Intel Core i9-9920X vs AMD Phenom II X2 B55

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CPU comparison with benchmarks


Intel Core i9-9920X CPU1 vs CPU2 AMD Phenom II X2 B55
Intel Core i9-9920X AMD Phenom II X2 B55

CPU comparison

Intel Core i9-9920X or AMD Phenom II X2 B55 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core i9-9920X has 12 cores with 24 threads and clocks with a maximum frequency of 4.50 GHz. Up to 128 GB of memory is supported in 4 memory channels. The Intel Core i9-9920X was released in Q4/2018.

The AMD Phenom II X2 B55 has 2 cores with 2 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Phenom II X2 B55 was released in Q4/2009.
Intel Core i9 (78) Family AMD Phenom II (52)
Intel Core i 9000X (8) CPU group AMD Phenom II - 545 (9)
9 Generation 2
Skylake X Refresh Architecture Callisto (K10)
Desktop / Server Segment Desktop / Server
Intel Core i9-7920X Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core i9-9920X has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the Intel Core i9-9920X is 3.50 GHz (4.50 GHz) while the AMD Phenom II X2 B55 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD Phenom II X2 B55 is at 3.00 GHz.

Intel Core i9-9920X Characteristic AMD Phenom II X2 B55
12 Cores 2
24 Threads 2
normal Core architecture normal
Yes Hyperthreading No
Yes Overclocking ? Yes
3.50 GHz Frequency 3.00 GHz
4.50 GHz Turbo Frequency (1 Core) --
4.30 GHz Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

Intel Core i9-9920X Characteristic AMD Phenom II X2 B55
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The Intel Core i9-9920X or AMD Phenom II X2 B55 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

no iGPU GPU no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

The Intel Core i9-9920X can use up to 128 GB of memory in 4 memory channels. The maximum memory bandwidth is 85.4 GB/s. The AMD Phenom II X2 B55 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s.

Intel Core i9-9920X Characteristic AMD Phenom II X2 B55
DDR4-2666 Memory DDR3-1333, DDR2-1066
128 GB Max. Memory
4 (Quad Channel) Memory channels 2 (Dual Channel)
85.4 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
-- L2 Cache --
19.00 MB L3 Cache 6.00 MB
3.0 PCIe version --
44 PCIe lanes --
43.3 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Core i9-9920X is 165 W, while the AMD Phenom II X2 B55 has a TDP of 80 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core i9-9920X Characteristic AMD Phenom II X2 B55
165 W TDP (PL1 / PBP) 80 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
92 °C Tjunction max. --

Technical details

The Intel Core i9-9920X is manufactured in 14 nm and has 19.00 MB cache. The AMD Phenom II X2 B55 is manufactured in 45 nm and has a 6.00 MB cache.

Intel Core i9-9920X Characteristic AMD Phenom II X2 B55
14 nm Technology 45 nm
Monolithic Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE3, SSE4a
LGA 2066 Socket AM3
VT-x, VT-x EPT, VT-d Virtualization AMD-V
Yes AES-NI No
Windows 10, Windows 11, Linux Operating systems Windows 10, Linux
Q4/2018 Release date Q4/2009
1189 $ Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core i9-9920X (100%)
AMD Phenom II X2 B55 (40%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Core i9-9920X (100%)
AMD Phenom II X2 B55 (8%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.30 GHz
25301 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
1931 (8%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.50 GHz
197 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
79 (40%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.30 GHz
2245 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
152 (7%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.50 GHz
1174 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.30 GHz
12763 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.50 GHz
1459 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.30 GHz
10211 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.50 GHz
455 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.30 GHz
5179 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 4.30 GHz
138 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i9-9920X Intel Core i9-9920X
12C 24T @ 3.50 GHz
6483 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

Devices using this processor

Intel Core i9-9920X AMD Phenom II X2 B55
Unknown Unknown

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