AMD Ryzen 9 4900U | Apple M1 Ultra (48-GPU) | |
CPU comparisonAMD Ryzen 9 4900U or Apple M1 Ultra (48-GPU) - 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 Ryzen 9 4900U has 8 cores with 16 threads and clocks with a maximum frequency of 4.40 GHz. Up to 64 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 4900U was released in Q1/2020. The Apple M1 Ultra (48-GPU) has 20 cores with 20 threads and clocks with a maximum frequency of 3.20 GHz. The CPU supports up to 128 GB of memory in 8 memory channels. The Apple M1 Ultra (48-GPU) was released in Q1/2022. |
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AMD Ryzen 9 (40) | Family | Apple M series (25) |
AMD Ryzen 4000U (11) | CPU group | Apple M1 (9) |
3 | Generation | 1 |
Renoir (Zen 2) | Architecture | M1 |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | Apple M2 Ultra (60-GPU) |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 4900U has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 9 4900U is 2.00 GHz (4.40 GHz) while the Apple M1 Ultra (48-GPU) has 20 CPU cores and 20 threads can calculate simultaneously. The clock frequency of the Apple M1 Ultra (48-GPU) is at 0.60 GHz (3.20 GHz). |
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AMD Ryzen 9 4900U | Characteristic | Apple M1 Ultra (48-GPU) |
8 | Cores | 20 |
16 | Threads | 20 |
normal | Core architecture | hybrid (big.LITTLE) |
Yes | Hyperthreading | No |
No | Overclocking ? | No |
2.00 GHz (4.40 GHz) | A-Core | 0.60 GHz (3.20 GHz) 16x Firestorm |
-- | B-Core | 0.60 GHz (2.06 GHz) 4x Icestorm |
NPU AI performanceThe 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. |
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AMD Ryzen 9 4900U | Characteristic | Apple M1 Ultra (48-GPU) |
-- | AI hardware | Apple Neural Engine |
-- | AI specifications | 32 Neural cores @ 22 TOPS |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The AMD Ryzen 9 4900U or Apple M1 Ultra (48-GPU) 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. |
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AMD Radeon RX Vega 8 (Renoir) | GPU | Apple M1 Ultra (48 Core) |
0.40 GHz | GPU frequency | 0.39 GHz |
1.75 GHz | GPU (Turbo) | 1.30 GHz |
9 | GPU Generation | 1 |
7 nm | Technology | 5 nm |
3 | Max. displays | 5 |
8 | Compute units | 768 |
512 | Shader | 6144 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
8 GB | Max. GPU Memory | 64 GB |
12 | DirectX Version | -- |
Hardware codec supportA 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. |
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AMD Radeon RX Vega 8 (Renoir) | GPU | Apple M1 Ultra (48 Core) |
Decode / Encode | Codec h265 / HEVC (8 bit) | Decode / Encode |
Decode / Encode | Codec h265 / HEVC (10 bit) | Decode / Encode |
Decode / Encode | Codec h264 | Decode / Encode |
Decode / Encode | Codec VP9 | Decode / Encode |
Decode / Encode | Codec VP8 | Decode |
No | Codec AV1 | No |
Decode / Encode | Codec AVC | Decode |
Decode | Codec VC-1 | Decode |
Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 9 4900U can use up to 64 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The Apple M1 Ultra (48-GPU) supports up to 128 GB of memory in 8 memory channels and achieves a memory bandwidth of up to 819.2 GB/s. |
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AMD Ryzen 9 4900U | Characteristic | Apple M1 Ultra (48-GPU) |
LPDDR4-4266, DDR4-3200 | Memory | LPDDR5-6400 |
64 GB | Max. Memory | 128 GB |
2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
51.2 GB/s | Max. Bandwidth | 819.2 GB/s |
Yes | ECC | No |
-- | L2 Cache | 52.00 MB |
8.00 MB | L3 Cache | -- |
3.0 | PCIe version | 4.0 |
12 | PCIe lanes | -- |
11.8 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 9 4900U is 15 W, while the Apple M1 Ultra (48-GPU) has a TDP of 60 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Ryzen 9 4900U | Characteristic | Apple M1 Ultra (48-GPU) |
15 W | TDP (PL1 / PBP) | 60 W |
-- | TDP (PL2) | -- |
25 W | TDP up | 120 W |
10 W | TDP down | -- |
105 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 9 4900U is manufactured in 7 nm and has 8.00 MB cache. The Apple M1 Ultra (48-GPU) is manufactured in 5 nm and has a 52.00 MB cache. |
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AMD Ryzen 9 4900U | Characteristic | Apple M1 Ultra (48-GPU) |
7 nm | Technology | 5 nm |
Chiplet | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | Armv8.5-A (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | Rosetta 2 x86-Emulation |
FP6 | Socket | -- |
AMD-V, SVM | Virtualization | Apple Virtualization Framework |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | macOS |
Q1/2020 | Release date | Q1/2022 |
-- | Release price | -- |
show more data | show more data | |
AMD Ryzen 9 4900U
8C 16T @ 4.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 4.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 3.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
AMD Radeon RX Vega 8 (Renoir) @ 1.75 GHz |
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Apple M1 Ultra (48-GPU)
Apple M1 Ultra (48 Core) @ 1.30 GHz |
AMD Ryzen 9 4900U
8C 16T @ 4.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 4.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 3.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 4.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 3.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 4.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 3.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 3.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 3.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 4.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 3.40 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 3.20 GHz |
AMD Ryzen 9 4900U
8C 16T @ 2.00 GHz |
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Apple M1 Ultra (48-GPU)
20C 20T @ 0.60 GHz |
Devices using this processor |
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AMD Ryzen 9 4900U | Apple M1 Ultra (48-GPU) |
Unknown | Apple Mac Studio (2022) |