Celeron G1820T vs Pentium G640

Primary details

Comparing Pentium G640 and Celeron G1820T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2561	2442
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.02	1.80
Market segment	Desktop processor	Desktop processor
Power efficiency	1.24	1.81
Architecture codename	Sandy Bridge (2011−2013)	Haswell (2013−2015)
Release date	3 June 2012 (12 years ago)	1 December 2013 (10 years ago)
Launch price (MSRP)	$179	$42

Cost-effectiveness evaluation

Performance per price, higher is better.

Celeron G1820T has 8900% better value for money than Pentium G640.

Detailed specifications

Pentium G640 and Celeron G1820T 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	2
Base clock speed	2.8 GHz	2.4 GHz
Boost clock speed	2.8 GHz	2.4 GHz
Bus rate	5 GT/s	5 GT/s
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	3 MB (shared)	3 MB (shared)
Chip lithography	32 nm	22 nm
Die size	131 mm2	177 mm2
Maximum core temperature	69 °C	no data
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	504 million	1,400 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium G640 and Celeron G1820T 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	FCLGA1155	FCLGA1150
Power consumption (TDP)	65 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G640 and Celeron G1820T. 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 G640 and Celeron G1820T technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium G640 and Celeron G1820T are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium G640 and Celeron G1820T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	32 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	17 GB/s	21.3 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	Intel® HD Graphics for 4th Generation Intel® Processors
Max video memory	no data	1.7 GB
Quick Sync Video	-	+
Graphics max frequency	1.1 GHz	1.05 GHz

Graphics interfaces

Available interfaces and connections of Pentium G640 and Celeron G1820T integrated GPUs.

Number of displays supported	2	3
eDP	no data	+
DisplayPort	-	+
HDMI	-	+
DVI	no data	+
VGA	no data	+

Graphics image quality

Maximum display resolutions supported by Pentium G640 and Celeron G1820T integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	1920x1080@60Hz
Max resolution over eDP	no data	2560x1600@60Hz
Max resolution over DisplayPort	no data	2560x1600@60Hz
Max resolution over VGA	no data	1920x1200@60Hz

Graphics API support

APIs supported by Pentium G640 and Celeron G1820T integrated GPUs, sometimes API versions are included.

DirectX	no data	11.1/12
OpenGL	no data	4.3

Peripherals

Specifications and connection of peripherals supported by Pentium G640 and Celeron G1820T.

PCIe version	2.0	Up to 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.

---

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.

---

Pros & cons summary

---

Performance score	0.87	1.05
Recency	3 June 2012	1 December 2013
Chip lithography	32 nm	22 nm
Power consumption (TDP)	65 Watt	35 Watt

---

Should you still have questions on choice between Pentium G640 and Celeron G1820T, 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.

---