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Intel Celeron B800

Intel Celeron B800: A Budget Processor for Basic Tasks in 2025

Introduction

In an era of multi-core processors and neural networks, even budget chips find their niche. The Intel Celeron B800, released in 2011 on the Sandy Bridge architecture, is still encountered in used and some new ultra-budget laptops. In 2025, its relevance raises questions, but for certain tasks, it remains a viable option. Let’s explore who should pay attention to this processor.

Architecture and Technology Process: The Sandy Bridge Legacy

Dual-Core Base Without Hyper-Threading

The Celeron B800 is built on a 32nm technology process and belongs to the Sandy Bridge generation. This is a dual-core CPU without Hyper-Threading support (2 cores / 2 threads). The base clock speed is 1.5 GHz, and there is no turbo mode, which limits performance in resource-intensive tasks.

Integrated Intel HD Graphics (Sandy Bridge)

The built-in GPU is Intel HD Graphics with a base frequency of 650 MHz and dynamic boost up to 1000 MHz. It supports DirectX 10.1 and resolutions up to 2560×1600, but is unsuitable for modern games or rendering. It is adequate for 1080p video but may have issues with H.265 (HEVC) codecs.

Cache and Memory

- L3 Cache: 2 MB.

- Memory Support: DDR3-1066/1333 MHz (up to 16 GB).

Power Consumption and TDP: Balancing Efficiency and Power

The CPU's TDP is 35 W, which is typical for mobile CPUs of its time. However, in 2025, this is a high figure for ultra-portable devices. Modern Intel Alder Lake-N chips (e.g., N100) offer comparable performance at a TDP of 6 W.

Power-Saving Technologies

- Enhanced SpeedStep: Dynamic adjustment of frequency and voltage based on load.

- C-States: Reduced power consumption during idle periods.

Performance: Realistic Expectations

Geekbench 6: The Numbers Don't Lie

- Single-Core: 253

- Multi-Core: 438

For comparison, the modern Intel N100 scores around ~1100/2300 points. The Celeron B800 even lags behind budget smartphones from 2025 (e.g., Snapdragon 7 Gen 3 — ~1800/4500).

Office Work

- Google Docs, Excel: Acceptable with 4-8 GB of RAM.

- Web Browsing: Slows down with 10+ tabs open in Chrome.

- Zoom: 720p without background effects.

Multimedia

- YouTube 1080p: Works via VP9 decoding, but may lag at 60 FPS.

- Music, Podcasts: No issues.

Gaming

- Minecraft (2011): ~30 FPS on low settings.

- CS:GO: Less than 20 FPS even at 720p.

- Modern games: won’t run or will result in slideshow performance.

Turbo Mode

None. The frequency is fixed at 1.5 GHz, which limits peak performance.

Use Scenarios: Who Should Consider the Celeron B800 in 2025?

1. Students for typing assignments and watching lectures.

2. Older users who need a simple device for Skype and news reading.

3. Backup laptop for travel where the risk of loss/breakage is high.

Not Suitable For:

- Video editing, programming with large datasets in Python.

- Running Windows 11 (officially unsupported).

Battery Life: How Long Will It Last?

With a TDP of 35 W and a typical 40 Wh battery, the laptop runtime is 3-4 hours when browsing the web. Modern processors (e.g., AMD Ryzen 3 7320U) provide 8-10 hours under similar loads.

Energy-Saving Technologies:

- Adaptive Brightness: Automatic screen brightness adjustment.

- Disabling Unused Cores during idle.

Comparison with Competitors: Who Else is in the Same Class?

1. AMD E2-1800 (2012): Similar performance but weaker graphics.

2. Intel Pentium 987 (Ivy Bridge, 2012): +10% speed, TDP 17 W.

3. Apple A8 (2014): Single-Core ~750, Multi-Core ~1300 — faster, but only in the iOS ecosystem.

From modern counterparts:

- Intel N100 (2023): Four times more powerful, TDP 6 W, laptops starting at $250.

- AMD Athlon Silver 7120U (2024): Zen 2, 2 cores, TDP 15 W.

Pros and Cons of the Celeron B800

Strengths:

- Price of laptops: new devices starting from $200 (e.g., TrekStor Surfbook E13).

- Repairability: upgrading RAM and SSD takes about 10 minutes.

- Compatibility with Linux (Lubuntu, Xubuntu).

Weaknesses:

- Low performance for Windows 10/11.

- Lack of USB 3.0 and Wi-Fi 6 support.

- Limited software update lifespan.

