Pentium Gold G5400 vs Pentium G645

Primary details

Comparing Pentium G645 and Pentium Gold G5400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2549	1800
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.06	5.74
Market segment	Desktop processor	Desktop processor
Series	no data	Intel Pentium Gold
Power efficiency	1.31	4.36
Architecture codename	Sandy Bridge (2011−2013)	Coffee Lake (2017−2019)
Release date	2 September 2012 (12 years ago)	2 April 2018 (6 years ago)
Launch price (MSRP)	$80	$64

Cost-effectiveness evaluation

Performance per price, higher is better.

Pentium Gold G5400 has 9467% better value for money than Pentium G645.

Detailed specifications

Pentium G645 and Pentium Gold G5400 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	2.9 GHz	3.7 GHz
Boost clock speed	2.9 GHz	3.7 GHz
Bus type	no data	DMI 3.0
Bus rate	5 GT/s	4 × 8 GT/s
Multiplier	no data	37
L1 cache	64 KB (per core)	128 KB
L2 cache	256 KB (per core)	512 KB
L3 cache	3 MB (shared)	4 MB (shared)
Chip lithography	32 nm	14 nm
Die size	131 mm2	126 mm2
Maximum core temperature	69 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Pentium G645 and Pentium Gold G5400 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 (Uniprocessor)
Socket	FCLGA1155	FCLGA1151
Power consumption (TDP)	65 Watt	58 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G645 and Pentium Gold G5400. You'll probably need this information if you require some particular technology.

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

Security technologies

Pentium G645 and Pentium Gold G5400 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium G645 and Pentium Gold G5400 are enumerated here.

VT-d	-	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium G645 and Pentium Gold G5400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-2400
Maximum memory size	32 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	17 GB/s	38.397 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics for 2nd Generation Intel Processors	Intel UHD Graphics 610
Max video memory	no data	64 GB
Quick Sync Video	-	+
Clear Video	no data	+
Clear Video HD	-	+
Graphics max frequency	1.1 GHz	1.05 GHz
InTru 3D	-	+

Graphics interfaces

Available interfaces and connections of Pentium G645 and Pentium Gold G5400 integrated GPUs.

Number of displays supported

2

3

Graphics image quality

Maximum display resolutions supported by Pentium G645 and Pentium Gold G5400 integrated GPUs, including resolutions over different interfaces.

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

Graphics API support

APIs supported by Pentium G645 and Pentium Gold G5400 integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Pentium G645 and Pentium Gold G5400.

PCIe version	2.0	3.0
PCI Express lanes	no data	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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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.

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Pros & cons summary

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Performance score	0.90	2.35
Integrated graphics card	0.77	1.89
Recency	2 September 2012	2 April 2018
Threads	2	4
Chip lithography	32 nm	14 nm
Power consumption (TDP)	65 Watt	58 Watt

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Should you still have questions on choice between Pentium G645 and Pentium Gold G5400, ask them in Comments section, and we shall answer.

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