Phenom II X2 550 vs Pentium 4405U

Place in the ranking	2262	2683
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.04
Market segment	Laptop	Desktop processor
Series	Intel Pentium	no data
Power efficiency	8.39	0.86
Architecture codename	Skylake (2015−2016)	Callisto (2009−2010)
Release date	1 September 2015 (9 years ago)	4 November 2009 (15 years ago)
Launch price (MSRP)	$161	$133

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Pentium 4405U and Phenom II X2 550 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)	2 (Dual-core)
Threads	4	2
Base clock speed	2.1 GHz	3.1 GHz
Boost clock speed	2.1 GHz	3.1 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	no data
Multiplier	21	no data
L1 cache	128 KB	128 KB (per core)
L2 cache	512 KB	512 KB (per core)
L3 cache	2 MB	6 MB (shared)
Chip lithography	14 nm	45 nm
Die size	98.57 mm²	258 mm²
Maximum core temperature	100 °C	no data
Number of transistors	1750 Million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium 4405U and Phenom II X2 550 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	FCBGA1356	AM3
Power consumption (TDP)	15 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 4405U and Phenom II X2 550. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	no data
My WiFi	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Smart Response	+	no data

Security technologies

Pentium 4405U and Phenom II X2 550 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Secure Key	+	no data
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 4405U and Phenom II X2 550 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 4405U and Phenom II X2 550. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR3
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	34.134 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 510	On certain motherboards (Chipset feature)
Max video memory	32 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	950 MHz	no data

Graphics interfaces

Available interfaces and connections of Pentium 4405U and Phenom II X2 550 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Pentium 4405U and Phenom II X2 550 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Pentium 4405U and Phenom II X2 550 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.4	no data

Peripherals

Specifications and connection of peripherals supported by Pentium 4405U and Phenom II X2 550.

PCIe version	2.0	2.0
PCI Express lanes	10	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.

Pentium 4405U 1.33
+82.2%

Phenom II X2 550 0.73

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.

Pentium 4405U 2107
+80.5%

Phenom II X2 550 1167

Gaming performance

Pros & cons summary

Performance score	1.33	0.73
Recency	1 September 2015	4 November 2009
Threads	4	2
Chip lithography	14 nm	45 nm
Power consumption (TDP)	15 Watt	80 Watt

Pentium 4405U has a 82.2% higher aggregate performance score, an age advantage of 5 years, 100% more threads, a 221.4% more advanced lithography process, and 433.3% lower power consumption.

The Pentium 4405U is our recommended choice as it beats the Phenom II X2 550 in performance tests.

Be aware that Pentium 4405U is a notebook processor while Phenom II X2 550 is a desktop one.

Should you still have questions on choice between Pentium 4405U and Phenom II X2 550, ask them in Comments section, and we shall answer.