i9-11900H vs Pentium 977

Place in the ranking	2684	581
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Pentium	Tiger Lake
Power efficiency	4.01	34.99
Architecture codename	Sandy Bridge (2011−2013)	Tiger Lake-H (2021)
Release date	1 January 2012 (12 years ago)	11 May 2021 (3 years ago)
Launch price (MSRP)	$134	no data

Detailed specifications

Pentium 977 and Core i9-11900H 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)	8 (Octa-Core)
Threads	2	16
Base clock speed	1.4 GHz	2.5 GHz
Boost clock speed	1.4 GHz	4.9 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	8 GT/s
Multiplier	14	no data
L1 cache	64K (per core)	96K (per core)
L2 cache	256K (per core)	1.25 MB (per core)
L3 cache	2 MB (shared)	24 MB (shared)
Chip lithography	32 nm	10 nm SuperFin
Die size	131 mm²	no data
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Pentium 977 and Core i9-11900H 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	FCBGA1787
Power consumption (TDP)	17 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 977 and Core i9-11900H. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	-	+
FMA	+	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
My WiFi	-	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	+
Flex Memory Access	+	+
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	+
FDI	+	no data
Fast Memory Access	+	no data
Deep Learning Boost	-	+

Security technologies

Pentium 977 and Core i9-11900H technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 977 and Core i9-11900H are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 977 and Core i9-11900H. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4
Maximum memory size	16.38 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	21.335 GB/s	51.2 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	Intel® UHD Graphics for 11th Gen Intel® Processors
Quick Sync Video	-	+
Graphics max frequency	1 GHz	1.45 GHz
Execution Units	no data	32

Graphics interfaces

Available interfaces and connections of Pentium 977 and Core i9-11900H integrated GPUs.

Number of displays supported	2	4
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Pentium 977 and Core i9-11900H integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096x2304@60Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	7680x4320@60Hz

Graphics API support

APIs supported by Pentium 977 and Core i9-11900H integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.6

Peripherals

Specifications and connection of peripherals supported by Pentium 977 and Core i9-11900H.

PCIe version	2.0	4.0
PCI Express lanes	16	20

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 0.72

i9-11900H 12.94
+1697%

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

i9-11900H 20560
+1691%

Gaming performance

Pros & cons summary

Performance score	0.72	12.94
Recency	1 January 2012	11 May 2021
Physical cores	2	8
Threads	2	16
Chip lithography	32 nm	10 nm
Power consumption (TDP)	17 Watt	35 Watt

Pentium 977 has 105.9% lower power consumption.

i9-11900H, on the other hand, has a 1697.2% higher aggregate performance score, an age advantage of 9 years, 300% more physical cores and 700% more threads, and a 220% more advanced lithography process.

The Core i9-11900H is our recommended choice as it beats the Pentium 977 in performance tests.

Should you still have questions on choice between Pentium 977 and Core i9-11900H, ask them in Comments section, and we shall answer.