Pentium Gold G6405 vs Pentium 3556U

Place in the ranking	2752	1723
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Pentium	no data
Power efficiency	4.23	4.36
Architecture codename	Haswell (2013−2015)	Comet Lake-R (2021)
Release date	1 September 2013 (11 years ago)	16 March 2021 (3 years ago)
Launch price (MSRP)	no data	$64

Detailed specifications

Pentium 3556U and Pentium Gold G6405 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	2	4
Base clock speed	1.7 GHz	4.1 GHz
Boost clock speed	1.7 GHz	4.1 GHz
Bus rate	5 GT/s	8 GT/s
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	2 MB (shared)	4 MB (shared)
Chip lithography	22 nm	14 nm
Die size	118 mm²	no data
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	105 °C	72 °C
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Pentium 3556U and Pentium Gold G6405 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	1200
Power consumption (TDP)	15 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 3556U and Pentium Gold G6405. 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)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Smart Response	-	no data
GPIO	+	no data
Smart Connect	+	no data
FDI	-	no data
AMT	9.5	no data
Matrix Storage	-	no data
HD Audio	+	no data
RST	+	no data

Security technologies

Pentium 3556U and Pentium Gold G6405 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data
Secure Key	+	no data
OS Guard	-	no data
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 3556U and Pentium Gold G6405 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 3556U and Pentium Gold G6405. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-2666
Maximum memory size	16 GB	no data
Max memory channels	2	no data
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 4th Generation Intel Processors	Intel UHD Graphics 610
Clear Video	+	no data
Graphics max frequency	1 GHz	no data

Graphics interfaces

Available interfaces and connections of Pentium 3556U and Pentium Gold G6405 integrated GPUs.

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

Peripherals

Specifications and connection of peripherals supported by Pentium 3556U and Pentium Gold G6405.

PCIe version	2.0	3.0
PCI Express lanes	10	16
PCI support	-	no data
USB revision	3.0	no data
Total number of SATA ports	2	no data
Max number of SATA 6 Gb/s Ports	2	no data
Integrated IDE	-	no data
Number of USB ports	4	no data
Integrated LAN	-	no data
UART	+	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 3556U 0.67

Pentium Gold G6405 2.67
+299%

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 3556U 1061

Pentium Gold G6405 4244
+300%

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.

Pentium 3556U 302

Pentium Gold G6405 845
+180%

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.

Pentium 3556U 493

Pentium Gold G6405 1726
+250%

Gaming performance

Pros & cons summary

Performance score	0.67	2.67
Integrated graphics card	0.77	1.89
Recency	1 September 2013	16 March 2021
Threads	2	4
Chip lithography	22 nm	14 nm

Pentium Gold G6405 has a 298.5% higher aggregate performance score, 145.5% faster integrated GPU, an age advantage of 7 years, 100% more threads, and a 57.1% more advanced lithography process.

The Pentium Gold G6405 is our recommended choice as it beats the Pentium 3556U in performance tests.

Be aware that Pentium 3556U is a notebook processor while Pentium Gold G6405 is a desktop one.

Should you still have questions on choice between Pentium 3556U and Pentium Gold G6405, ask them in Comments section, and we shall answer.