Xeon E3-1205 v6 vs Pentium 3805U

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2951	1766
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.04	0.82
Market segment	Laptop	Server
Series	Intel Pentium	Intel Xeon E3
Power efficiency	no data	5.31
Designer	Intel	Intel
Manufacturer	Intel	no data
Architecture codename	Broadwell-U (2015)	Kaby Lake (2016−2019)
Release date	1 March 2015 (10 years ago)	28 March 2017 (8 years ago)
Launch price (MSRP)	$161	$193

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E3-1205 v6 has 1950% better value for money than Pentium 3805U.

Performance to price scatter graph

Detailed specifications

Pentium 3805U and Xeon E3-1205 v6 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	2 (Dual-core)	4 (Quad-Core)
Threads	2	4
Base clock speed	1.9 GHz	3 GHz
Boost clock speed	1.9 GHz	3 GHz
Bus type	no data	DMI 3.0
Bus rate	5 GT/s	8 GT/s
Multiplier	no data	30
L1 cache	64K (per core)	256 KB
L2 cache	256K (per core)	1 MB
L3 cache	2 MB (shared)	8 MB
Chip lithography	14 nm	14 nm
Die size	82 mm2	no data
Maximum core temperature	105 °C	no data
Maximum case temperature (TCase)	105 °C	no data
Number of transistors	1300 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	0.55V-1.52V

Compatibility

Information on Pentium 3805U and Xeon E3-1205 v6 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 (Uniprocessor)
Socket	FCBGA1168	FCLGA1151
Power consumption (TDP)	15 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 3805U and Xeon E3-1205 v6. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	-
TSX	-	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Smart Response	-	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Pentium 3805U and Xeon E3-1205 v6 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	no data	+
MPX	-	+
Identity Protection	+	-
SGX	no data	Yes with both Intel® SPS and Intel® ME
OS Guard	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 3805U and Xeon E3-1205 v6 are enumerated here.

AMD-V	+	-
VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 3805U and Xeon E3-1205 v6. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-2400, DDR3L-1866
Maximum memory size	16 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	38.397 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare HD Graphics P630 and HD Graphics	Intel HD Graphics for 5th Generation Intel Processors	Intel HD Graphics P630
Max video memory	no data	1.7 GB
Quick Sync Video	+	+
Clear Video	+	+
Clear Video HD	-	+
Graphics max frequency	800 MHz	1 GHz
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Pentium 3805U and Xeon E3-1205 v6 integrated GPUs.

Number of displays supported	3	3
eDP	+	+
DisplayPort	+	+
HDMI	+	+
DVI	no data	+

Graphics image quality

Maximum display resolutions supported by Pentium 3805U and Xeon E3-1205 v6 integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2160@24Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	4096x2304@60Hz
Max resolution over VGA	no data	N/A

Graphics API support

APIs supported by Pentium 3805U and Xeon E3-1205 v6 integrated GPUs, sometimes API versions are included.

DirectX	11.2/12	12
OpenGL	no data	4.4

Peripherals

Specifications and connection of peripherals supported by Pentium 3805U and Xeon E3-1205 v6.

PCIe version	2.0	3.0
PCI Express lanes	12	16

Synthetic benchmarks

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.

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Pros & cons summary

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Performance score	0.68	3.22
Integrated graphics card	0.72	2.85
Recency	1 March 2015	28 March 2017
Physical cores	2	4
Threads	2	4
Power consumption (TDP)	15 Watt	65 Watt

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