Pentium 4 HT 540 vs Celeron B800

Primary details

Comparing Celeron B800 and Pentium 4 HT 540 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2991	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Celeron	no data
Power efficiency	1.13	no data
Architecture codename	Sandy Bridge (2011−2013)	Prescott (2001−2005)
Release date	19 June 2011 (13 years ago)	June 2004 (20 years ago)
Launch price (MSRP)	$80	no data

Detailed specifications

Celeron B800 and Pentium 4 HT 540 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)	1 (Single-Core)
Threads	2	2
Base clock speed	1.5 GHz	no data
Boost clock speed	1.5 GHz	3.2 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	no data
Multiplier	15	no data
L1 cache	64K (per core)	16 KB
L2 cache	256K (per core)	1 MB
L3 cache	2 MB (shared)	0 KB
Chip lithography	32 nm	90 nm
Die size	131 mm2	109 mm2
Maximum core temperature	100 °C	no data
Number of transistors	504 million	125 million
64 bit support	+	-
Windows 11 compatibility	-	-

Compatibility

Information on Celeron B800 and Pentium 4 HT 540 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	FCPGA988	775
Power consumption (TDP)	35 Watt	84 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron B800 and Pentium 4 HT 540. You'll probably need this information if you require some particular technology.

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

Security technologies

Celeron B800 and Pentium 4 HT 540 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron B800 and Pentium 4 HT 540 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron B800 and Pentium 4 HT 540. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR1, DDR2, DDR3
Maximum memory size	16 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	21.335 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for 2nd Generation Intel Processors	no data
Graphics max frequency	1 GHz	no data

Graphics interfaces

Available interfaces and connections of Celeron B800 and Pentium 4 HT 540 integrated GPUs.

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

Peripherals

Specifications and connection of peripherals supported by Celeron B800 and Pentium 4 HT 540.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Physical cores	2	1
Chip lithography	32 nm	90 nm
Power consumption (TDP)	35 Watt	84 Watt

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