Atom N455 vs Celeron 3205U

Place in the ranking	2795	3337
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Atom
Power efficiency	3.79	1.62
Architecture codename	Broadwell-U (2015)	Pinetrail (2009−2011)
Release date	1 March 2015 (9 years ago)	1 June 2010 (14 years ago)
Launch price (MSRP)	$107	$64

Detailed specifications

Celeron 3205U and Atom N455 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	2 (Dual-core)	1 (Single-Core)
Threads	2	2
Base clock speed	1.5 GHz	1.66 GHz
Boost clock speed	1.5 GHz	1.67 GHz
Bus rate	5 GT/s	533 MHz
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	512K (per core)
L3 cache	2 MB (shared)	0 KB
Chip lithography	14 nm	45 nm
Die size	82 mm²	66 mm²
Maximum core temperature	105 °C	100 °C
Maximum case temperature (TCase)	105 °C	no data
Number of transistors	1300 Million	123 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Celeron 3205U and Atom N455 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	1
Socket	FCBGA1168	FCBGA559
Power consumption (TDP)	15 Watt	6.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 3205U and Atom N455. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE2, Intel® SSE3, Intel® SSSE3
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	+
Idle States	+	no data
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Smart Response	-	no data
Demand Based Switching	no data	-
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Celeron 3205U and Atom N455 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	+	no data
Identity Protection	+	-
OS Guard	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 3205U and Atom N455 are enumerated here.

AMD-V	+	-
VT-d	+	-
VT-x	+	-
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 3205U and Atom N455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	16 GB	2 GB
Max memory channels	2	1
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics for 5th Generation Intel Processors	Intel GMA 3150
Quick Sync Video	+	-
Clear Video	+	no data
Graphics max frequency	800 MHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Celeron 3205U and Atom N455 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by Celeron 3205U and Atom N455 integrated GPUs, sometimes API versions are included.

DirectX

11.2/12

no data

Peripherals

Specifications and connection of peripherals supported by Celeron 3205U and Atom N455.

PCIe version	2.0	no data
PCI Express lanes	12	no 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.

Celeron 3205U 0.60
+400%

Atom N455 0.12

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.

Celeron 3205U 947
+383%

Atom N455 196

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.

Celeron 3205U 268
+406%

Atom N455 53

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.

Celeron 3205U 483
+504%

Atom N455 80

Gaming performance

Pros & cons summary

Performance score	0.60	0.12
Integrated graphics card	0.77	0.01
Recency	1 March 2015	1 June 2010
Physical cores	2	1
Chip lithography	14 nm	45 nm
Power consumption (TDP)	15 Watt	6 Watt

Celeron 3205U has a 400% higher aggregate performance score, 7600% faster integrated GPU, an age advantage of 4 years, 100% more physical cores, and a 221.4% more advanced lithography process.

Atom N455, on the other hand, has 150% lower power consumption.

The Celeron 3205U is our recommended choice as it beats the Atom N455 in performance tests.

Should you still have questions on choice between Celeron 3205U and Atom N455, ask them in Comments section, and we shall answer.