Intel Celeron B815 vs Intel Core 2 Duo T5870

Comparative analysis of Intel Celeron B815 and Intel Core 2 Duo T5870 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 B815

Intel Core 2 Duo T5870

Differences

Reasons to consider the Intel Celeron B815

CPU is newer: launch date 3 year(s) 1 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 65 nm
Around 5% better performance in PassMark - CPU mark: 731 vs 698
Around 13% better performance in Geekbench 4 - Single Core: 283 vs 250
Around 15% better performance in Geekbench 4 - Multi-Core: 495 vs 429

Specifications (specs)
Launch date	1 November 2011 vs 1 October 2008
Manufacturing process technology	32 nm vs 65 nm
Benchmarks
PassMark - CPU mark	731 vs 698
Geekbench 4 - Single Core	283 vs 250
Geekbench 4 - Multi-Core	495 vs 429

Reasons to consider the Intel Core 2 Duo T5870

Around 25% higher clock speed: 2 GHz vs 1.6 GHz
4x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 5% better performance in PassMark - Single thread mark: 740 vs 705

Specifications (specs)
Maximum frequency	2 GHz vs 1.6 GHz
L2 cache	2048 KB vs 256 KB (per core)
Benchmarks
PassMark - Single thread mark	740 vs 705

Compare benchmarks

CPU 1: Intel Celeron B815
CPU 2: Intel Core 2 Duo T5870

PassMark - Single thread mark

CPU 1

CPU 2

705

740

PassMark - CPU mark

CPU 1

CPU 2

731

698

Geekbench 4 - Single Core

CPU 1

CPU 2

283

250

Geekbench 4 - Multi-Core

CPU 1

CPU 2

495

429

Name	Intel Celeron B815	Intel Core 2 Duo T5870
PassMark - Single thread mark	705	740
PassMark - CPU mark	731	698
Geekbench 4 - Single Core	283	250
Geekbench 4 - Multi-Core	495	429

Compare specifications (specs)

	Intel Celeron B815	Intel Core 2 Duo T5870
Essentials
Architecture codename	Sandy Bridge	Merom
Launch date	1 November 2011	1 October 2008
Place in performance rating	2959	2970
Processor Number	B815	T5870
Series	Legacy Intel® Celeron® Processor	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Mobile
Performance
64 bit support
Base frequency	1.60 GHz	2.00 GHz
Bus Speed	5 GT/s DMI	800 MHz FSB
Die size	131 mm	143 mm2
L1 cache	64 KB (per core)
L2 cache	256 KB (per core)	2048 KB
L3 cache	2048 KB
Manufacturing process technology	32 nm	65 nm
Maximum core temperature	100 °C	100°C
Maximum frequency	1.6 GHz	2 GHz
Number of cores	2	2
Number of threads	2	2
Transistor count	504 million	291 million
Front-side bus (FSB)		800 MHz
VID voltage range		1.075V-1.175V
Memory
Max memory channels	2
Maximum memory bandwidth	21.3 GB/s
Maximum memory size	16 GB
Supported memory types	DDR3 1066/1333
Graphics
Graphics base frequency	650 MHz
Graphics max dynamic frequency	1.05 GHz
Graphics max frequency	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
Graphics interfaces
CRT
DisplayPort
eDP
HDMI
Number of displays supported	2
SDVO
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1
Package Size	37.5mmx37.5mm (rPGA988B)	35mm x 35mm
Sockets supported	FCPGA988
Thermal Design Power (TDP)	35 Watt	35 Watt
Peripherals
Max number of PCIe lanes	16
PCI Express revision	2.0
PCIe configurations	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 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
FSB parity
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)