Celeron B800

Details and Benchmarks for Intel Celeron B800

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Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Celeron B800 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,195 Rank: 1685
Rank Name Score Visual
1681 A8-7200P 4,196
+0%
1682 Phenom II P960 4,196
+0%
1683 Core i3-380M 4,196
+0%
1684 Core i5-2410M 4,195
+0%
1685 Celeron B800 4,195
1686 Core 2 Duo E8200 4,194
+-0%
1687 Core 2 Quad Q8300 4,194
+-0%
1688 Phenom II N830 4,191
-0.1%
1689 Xeon 5150 4,190
-0.1%
1690 Phenom II X4 910 4,190
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Celeron B800 based on multi-threaded benchmark results.

4,652 Rank: 1027
Rank Name Score Visual
1023 Phenom II X6 1100T 4,656
+0.1%
1024 Xeon X5677 4,655
+0.1%
1025 Xeon E5-1607 v4 4,654
+0%
1026 FX-6200 4,653
+0%
1027 Celeron B800 4,652
1028 Xeon X3470 4,652
+0%
1029 Phenom II X6 1045T 4,651
+-0%
1030 FX-8140 4,651
+-0%
1031 Core i7-2720QM 4,650
+-0%
1032 Core i5-2310 4,650
+-0%

View full ranking →

Singlecore Score

Single-core performance score for Celeron B800 based on single-threaded benchmark results.

3,890 Rank: 1837
Rank Name Score Visual
1833 E2-3000M 3,894
+0.1%
1834 Intel Pentium P6200 3,893
+0.1%
1835 V140 3,893
+0.1%
1836 Intel Core i3-350M 3,892
+0.1%
1837 Celeron B800 3,890
1838 Atom C3858 3,890
+0%
1839 Core i5-4200Y 3,887
-0.1%
1840 Pentium T4500 3,884
-0.2%
1841 Athlon 64 X2 5000+ 3,880
-0.3%
1842 A4-3305M 3,877
-0.3%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Celeron B800 based on integer math, floating point math, and prime number computation benchmarks.

4,478 Rank: 1676
Rank Name Score Visual
1672 E2-9000e 4,480
+0%
1673 Celeron N3350 4,479
+0%
1674 E2-3200 4,479
+0%
1675 Celeron B810 4,478
+0%
1676 Celeron B800 4,478
1677 Pentium T4500 4,478
+0%
1678 Pentium 967 4,477
+-0%
1679 Celeron 877 4,477
+-0%
1680 Pentium T4400 4,477
+-0%
1681 Pentium T4300 4,476
+-0%

View full ranking →

Data Processing

Aggregated score for Celeron B800 based on data encryption, data compression, and string sorting benchmarks.

4,440 Rank: 1694
Rank Name Score Visual
1690 Celeron 2957U 4,442
+0%
1691 Celeron 1007U 4,442
+0%
1692 Celeron N2830 4,441
+0%
1693 Celeron N3000 4,441
+0%
1694 Celeron B800 4,440
1695 Celeron N3010 4,440
+0%
1696 Pentium 987 4,439
+-0%
1697 A6-4455M 4,439
+-0%
1698 A4-4355M 4,439
+-0%
1699 E2-9000e 4,439
+-0%

View full ranking →

Physics & Compute

Aggregated score for Celeron B800 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,464 Rank: 1641
Rank Name Score Visual
1637 E2-9010 4,465
+0%
1638 E2-6110 4,465
+0%
1639 E2-3800 4,465
+0%
1640 Pentium 987 4,464
+0%
1641 Celeron B800 4,464
1642 Celeron 877 4,464
+0%
1643 Pentium E6600 4,464
+0%
1644 Athlon II X2 220 4,464
+0%
1645 A6-9200 4,464
+0%
1646 Atom Z3740 4,464
+0%

View full ranking →

Celeron B800 Details

Built on Intel's Sandy Bridge microarchitecture and manufactured on a 32 nm process, the Celeron B800 is a mobile processor that was launched in June 2011. As of early 2026, it represents a legacy device, long since surpassed by modern processors in both performance and feature set. Despite its age, the Celeron B800 remains notable for its integration of Intel HD Graphics (Sandy Bridge) and support for dual-channel DDR3 memory. Designed for low-power mobile systems, the processor operates at a base frequency of 1.5 GHz, with a locked multiplier and a TDP of 35 W, making it suitable for lightweight computing tasks and energy-efficient notebooks.

