Celeron 6305 vs B840

Primary details

Comparing Celeron B840 and Celeron 6305 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2622	2126
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Tiger Lake
Architecture codename	Sandy Bridge (2011−2013)	Tiger Lake-U
Release date	1 July 2011 (12 years ago)	1 September 2020 (3 years ago)
Launch price (MSRP)	$86	no data
Current price	$133 (1.5x MSRP)	no data

Detailed specifications

Celeron B840 and Celeron 6305 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	1.9 GHz	no data
Boost clock speed	1.9 GHz	1.8 GHz
L1 cache	64K (per core)	160 KB
L2 cache	256K (per core)	2.5 MB
L3 cache	2 MB (shared)	4 MB
Chip lithography	32 nm	10 nm SuperFin
Die size	131 mm2	no data
Maximum core temperature	100 °C	100 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No

Compatibility

Information on Celeron B840 and Celeron 6305 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	FCPGA988,PGA988	FCBGA1449
Power consumption (TDP)	35 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron B840 and Celeron 6305. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
FMA	+	no data
AVX	no data	+
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	no data	+
My WiFi	+	no data
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	no data	-
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data
Status	Discontinued	Discontinued

Security technologies

Celeron B840 and Celeron 6305 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	no data
SGX	no data	-
OS Guard	no data	+
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron B840 and Celeron 6305 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron B840 and Celeron 6305. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4
Maximum memory size	16 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	21.3 GB/s	no data
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	Intel® UHD Graphics for 11th Gen Intel® Processors
Quick Sync Video	-	+
Clear Video HD	-	+
Graphics max frequency	1 GHz	1.25 GHz
Execution Units	no data	48

Graphics interfaces

Available interfaces and connections of Celeron B840 and Celeron 6305 integrated GPUs.

Number of displays supported	2	4
eDP	+	no data
DisplayPort	+	no data
HDMI	+	no data
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Celeron B840 and Celeron 6305 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096x2304@60Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	7680x4320@60Hz

Graphics API support

APIs supported by Celeron B840 and Celeron 6305 integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.6

Peripherals

Specifications and connection of peripherals supported by Celeron B840 and Celeron 6305.

PCIe version	2.0	no data
PCI Express lanes	16	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.

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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.

6305 outperforms B840 by 105% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	0.66	1.35
Recency	1 July 2011	1 September 2020
Chip lithography	32 nm	10 nm
Power consumption (TDP)	35 Watt	15 Watt

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Should you still have questions on choice between Celeron B840 and Celeron 6305, ask them in Comments section, and we shall answer.

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