AMD Opteron X2 275 vs Intel Pentium D 820

Comparative analysis of AMD Opteron X2 275 and Intel Pentium D 820 processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Memory, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD Opteron X2 275

Intel Pentium D 820

Differences

Reasons to consider the AMD Opteron X2 275

4.6x more L1 cache, more data can be stored in the L1 cache for quick access later

L1 cache	128 KB vs 28 KB

Reasons to consider the Intel Pentium D 820

Around 27% higher clock speed: 2.8 GHz vs 2.2 GHz
2x more L2 cache, more data can be stored in the L2 cache for quick access later

Maximum frequency	2.8 GHz vs 2.2 GHz
L2 cache	2048 KB vs 1024 KB

Compare benchmarks

CPU 1: AMD Opteron X2 275
CPU 2: Intel Pentium D 820

Name	AMD Opteron X2 275	Intel Pentium D 820
Geekbench 4 - Single Core		179
Geekbench 4 - Multi-Core		307

Compare specifications (specs)

	AMD Opteron X2 275	Intel Pentium D 820
Essentials
Architecture codename	Italy	Smithfield
Launch date	May 2005	May 2005
Place in performance rating	not rated	3292
Vertical segment	Server	Desktop
Processor Number		820
Series		Legacy Intel® Pentium® Processor
Status		Discontinued
Performance
64 bit support
L1 cache	128 KB	28 KB
L2 cache	1024 KB	2048 KB
Manufacturing process technology	90 nm	90 nm
Maximum frequency	2.2 GHz	2.8 GHz
Number of cores	2	2
Transistor count	233 million	230 million
Base frequency		2.80 GHz
Bus Speed		800 MHz FSB
Die size		206 mm2
Front-side bus (FSB)		800 MHz
Maximum core temperature		64.1°C
Number of threads		2
VID voltage range		1.200V-1.400V
Compatibility
Max number of CPUs in a configuration	2	2
Sockets supported	940	PLGA775
Thermal Design Power (TDP)	95 Watt	95 Watt
Low Halogen Options Available
Package Size		37.5mm x 37.5mm
Memory
Supported memory types		DDR1, DDR2, DDR3
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)		32-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)