The Celeron B800 features two cores and two threads, lacking simultaneous multithreading (SMT) support, which limits its ability to handle multithreaded workloads efficiently. It includes a 2 MiB L3 cache and 0.5 MiB of L2 cache, with L1 cache split into 64 KiB for data and 64 KiB for instructions. The processor supports DDR3-1333 and DDR3-1066 memory across a dual-channel interface, achieving a maximum memory bandwidth of 19.87 GiB/s. It uses the rPGA988B package and Socket G2, with a PCIe 2.0 interface supporting up to 16 lanes. The integrated Intel HD Graphics (Sandy Bridge) offers six execution units and a maximum frequency of 1000 MHz, capable of driving up to two displays.

Key features include Intel's Enhanced SpeedStep Technology (EIST) for dynamic power management, Intel Flex Memory Access, and support for hardware virtualization via VT-x. The processor also supports AES encryption instructions, AVX, and AVX2, though these are limited by the lack of multithreading and the aging architecture. It supports the full x86-64 instruction set, including SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, and FMA extensions, ensuring compatibility with older software and operating systems.

In benchmark testing, the Celeron B800 achieves a Singlecore Score of 3890, ranking #1837 out of 2060, and a Multicore Score of 4652, placing it #1027 of 2060. Its Overall Score is 4195, positioning it at #1684 in the overall ranking. While it outperforms some older dual-core processors like the Core 2 Duo E8200 and the Phenom II X4 910, it falls significantly behind modern CPUs. The processor’s performance is most competitive in single-threaded applications, where its 1.5 GHz clock speed allows it to compete with early-generation Intel and AMD mobile CPUs. However, its multicore capabilities are weak, and it is outpaced by nearly every contemporary processor.

Given its age and modest performance, the Celeron B800 is best suited for basic computing tasks such as web browsing, office productivity, and media playback. It is not recommended for demanding applications like video editing, gaming, or virtualization. As of February 2026, the Celeron B800 serves as a historical example of Intel’s mobile processor evolution, illustrating the significant advancements in performance, efficiency, and feature integration over the past decade.
Frequently Compared

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Intel Celeron B800

Main Specifications

Designer: Intel
Name: Celeron B800
Family: Celeron
Series: 800
Model Number: B800
Cores: 2
Threads: 2
Base Frequency: 1500 MHz
Clock Multiplier: 15x (locked)
Microarchitecture: Sandy Bridge
Core Name: Sandy Bridge M
Core Family: 6
Core Model: 42
Socket: Socket
Package: rPGA988B
Chipset: Cougar
Target Segment: Mobile
Max CPUs: 1
TDP: 35 W
Release Price: $80.00

Cache Specifications

L1 Cache: 128 KiB
L1 Instruction Cache: 64 KiB (8-way set associative)
L1 Data Cache: 64 KiB (8-way set associative)
L2 Cache: 0.5 MiB (8-way set associative)
L3 Cache: 2 MiB (8-way set associative)

Memory Specifications

Supported Memory Type: DDR3-1333 and DDR3-1066
Memory Channels: 2
Maximum Memory: 16 GB
Maximum Bandwidth: 19.87 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 16
PCIe Configuration: 1x16, 2x8, 1x8+2x4

Integrated Graphics

GPU: HD
GPU Designer: Intel
GPU Max Frequency: 1000 MHz
Execution Units: 6

Physical Specifications

Process: 32 nm
Die Area: 131 mm²
Transistor Count: 0.50 billion
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 AES CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX HT TBT 2.0 EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT TSX Flex Memory FMA
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