Intel Atom Z515 vs Intel Core 2 Quad Q8400s

Comparative analysis of Intel Atom Z515 and Intel Core 2 Quad Q8400s processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Memory. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Atom Z515

Intel Core 2 Quad Q8400s

Differences

Reasons to consider the Intel Atom Z515

Around 18% higher maximum core temperature: 90°C vs 76.3°C
65x lower typical power consumption: 1.4 Watt vs 65 Watt

Maximum core temperature	90°C vs 76.3°C
Thermal Design Power (TDP)	1.4 Watt vs 65 Watt

Reasons to consider the Intel Core 2 Quad Q8400s

3 more cores, run more applications at once: 4 vs 1
Around 123% higher clock speed: 2.67 GHz vs 1.2 GHz
4x more L1 cache, more data can be stored in the L1 cache for quick access later
8x more L2 cache, more data can be stored in the L2 cache for quick access later

Number of cores	4 vs 1
Maximum frequency	2.67 GHz vs 1.2 GHz
L1 cache	256 KB vs 64 KB (per core)
L2 cache	4096 KB vs 512 KB (per core)

Compare benchmarks

CPU 1: Intel Atom Z515
CPU 2: Intel Core 2 Quad Q8400s

Name	Intel Atom Z515	Intel Core 2 Quad Q8400s
PassMark - Single thread mark	0
PassMark - CPU mark	218

Compare specifications (specs)

	Intel Atom Z515	Intel Core 2 Quad Q8400s
Essentials
Architecture codename	Silverthorne	Yorkfield
Launch date	April 2009	April 2009
Place in performance rating	3336	not rated
Processor Number	Z515	Q8400S
Series	Legacy Intel Atom® Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Mobile	Desktop
Performance
Base frequency	1.20 GHz	2.66 GHz
Bus Speed	400 MHz FSB	1333 MHz FSB
Die size	26 mm2	164 mm2
L1 cache	64 KB (per core)	256 KB
L2 cache	512 KB (per core)	4096 KB
Manufacturing process technology	45 nm	45 nm
Maximum core temperature	90°C	76.3°C
Maximum frequency	1.2 GHz	2.67 GHz
Number of cores	1	4
Transistor count	47 million	456 million
64 bit support
Maximum case temperature (TCase)		76 °C
VID voltage range		0.8500V-1.3625V
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	13mm x 14mm	37.5mm x 37.5mm
Sockets supported	PBGA441	LGA775
Thermal Design Power (TDP)	1.4 Watt	65 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Intel® AES New Instructions
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Memory
Supported memory types		DDR1, DDR2, DDR3