Pentium D 820 vs Ryzen 5 1400

Primary details

Comparing Ryzen 5 1400 and Pentium D 820 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1235	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.65	no data
Market segment	Desktop processor	Desktop processor
Series	AMD Ryzen 5	Pentium D
Power efficiency	7.11	no data
Architecture codename	Zen (2017−2020)	Smithfield (2005)
Release date	11 April 2017 (7 years ago)	May 2005 (19 years ago)
Launch price (MSRP)	$169	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 5 1400 and Pentium D 820 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	2
Base clock speed	3.2 GHz	2.8 GHz
Boost clock speed	3.4 GHz	2.8 GHz
Bus rate	4 × 8 GT/s	800 MHz
Multiplier	32	no data
L1 cache	96K (per core)	28 KB
L2 cache	512K (per core)	2 MB
L3 cache	8 MB (shared)	0 KB
Chip lithography	14 nm	90 nm
Die size	192 mm2	206 mm2
Maximum core temperature	no data	64 °C
Number of transistors	4,800 million	169 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-
VID voltage range	no data	1.2V-1.4V

Compatibility

Information on Ryzen 5 1400 and Pentium D 820 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)	2
Socket	AM4	PLGA775
Power consumption (TDP)	65 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 5 1400 and Pentium D 820. You'll probably need this information if you require some particular technology.

Instruction set extensions	XFR, FMA3, SSE 4.2, AVX2, SMT	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	no data	-
Turbo Boost Technology	no data	-
Hyper-Threading Technology	no data	-
Idle States	no data	+
Demand Based Switching	no data	-
PAE	no data	32 Bit
FSB parity	no data	-

Security technologies

Ryzen 5 1400 and Pentium D 820 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	-
EDB	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 5 1400 and Pentium D 820 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 5 1400 and Pentium D 820. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR1, DDR2, DDR3
Maximum memory size	64 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	42.671 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Ryzen 5 1400 and Pentium D 820.

PCIe version	3.0	no data
PCI Express lanes	20	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

---

Physical cores	4	2
Threads	8	2
Chip lithography	14 nm	90 nm
Power consumption (TDP)	65 Watt	95 Watt

---

Should you still have questions on choice between Ryzen 5 1400 and Pentium D 820, 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.

---