Pentium 3805U vs Core 2 Duo T5800

Place in the ranking	3019	2678
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Duo	Intel Pentium
Power efficiency	1.05	4.67
Architecture codename	Merom (2006−2008)	Broadwell-U (2015)
Release date	1 October 2008 (16 years ago)	1 March 2015 (9 years ago)
Launch price (MSRP)	no data	$161

Detailed specifications

Core 2 Duo T5800 and Pentium 3805U 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)	2 (Dual-core)
Threads	2	2
Base clock speed	2 GHz	1.9 GHz
Boost clock speed	2 GHz	1.9 GHz
Bus rate	800 MHz	5 GT/s
L1 cache	no data	64K (per core)
L2 cache	2 MB	256K (per core)
L3 cache	2 MB L2 Cache	2 MB (shared)
Chip lithography	65 nm	14 nm
Die size	143 mm²	82 mm²
Maximum core temperature	85 °C	105 °C
Maximum case temperature (TCase)	no data	105 °C
Number of transistors	291 Million	1300 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.075V-1.175V	no data

Compatibility

Information on Core 2 Duo T5800 and Pentium 3805U 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	no data	1
Socket	PPGA478	FCBGA1168
Power consumption (TDP)	35 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T5800 and Pentium 3805U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	no data	+
Thermal Monitoring	-	+
Flex Memory Access	no data	+
Smart Response	no data	-
Demand Based Switching	-	no data
FDI	no data	+
Fast Memory Access	no data	+
AMT	+	no data
FSB parity	-	no data

Security technologies

Core 2 Duo T5800 and Pentium 3805U technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Secure Key	no data	+
Identity Protection	-	+
OS Guard	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo T5800 and Pentium 3805U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T5800 and Pentium 3805U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR3
Maximum memory size	no data	16 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel HD Graphics for 5th Generation Intel Processors
Quick Sync Video	-	+
Clear Video	no data	+
Graphics max frequency	no data	800 MHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Core 2 Duo T5800 and Pentium 3805U integrated GPUs.

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

Graphics API support

APIs supported by Core 2 Duo T5800 and Pentium 3805U integrated GPUs, sometimes API versions are included.

DirectX

no data

11.2/12

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T5800 and Pentium 3805U.

PCIe version	no data	2.0
PCI Express lanes	no data	12

Synthetic benchmark performance

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

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.

Core 2 Duo T5800 0.39

Pentium 3805U 0.74
+89.7%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Core 2 Duo T5800 622

Pentium 3805U 1178
+89.4%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Core 2 Duo T5800 215

Pentium 3805U 307
+42.8%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Core 2 Duo T5800 341

Pentium 3805U 584
+71.3%

Gaming performance

Pros & cons summary

Performance score	0.39	0.74
Recency	1 October 2008	1 March 2015
Chip lithography	65 nm	14 nm
Power consumption (TDP)	35 Watt	15 Watt

Pentium 3805U has a 89.7% higher aggregate performance score, an age advantage of 6 years, a 364.3% more advanced lithography process, and 133.3% lower power consumption.

The Pentium 3805U is our recommended choice as it beats the Core 2 Duo T5800 in performance tests.

Should you still have questions on choice between Core 2 Duo T5800 and Pentium 3805U, ask them in Comments section, and we shall answer.