Core 2 Quad Q8400 vs Pentium Silver J5040

Primary details

Comparing Pentium Silver J5040 and Core 2 Quad Q8400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1908	2281
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.10	no data
Market segment	Desktop processor	Desktop processor
Power efficiency	19.40	1.30
Architecture codename	Gemini Lake Refresh (2019)	Yorkfield (2007−2009)
Release date	4 November 2019 (5 years ago)	19 April 2009 (15 years ago)
Launch price (MSRP)	$161	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium Silver J5040 and Core 2 Quad Q8400 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	4 (Quad-Core)
Threads	4	4
Base clock speed	2 GHz	2.66 GHz
Boost clock speed	3.2 GHz	0.67 GHz
Bus rate	no data	1333 MHz
L1 cache	56 KB (per core)	64 KB (per core)
L2 cache	4 MB (shared)	4 MB (shared)
L3 cache	4 MB	0 KB
Chip lithography	14 nm	45 nm
Die size	93 mm2	2x 82 mm2
Maximum core temperature	105 °C	no data
Maximum case temperature (TCase)	no data	71 °C
Number of transistors	no data	456 million
64 bit support	+	+
Windows 11 compatibility	+	-
VID voltage range	no data	0.85V-1.3625V

Compatibility

Information on Pentium Silver J5040 and Core 2 Quad Q8400 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCBGA1090	FCLGA775,LGA775
Power consumption (TDP)	10 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium Silver J5040 and Core 2 Quad Q8400. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	+	-
Enhanced SpeedStep (EIST)	+	+
Speed Shift	-	no data
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Smart Response	-	no data
Demand Based Switching	no data	-
GPIO	+	no data
Turbo Boost Max 3.0	-	no data
FSB parity	no data	-

Security technologies

Pentium Silver J5040 and Core 2 Quad Q8400 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	-
EDB	+	+
Secure Key	+	no data
MPX	+	-
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium Silver J5040 and Core 2 Quad Q8400 are enumerated here.

VT-d	+	no data
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium Silver J5040 and Core 2 Quad Q8400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR1, DDR2, DDR3
Maximum memory size	8 GB	no data
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 605	On certain motherboards (Chipset feature)
Max video memory	8 GB	no data
Quick Sync Video	+	-
Graphics max frequency	800 MHz	no data
Execution Units	18	no data

Graphics interfaces

Available interfaces and connections of Pentium Silver J5040 and Core 2 Quad Q8400 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
MIPI-DSI	+	no data

Graphics image quality

Maximum display resolutions supported by Pentium Silver J5040 and Core 2 Quad Q8400 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2160@30Hz	no data
Max resolution over eDP	4096x2160@60Hz	no data
Max resolution over DisplayPort	4096x2160@60Hz	no data

Graphics API support

APIs supported by Pentium Silver J5040 and Core 2 Quad Q8400 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.4	no data

Peripherals

Specifications and connection of peripherals supported by Pentium Silver J5040 and Core 2 Quad Q8400.

PCIe version	2.0	2.0
PCI Express lanes	6	no data
USB revision	2.0/3.0	no data
Total number of SATA ports	2	no data
Max number of SATA 6 Gb/s Ports	2	no data
Number of USB ports	8	no data
Integrated LAN	-	no data
UART	+	no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	2.05	1.30
Recency	4 November 2019	19 April 2009
Chip lithography	14 nm	45 nm
Power consumption (TDP)	10 Watt	95 Watt

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Should you still have questions on choice between Pentium Silver J5040 and Core 2 Quad Q8400, ask them in Comments section, and we shall answer.

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