AMD Phenom II X3 B77 vs Intel Core Ultra 5 135U

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CPU comparison with benchmarks


AMD Phenom II X3 B77 CPU1 vs CPU2 Intel Core Ultra 5 135U
AMD Phenom II X3 B77 Intel Core Ultra 5 135U

CPU comparison

AMD Phenom II X3 B77 or Intel Core Ultra 5 135U - 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 AMD Phenom II X3 B77 has 3 cores with 3 threads and clocks with a maximum frequency of 3.20 GHz. Up to GB of memory is supported in 2 memory channels. The AMD Phenom II X3 B77 was released in Q2/2010.

The Intel Core Ultra 5 135U has 12 cores with 14 threads and clocks with a maximum frequency of 4.40 GHz. The CPU supports up to 96 GB of memory in 2 memory channels. The Intel Core Ultra 5 135U was released in Q4/2023.
AMD Phenom II (52) Family Intel Core Ultra 5 (10)
AMD Phenom II - 700 (9) CPU group Intel Core Ultra 100U (7)
3 Generation 1
Heka (K10) Architecture Meteor Lake U
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Phenom II X3 B77 is a 3 core processor with a clock frequency of 3.20 GHz. The Intel Core Ultra 5 135U has 12 CPU cores with a clock frequency of 1.60 GHz (4.40 GHz).
AMD Phenom II X3 B77 Characteristic Intel Core Ultra 5 135U
3 Cores 12
3 Threads 14
normal Core architecture hybrid (big.LITTLE)
No Hyperthreading Yes
Yes Overclocking ? No
3.20 GHz A-Core 1.60 GHz (4.40 GHz)
2x Redwood Cove
-- B-Core 1.10 GHz (3.60 GHz)
8x Crestmont
-- C-Core 0.70 GHz (2.10 GHz)
2x Crestmont

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.
AMD Phenom II X3 B77 Characteristic Intel Core Ultra 5 135U
-- AI hardware Intel® AI Boost
-- AI specifications Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT)
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
no iGPU GPU Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)
GPU frequency 0.60 GHz
-- GPU (Turbo) 1.90 GHz
-- GPU Generation --
Technology 5 nm
Max. displays 4
-- Compute units 64
-- Shader 512
No Hardware Raytracing Yes
No Frame Generation No
-- Max. GPU Memory 32 GB
-- DirectX Version 12.2

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 Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
No Codec h264 Decode / Encode
No Codec VP9 Decode
No Codec VP8 Decode
No Codec AV1 Decode / Encode
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The AMD Phenom II X3 B77 supports a maximum of GB of memory in 2 memory channels. The Intel Core Ultra 5 135U can connect up to 96 GB of memory in 2 memory channels.
AMD Phenom II X3 B77 Characteristic Intel Core Ultra 5 135U
DDR3-1333, DDR2-1066 Memory LPDDR5X-7500, DDR5-5600
Max. Memory 96 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 120.0 GB/s
No ECC No
-- L2 Cache 12.00 MB
6.00 MB L3 Cache --
-- PCIe version 4.0
-- PCIe lanes 20
-- PCIe Bandwidth 39.4 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Phenom II X3 B77 has a TDP of 95 W, that of the Intel Core Ultra 5 135U is 15 W.
AMD Phenom II X3 B77 Characteristic Intel Core Ultra 5 135U
95 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) 57 W
-- TDP up 28 W
-- TDP down 12 W
-- Tjunction max. 110 °C

Technical details

The AMD Phenom II X3 B77 has a 6.00 MB cache, while the Intel Core Ultra 5 135U cache has a total of 12.00 MB.
AMD Phenom II X3 B77 Characteristic Intel Core Ultra 5 135U
45 nm Technology 7 nm
Unknown Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE3, SSE4a ISA extensions SSE4.1, SSE4.2, AVX2
AM3 Socket BGA 2049
AMD-V Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Windows 10, Linux Operating systems Windows 11, Linux
Q2/2010 Release date Q4/2023
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Phenom II X3 B77 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the Intel Core Ultra 5 135U to help other visitors make their purchasing decisions. The average rating is 4.3 stars (3 ratings). Rate now:


iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD Phenom II X3 B77 AMD Phenom II X3 B77
@ 0.00 GHz
0 (0%)
Intel Core Ultra 5 135U Intel Core Ultra 5 135U
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 1.90 GHz
1885 (100%)

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.
AMD Phenom II X3 B77 AMD Phenom II X3 B77
3C 3T @ 3.20 GHz
3213 (100%)
Intel Core Ultra 5 135U Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz
0 (0%)

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.
AMD Phenom II X3 B77 AMD Phenom II X3 B77
3C 3T @ 3.20 GHz
84 (100%)
Intel Core Ultra 5 135U Intel Core Ultra 5 135U
12C 14T @ 4.40 GHz
0 (0%)

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.
AMD Phenom II X3 B77 AMD Phenom II X3 B77
3C 3T @ 3.20 GHz
243 (100%)
Intel Core Ultra 5 135U Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz
0 (0%)

Devices using this processor
AMD Phenom II X3 B77 Intel Core Ultra 5 135U
Unknown Unknown

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