Core 2 Duo T8100 vs Core i7-5820K

Primary details

Comparing Core i7-5820K and Core 2 Duo T8100 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1074	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.07	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Core 2 Duo
Power efficiency	4.19	no data
Architecture codename	Haswell-E (2014)	Penryn (2008−2011)
Release date	1 September 2014 (10 years ago)	10 January 2008 (16 years ago)
Launch price (MSRP)	$410	$209

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-5820K and Core 2 Duo T8100 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	6 (Hexa-Core)	2 (Dual-core)
Threads	12	2
Base clock speed	3.3 GHz	2.1 GHz
Boost clock speed	3.6 GHz	2.1 GHz
Bus rate	0 GT/s	800 MHz
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	3 MB
L3 cache	15 MB (shared)	3 MB L2 Cache
Chip lithography	22 nm	45 nm
Die size	356 mm2	107 mm2
Maximum core temperature	67 °C	105 °C
Number of transistors	2,600 million	410 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-
VID voltage range	no data	1V-1.25V

Compatibility

Information on Core i7-5820K and Core 2 Duo T8100 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	no data
Socket	FCLGA2011	BGA479,PGA478
Power consumption (TDP)	140 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-5820K and Core 2 Duo T8100. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	-
Smart Response	+	no data
Demand Based Switching	-	-
FSB parity	no data	-

Security technologies

Core i7-5820K and Core 2 Duo T8100 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Identity Protection	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-5820K and Core 2 Duo T8100 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-5820K and Core 2 Duo T8100. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	no data
Maximum memory size	64 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	68 GB/s	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-5820K and Core 2 Duo T8100.

PCIe version	3.0	no data
PCI Express lanes	28	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.

---

---

Pros & cons summary

---

Recency	1 September 2014	10 January 2008
Physical cores	6	2
Threads	12	2
Chip lithography	22 nm	45 nm
Power consumption (TDP)	140 Watt	35 Watt

---

Should you still have questions on choice between Core i7-5820K and Core 2 Duo T8100, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---