Recommendations for Choosing a Laptop

1. Type of Device: Ultra-budget laptop (not ultrabook!) with a screen size of 11-14 inches.

2. Essential Parameters:

- 8 GB of RAM (at least 4 GB).

- 128 GB SSD (HDD will slow down the system).

- Matte screen for work in bright light.

3. Avoid:

- Laptops with a resolution higher than 1366×768 — the processor will struggle.

- Gaming brands (ASUS TUF, Acer Nitro) — the B800 is not justified here.

Examples of 2025 Models:

- TrekStor Surfbook E13: $219, 13.3″, 4 GB RAM, 128 GB SSD.

- HP 14s-fq0005na: $249, 14″, 8 GB RAM, 256 GB SSD.

Final Conclusion: Who Should Buy It?

The Celeron B800 in 2025 is a choice for those who:

- Are looking for the cheapest new laptop for basic tasks.

- Do not trust used equipment but are willing to accept limitations.

- Plan to use Linux to extend the device's life.

Key Benefits: Minimal price, ease of use, and sufficient performance for tasks from the 2010s. However, even among budget newcomers in 2025, there are more advantageous options — such as laptops with Intel N100 processors starting at $250-300.

Basic

Label Name

Intel

Platform

Mobile

Launch Date

April 2011

Model Name

The Intel processor number is just one of several factors - along with processor brand, system configurations, and system-level benchmarks - to be considered when choosing the right processor for your computing needs.

B800

Code Name

Sandy Bridge

CPU Specifications

Total Cores

Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).

Total Threads

Where applicable, Intel® Hyper-Threading Technology is only available on Performance-cores.

Intel Turbo Boost Technology

Intel® Turbo Boost Technology dynamically increases the processor's frequency as needed by taking advantage of thermal and power headroom to give you a burst of speed when you need it, and increased energy efficiency when you don’t.

Intel Hyper-Threading Technology

Intel® Hyper-Threading Technology (Intel® HT Technology) delivers two processing threads per physical core. Highly threaded applications can get more work done in parallel, completing tasks sooner.

CPU Socket

The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.

FCPGA988

Technology

Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.

32 nm

Max. Operating Temperature

Junction Temperature is the maximum temperature allowed at the processor die.

100C

PCI Express Version

PCI Express Revision is the supported version of the PCI Express standard. Peripheral Component Interconnect Express (or PCIe) is a high-speed serial computer expansion bus standard for attaching hardware devices to a computer. The different PCI Express versions support different data rates.

2.0

Number of PCI Express Lanes

A PCI Express (PCIe) lane consists of two differential signaling pairs, one for receiving data, one for transmitting data, and is the basic unit of the PCIe bus. Max # of PCI Express Lanes is the total number of supported lanes.

Instruction Set

The instruction set is a hard program stored inside the CPU that guides and optimizes CPU operations. With these instruction sets, the CPU can run more efficiently. There are many manufacturers that design CPUs, which results in different instruction sets, such as the 8086 instruction set for the Intel camp and the RISC instruction set for the ARM camp. x86, ARM v8, and MIPS are all codes for instruction sets. Instruction sets can be extended; for example, x86 added 64-bit support to create x86-64. Manufacturers developing CPUs that are compatible with a certain instruction set need authorization from the instruction set patent holder. A typical example is Intel authorizing AMD, enabling the latter to develop CPUs compatible with the x86 instruction set.

64-bit

Intel 64

Intel® 64 architecture delivers 64-bit computing on server, workstation, desktop and mobile platforms when combined with supporting software.¹ Intel 64 architecture improves performance by allowing systems to address more than 4 GB of both virtual and physical memory.

Yes

PCI Express Configurations

PCI Express (PCIe) Configurations describe the available PCIe lane configurations that can be used to link to PCIe devices.

1x16 | 2x8 | 1x8 2x4

Memory Specifications

Memory Type

Intel® processors come in four different types: Single Channel, Dual Channel, Triple Channel, and Flex Mode. Maximum supported memory speed may be lower when populating multiple DIMMs per channel on products that support multiple memory channels.

DDR3 1066/1333

Max Memory Size

Max memory size refers to the maximum memory capacity supported by the processor.

16 GB

Memory Channels

The number of memory channels refers to the bandwidth operation for real world application.

Max Memory Bandwidth

Max Memory bandwidth is the maximum rate at which data can be read from or stored into a semiconductor memory by the processor (in GB/s).

21.3 GB/s

ECC Memory Supported

ECC Memory Supported indicates processor support for Error-Correcting Code memory. ECC memory is a type of system memory that can detect and correct common kinds of internal data corruption. Note that ECC memory support requires both processor and chipset support.

