Intel Celeron 797 vs Intel Celeron B815

Comparative analysis of Intel Celeron 797 and Intel Celeron B815 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Celeron 797

Intel Celeron B815

Differences

Reasons to consider the Intel Celeron 797

2.1x lower typical power consumption: 17 Watt vs 35 Watt

Thermal Design Power (TDP)	17 Watt vs 35 Watt

Reasons to consider the Intel Celeron B815

1 more cores, run more applications at once: 2 vs 1
1 more threads: 2 vs 1
Around 14% higher clock speed: 1.6 GHz vs 1.4 GHz
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 33% more L3 cache; more data can be stored in the L3 cache for quick access later

Number of cores	2 vs 1
Number of threads	2 vs 1
Maximum frequency	1.6 GHz vs 1.4 GHz
L1 cache	64 KB (per core) vs 64 KB
L2 cache	256 KB (per core) vs 256 KB
L3 cache	2048 KB vs 1.5 MB

Compare benchmarks

CPU 1: Intel Celeron 797
CPU 2: Intel Celeron B815

Name	Intel Celeron 797	Intel Celeron B815
PassMark - Single thread mark		705
PassMark - CPU mark		731
Geekbench 4 - Single Core		283
Geekbench 4 - Multi-Core		495

Compare specifications (specs)

	Intel Celeron 797	Intel Celeron B815
Essentials
Architecture codename	Sandy Bridge	Sandy Bridge
Launch date	1 November 2011	1 November 2011
Place in performance rating	not rated	2958
Processor Number	797	B815
Series	Legacy Intel® Celeron® Processor	Legacy Intel® Celeron® Processor
Status	Launched	Launched
Vertical segment	Mobile	Mobile
Performance
64 bit support
Base frequency	1.40 GHz	1.60 GHz
Bus Speed	5 GT/s DMI	5 GT/s DMI
Die size	131 mm	131 mm
L1 cache	64 KB	64 KB (per core)
L2 cache	256 KB	256 KB (per core)
L3 cache	1.5 MB	2048 KB
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	100 °C	100 °C
Maximum frequency	1.4 GHz	1.6 GHz
Number of cores	1	2
Number of threads	1	2
Transistor count	504 million	504 million
Memory
Max memory channels	2	2
Maximum memory bandwidth	21.3 GB/s	21.3 GB/s
Maximum memory size	16 GB	16 GB
Supported memory types	DDR3 1066/1333	DDR3 1066/1333
Graphics
Graphics base frequency	350 MHz	650 MHz
Graphics max dynamic frequency	950 MHz	1.05 GHz
Graphics max frequency	950 MHz	1.05 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel HD Graphics	Intel HD Graphics
Graphics interfaces
CRT
DisplayPort
eDP
HDMI
Number of displays supported	2	2
SDVO
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	31.0mm x 24.0mm (BGA1023)	37.5mmx37.5mm (rPGA988B)
Sockets supported	BGA1023	FCPGA988
Thermal Design Power (TDP)	17 Watt	35 Watt
Peripherals
Max number of PCIe lanes	16	16
PCI Express revision	2.0	2.0
PCIe configurations	1x16, 2x8, 1x8 2x4	1x16, 2x8, 1x8 2x4
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
4G WiMAX Wireless
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® My WiFi technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)