Celeron B815

Details and Benchmarks for Intel Celeron B815

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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 B815 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,202 Rank: 1677
Rank Name Score Visual
1673 A6-3650 4,203
+0%
1674 Core 2 Duo T9400 4,203
+0%
1675 Core 2 Duo P8700 4,203
+0%
1676 Celeron 2950M 4,203
+0%
1677 Celeron B815 4,202
1678 Celeron E3500 4,200
+-0%
1679 Athlon X4 730 4,200
+-0%
1680 A4-4000 4,197
-0.1%
1681 A8-7200P 4,196
-0.1%
1682 Phenom II P960 4,196
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Celeron B815 based on multi-threaded benchmark results.

4,592 Rank: 1099
Rank Name Score Visual
1095 Pentium G4600 4,595
+0.1%
1096 Core i5-4570T 4,594
+0%
1097 Pentium Gold G5420 4,593
+0%
1098 Core i3-8121U 4,593
+0%
1099 Celeron B815 4,592
1100 A10-9700 4,592
+0%
1101 Phenom II X4 B50 4,591
+-0%
1102 Athlon Gold 7220U 4,591
+-0%
1103 Intel Core i5-6198DU 4,590
+-0%
1104 Core i7-6600U 4,589
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Celeron B815 based on single-threaded benchmark results.

3,942 Rank: 1806
Rank Name Score Visual
1802 Athlon 64 X2 5600+ 3,946
+0.1%
1803 A6-3430MX 3,945
+0.1%
1804 Celeron G460 3,944
+0.1%
1805 A4-4300M 3,943
+0%
1806 Celeron B815 3,942
1807 A10-5745M 3,942
+0%
1808 Athlon II P320 3,942
+0%
1809 Pentium 4 3.00GHz 3,940
-0.1%
1810 Athlon II X3 400e 3,940
-0.1%
1811 Core 2 Duo T5870 3,939
-0.1%

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 B815 based on integer math, floating point math, and prime number computation benchmarks.

4,482 Rank: 1653
Rank Name Score Visual
1649 Atom C3338 4,483
+0%
1650 Athlon II X2 B24 4,483
+0%
1651 Athlon II X2 245 4,483
+0%
1652 A4-4355M 4,483
+0%
1653 Celeron B815 4,482
1654 Celeron 887 4,482
+0%
1655 Athlon II X2 240 4,482
+0%
1656 Athlon II X2 220 4,482
+0%
1657 A4-3400 4,482
+0%
1658 Celeron E3400 4,482
+0%

View full ranking →

Data Processing

Aggregated score for Celeron B815 based on data encryption, data compression, and string sorting benchmarks.

4,443 Rank: 1685
Rank Name Score Visual
1681 Celeron 1017U 4,444
+0%
1682 E2-3000M 4,444
+0%
1683 Celeron N2840 4,444
+0%
1684 Pentium P6000 4,444
+0%
1685 Celeron B815 4,443
1686 Celeron 887 4,443
+0%
1687 E2-9000 4,443
+0%
1688 A6-7000 4,443
+0%
1689 Celeron N3060 4,443
+0%
1690 Celeron 2957U 4,442
+-0%

View full ranking →

Physics & Compute

Aggregated score for Celeron B815 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,468 Rank: 1617
Rank Name Score Visual
1613 Atom Z3770 4,469
+0%
1614 Celeron N2930 4,469
+0%
1615 A4-5000 4,469
+0%
1616 Celeron N2940 4,469
+0%
1617 Celeron B815 4,468
1618 Celeron 887 4,468
+0%
1619 Athlon II X2 255 4,468
+0%
1620 A4-4000 4,468
+0%
1621 Pentium P6200 4,468
+0%
1622 A4-3420 4,468
+0%

View full ranking →

Celeron B815 Details

As of March 2026, the Intel Celeron B815 remains a relic from an earlier era of mobile computing, based on the Sandy Bridge M microarchitecture and manufactured on a 32 nm process. Though it was designed for entry-level laptops and budget systems, its performance now sits well below modern standards, reflecting its age and limited capabilities. With a release price of $86, the B815 was positioned as a low-cost, energy-efficient option for basic productivity and multimedia tasks, but its real-world performance today reveals significant limitations in both single-core and multi-threaded workloads.

The Celeron B815 features two physical cores and two threads, running at a base frequency of 1.6 GHz with no Turbo Boost capability. It is built on Intel’s Sandy Bridge architecture, which brought improvements in instruction efficiency and integrated graphics, but the B815 lacks advanced features such as Hyper-Threading, making it less competitive in multitasking scenarios. The processor supports up to 16 GB of DDR3-1333 memory across two channels, with a maximum memory bandwidth of 19.87 GB/s, a modest figure by today’s standards. Its 35 W TDP and rPGA988B package are typical of mobile processors from the early 2010s, emphasizing power efficiency over performance.

Integrated into the B815 is Intel’s HD Graphics (Sandy Bridge), which offers six execution units and a base frequency of 650 MHz, capable of boosting up to 1050 MHz. This GPU supports up to two displays and provides basic graphics performance suitable for office applications, video playback, and casual gaming. However, it lacks support for modern APIs and technologies like DirectX 12, limiting its usefulness in contemporary software.

The Celeron B815 supports a wide range of x86-64 instruction sets, including SSE, AVX, and AES-NI, which enhance multimedia and encryption performance. It also includes Intel’s Enhanced SpeedStep and Intel VT-x virtualization technologies, offering some utility for light virtualization and system management. Despite these features, its overall performance is constrained by its outdated architecture and limited clock speeds.

In benchmark testing, the Celeron B815 achieves an Overall Score of 4202, ranking #1677 of 2060 processors, with a Singlecore Score of 3942 (#1806 of 2060) and a Multicore Score of 4592 (#1099 of 2060). These results place it behind many modern budget and mid-range CPUs, including the Pentium Gold G5420 and Core i3-8121U. While it outperforms older dual-core processors like the Athlon II X3 400e and Core 2 Duo T5870, it falls short of even mid-tier processors from the same era, such as the Core i7-6600U.

In conclusion, the Intel Celeron B815 is best suited for legacy systems or environments where minimal processing power is required. Its performance is adequate for web browsing, document editing, and light multimedia consumption, but it struggles with modern applications, content creation, and multitasking. For users seeking a reliable machine in 2026, alternatives such as modern Celeron or Pentium processors would offer significantly better performance and compatibility with current software.
Frequently Compared

Intel Core i7-6650U 23 views

Intel Xeon Silver 4116 22 views

Intel Core i7-7600U 20 views

Intel Xeon Silver 4116T 18 views

Intel Xeon Silver 4114 17 views

Intel Xeon Silver 4110 17 views

Intel Xeon Silver 4208 17 views

AMD Ryzen 3 PRO 2200GE 16 views

AMD Ryzen 5 PRO 3500U 16 views

AMD Ryzen 9 PRO 3900 14 views

Intel Celeron B815

Main Specifications

Designer: Intel
Name: Celeron B815
Family: Celeron
Series: 800
Model Number: B815
Cores: 2
Threads: 2
Base Frequency: 1600 MHz
Clock Multiplier: 16x (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: $86.00

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: 1050 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 BMI1 BMI2 FMA3 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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