerated here.

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

Pros & cons summary

---

Recency	2 April 2008	1 January 2011
Threads	2	1
Cost	$65	$70
Power consumption (TDP)	2 Watt	35 Watt

---

Should you still have questions on choice between Atom Z520 and Celeron M 925, ask them in Comments section, and we shall answer.

Vote for your favorite

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

---