Pentium 6805 vs i7-2820QM

Place in the ranking	1695	1692
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	no data
Power efficiency	5.83	17.60
Architecture codename	Sandy Bridge (2011−2013)	Ice Lake-Y (2020)
Release date	3 January 2011 (13 years ago)	1 October 2020 (4 years ago)
Launch price (MSRP)	$568	$161

Detailed specifications

Core i7-2820QM and Pentium 6805 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)	2 (Dual-core)
Threads	8	4
Base clock speed	2.3 GHz	1.1 GHz
Boost clock speed	3.4 GHz	3 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	no data
Multiplier	23	no data
L1 cache	64K (per core)	80 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	8 MB (shared)	4 MB (shared)
Chip lithography	32 nm	10 nm
Die size	216 mm²	123 mm²
Maximum core temperature	100 °C	100 °C
Number of transistors	1,160 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Core i7-2820QM and Pentium 6805 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 (Uniprocessor)	1
Socket	FCBGA1224,FCPGA988,PPGA988	FCBGA1526
Power consumption (TDP)	45 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-2820QM and Pentium 6805. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	no data
AES-NI	+	+
FMA	+	-
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Core i7-2820QM and Pentium 6805 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-2820QM and Pentium 6805 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-2820QM and Pentium 6805. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1066, DDR3-1333, DDR3-1600	DDR4-3200, LPDDR4-3733
Maximum memory size	32 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	25.598 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 3000	Intel UHD Graphics for 10th Gen Intel Processors
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.3 GHz	850 MHz
Execution Units	no data	32
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-2820QM and Pentium 6805 integrated GPUs.

Number of displays supported	2	3
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
SDVO	+	no data
CRT	+	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-2820QM and Pentium 6805.

PCIe version	2.0	3.0
PCI Express lanes	16	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.

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.

i7-2820QM 2.77

Pentium 6805 2.79
+0.7%

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.

i7-2820QM 4395

Pentium 6805 4424
+0.7%

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.

i7-2820QM 519

Pentium 6805 1194
+130%

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.

i7-2820QM 1624

Pentium 6805 2168
+33.5%

Gaming performance

Pros & cons summary

Performance score	2.77	2.79
Integrated graphics card	0.66	5.58
Recency	3 January 2011	1 October 2020
Physical cores	4	2
Threads	8	4
Chip lithography	32 nm	10 nm
Power consumption (TDP)	45 Watt	15 Watt

i7-2820QM has 100% more physical cores and 100% more threads.

Pentium 6805, on the other hand, has a 0.7% higher aggregate performance score, 745.5% faster integrated GPU, an age advantage of 9 years, a 220% more advanced lithography process, and 200% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core i7-2820QM and Pentium 6805.

Should you still have questions on choice between Core i7-2820QM and Pentium 6805, ask them in Comments section, and we shall answer.