Athlon II X4 640 vs i7-7820X

Primary details

Comparing Core i7-7820X and Athlon II X4 640 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	714	2198
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.38	2.92
Market segment	Desktop processor	Desktop processor
Series	Intel Core i7	no data
Power efficiency	7.31	1.40
Architecture codename	Skylake (server) (2017−2018)	Propus (2009−2011)
Release date	26 June 2017 (7 years ago)	11 May 2010 (14 years ago)
Launch price (MSRP)	$599	$80

Cost-effectiveness evaluation

Performance per price, higher is better.

i7-7820X has 16% better value for money than Athlon II X4 640.

Detailed specifications

Core i7-7820X and Athlon II X4 640 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	8 (Octa-Core)	4 (Quad-Core)
Threads	16	4
Base clock speed	3.6 GHz	3 GHz
Boost clock speed	4.5 GHz	3 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	36	no data
L1 cache	64 KB (per core)	128 KB (per core)
L2 cache	1 MB (per core)	512 KB (per core)
L3 cache	11 MB (shared)	0 KB
Chip lithography	14 nm	45 nm
Die size	no data	169 mm2
Maximum core temperature	99 °C	no data
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	no data	300 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	-

Compatibility

Information on Core i7-7820X and Athlon II X4 640 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	FCLGA2066	AM3
Power consumption (TDP)	140 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7820X and Athlon II X4 640. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Turbo Boost Max 3.0	+	no data

Security technologies

Core i7-7820X and Athlon II X4 640 technologies aimed at improving security, for example, by protecting against hacks.

EDB

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7820X and Athlon II X4 640 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7820X and Athlon II X4 640. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR3
Maximum memory size	128 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	85.33 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Core i7-7820X and Athlon II X4 640.

PCIe version	3.0	2.0
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.

---

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.

---

Pros & cons summary

---

Performance score	10.81	1.41
Recency	26 June 2017	11 May 2010
Physical cores	8	4
Threads	16	4
Chip lithography	14 nm	45 nm
Power consumption (TDP)	140 Watt	95 Watt

---

Should you still have questions on choice between Core i7-7820X and Athlon II X4 640, 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.

---