GPU Specifications

GPU Name

Intel® HD Graphics for 2nd Generation Intel® Processors

Graphics Base Frequency

Graphics Base frequency refers to the rated/guaranteed graphics render clock frequency in MHz.

650 MHz

Graphics Frequency

Graphics max dynamic frequency refers to the maximum opportunistic graphics render clock frequency (in MHz) that can be supported using Intel® HD Graphics with Dynamic Frequency feature.

1.00 GHz

Number of Displays Supported

Graphics Output

Graphics Output defines the interfaces available to communicate with display devices.

eDP/DP/HDMI/SDVO/CRT

Miscellaneous

Intel Virtualization Technology for Directed I/O (VT-d)

Intel® Virtualization Technology for Directed I/O (VT-d) continues from the existing support for IA-32 (VT-x) and Itanium® processor (VT-i) virtualization adding new support for I/O-device virtualization. Intel VT-d can help end users improve security and reliability of the systems and also improve performance of I/O devices in virtualized environments.

Intel Virtualization Technology (VT-x)

Intel® Virtualization Technology (VT-x) allows one hardware platform to function as multiple “virtual” platforms. It offers improved manageability by limiting downtime and maintaining productivity by isolating computing activities into separate partitions.

Yes

Instruction Set Extensions

Intel® SSE4.1 | Intel® SSE4.2

Enhanced Intel SpeedStep Technology

Enhanced Intel SpeedStep® Technology is an advanced means of enabling high performance while meeting the power-conservation needs of mobile systems. Conventional Intel SpeedStep® Technology switches both voltage and frequency in tandem between high and low levels in response to processor load. Enhanced Intel SpeedStep® Technology builds upon that architecture using design strategies such as Separation between Voltage and Frequency Changes, and Clock Partitioning and Recovery.

Yes

Execute Disable Bit

Execute Disable Bit is a hardware-based security feature that can reduce exposure to viruses and malicious-code attacks and prevent harmful software from executing and propagating on the server or network.

Yes

Intel AES New Instructions

Intel® AES New Instructions (Intel® AES-NI) are a set of instructions that enable fast and secure data encryption and decryption. AES-NI are valuable for a wide range of cryptographic applications, for example: applications that perform bulk encryption/decryption, authentication, random number generation, and authenticated encryption.

Intel Clear Video HD Technology

Intel® Clear Video HD Technology, like its predecessor, Intel® Clear Video Technology, is a suite of image decode and processing technologies built into the integrated processor graphics that improve video playback, delivering cleaner, sharper images, more natural, accurate, and vivid colors, and a clear and stable video picture. Intel® Clear Video HD Technology adds video quality enhancements for richer color and more realistic skin tones.

Intel InTru 3D Technology

Intel Flex Memory Access

Yes

Intel Quick Sync Video

Intel® Quick Sync Video delivers fast conversion of video for portable media players, online sharing, and video editing and authoring.

Benchmarks

Geekbench 6

Single Core Score

253

Geekbench 6

Multi Core Score

438

Geekbench 5

Single Core Score

280

Geekbench 5

Multi Core Score

507

Passmark CPU

Single Core Score

631

Passmark CPU

Multi Core Score

645

Compared to Other CPU

Geekbench 6 Single Core

Pentium B980

357 +41.1%

A4-4300M

313 +23.7%

A8-3520M

257 +1.6%

Celeron B800

253

Xeon E7-4809 v2

32 -87.4%

Geekbench 6 Multi Core

Celeron 3865U

693 +58.2%

Pentium B980

601 +37.2%

Core i3-2377M

500 +14.2%

Celeron B800

438

Xeon E7-4809 v2

58 -86.8%

Geekbench 5 Single Core

Xeon E5-2403

362 +29.3%

Celeron B830

324 +15.7%

Celeron B800

280

Pentium N3700

226 -19.3%

E2-2000

138 -50.7%

Geekbench 5 Multi Core

A8-5545M

723 +42.6%

A4-6300

620 +22.3%

Celeron B800

507

Celeron 847

390 -23.1%

E1-2100

194 -61.7%

Passmark CPU Single Core

Pentium N4200

855 +35.5%

Athlon 5370

755 +19.7%

Celeron B800

631

E2-1800

524 -17%

E1-2100

322 -49%

Passmark CPU Multi Core

Celeron G550T

1102 +70.9%

Celeron 1017U

888 +37.7%

A4-3320M

668 +3.6%

Celeron B800

645

Celeron B710

106 -83.6%