PRO A12-9800B vs Xeon X5647

Primary details

Comparing Xeon X5647 and PRO A12-9800B processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1673	2045
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.61	no data
Market segment	Server	Laptop
Series	no data	AMD Bristol Ridge
Power efficiency	2.04	10.71
Architecture codename	Westmere-EP (2010−2011)	Bristol Ridge (2016−2019)
Release date	14 February 2011 (13 years ago)	1 June 2016 (8 years ago)
Launch price (MSRP)	$175	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon X5647 and PRO A12-9800B 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	8	4
Base clock speed	2.93 GHz	2.7 GHz
Boost clock speed	3.2 GHz	3.6 GHz
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	2048 KB
L3 cache	12 MB (shared)	no data
Chip lithography	32 nm	28 nm
Die size	239 mm2	250 mm2
Maximum core temperature	80 °C	90 °C
Number of transistors	1,170 million	3100 Million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon X5647 and PRO A12-9800B 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	2	no data
Socket	FCLGA1366,LGA1366	FP4
Power consumption (TDP)	130 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X5647 and PRO A12-9800B. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	+	+
FMA	-	FMA4
AVX	-	AVX
FRTC	-	+
FreeSync	-	+
PowerTune	-	+
DualGraphics	-	+
TrueAudio	-	+
PowerNow	-	+
PowerGating	-	+
Out-of-band client management	-	+
VirusProtect	-	+
RAID	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Demand Based Switching	+	no data
PAE	40 Bit	no data

Security technologies

Xeon X5647 and PRO A12-9800B technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon X5647 and PRO A12-9800B are enumerated here.

AMD-V	-	+
VT-d	+	no data
VT-x	+	no data
EPT	+	no data
IOMMU 2.0	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X5647 and PRO A12-9800B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3, DDR4
Maximum memory size	288 GB	no data
Max memory channels	3	2
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	AMD Radeon R7 Graphics
iGPU core count	no data	8
Enduro	-	+
Switchable graphics	-	+
UVD	-	+
VCE	-	+

Graphics interfaces

Available interfaces and connections of Xeon X5647 and PRO A12-9800B integrated GPUs.

DisplayPort	-	+
HDMI	-	+

Graphics API support

APIs supported by Xeon X5647 and PRO A12-9800B integrated GPUs, sometimes API versions are included.

DirectX	no data	DirectX® 12
Vulkan	-	+

Peripherals

Specifications and connection of peripherals supported by Xeon X5647 and PRO A12-9800B.

PCIe version	2.0	3.0
PCI Express lanes	no data	8

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	2.85	1.73
Recency	14 February 2011	1 June 2016
Threads	8	4
Chip lithography	32 nm	28 nm
Power consumption (TDP)	130 Watt	15 Watt

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Should you still have questions on choice between Xeon X5647 and PRO A12-9800B, ask them in Comments section, and we shall answer.

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