Ryzen 5 PRO 4650G vs Pentium 977

Place in the ranking	2676	754
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Pentium	AMD Ryzen 5
Power efficiency	4.02	14.81
Architecture codename	Sandy Bridge (2011−2013)	Renoir (2020−2023)
Release date	16 January 2012 (12 years ago)	21 July 2020 (4 years ago)
Launch price (MSRP)	$134	no data

Detailed specifications

Pentium 977 and Ryzen 5 PRO 4650G 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)	6 (Hexa-Core)
Threads	2	12
Base clock speed	1.4 GHz	3.7 GHz
Boost clock speed	1.4 GHz	4.2 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	no data
Multiplier	14	37
L1 cache	128 KB	64 KB (per core)
L2 cache	512 KB	512 KB (per core)
L3 cache	2 MB (shared)	8 MB (shared)
Chip lithography	32 nm	7 nm
Die size	131 mm²	156 mm²
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	504 million	9,800 million
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Pentium 977 and Ryzen 5 PRO 4650G 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	FCBGA1023	AM4
Power consumption (TDP)	17 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 977 and Ryzen 5 PRO 4650G. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	-	+
FMA	+	-
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
My WiFi	-	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Pentium 977 and Ryzen 5 PRO 4650G technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 977 and Ryzen 5 PRO 4650G 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 Pentium 977 and Ryzen 5 PRO 4650G. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-3200
Maximum memory size	16.38 GB	128 GB
Max memory channels	2	no data
Maximum memory bandwidth	21.335 GB/s	51.196 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	AMD Radeon Vega 7
Graphics max frequency	1 GHz	no data

Graphics interfaces

Available interfaces and connections of Pentium 977 and Ryzen 5 PRO 4650G integrated GPUs.

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

Peripherals

Specifications and connection of peripherals supported by Pentium 977 and Ryzen 5 PRO 4650G.

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.

Pentium 977 0.75

Ryzen 5 PRO 4650G 10.56
+1308%

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.

Pentium 977 1148

Ryzen 5 PRO 4650G 16164
+1308%

Gaming performance

Pros & cons summary

Performance score	0.75	10.56
Recency	16 January 2012	21 July 2020
Physical cores	2	6
Threads	2	12
Chip lithography	32 nm	7 nm
Power consumption (TDP)	17 Watt	65 Watt

Pentium 977 has 282.4% lower power consumption.

Ryzen 5 PRO 4650G, on the other hand, has a 1308% higher aggregate performance score, an age advantage of 8 years, 200% more physical cores and 500% more threads, and a 357.1% more advanced lithography process.

The Ryzen 5 PRO 4650G is our recommended choice as it beats the Pentium 977 in performance tests.

Be aware that Pentium 977 is a notebook processor while Ryzen 5 PRO 4650G is a desktop one.

Should you still have questions on choice between Pentium 977 and Ryzen 5 PRO 4650G, ask them in Comments section, and we shall answer.