AMD Ryzen 9 4900HS vs Intel Xeon W-2125 Comparison

The Intel Xeon W-2125 and the AMD Ryzen 9 4900HS represent two fundamentally different philosophies in processor design: one is a power-hungry workstation part built for sustained throughput on a desktop platform, while the other is a highly efficient mobile chip designed to maximize performance within a strict power envelope. The benchmark data in our database reveals a clear overall winner in raw performance, but a closer look at the specific tests shows a more nuanced picture, particularly in single-threaded workloads where the older Intel architecture still holds a narrow edge.

Head-to-Head Benchmarks

The most striking contrast between these two processors appears in multi-core workloads, where the AMD Ryzen 9 4900HS demonstrates a decisive advantage. In the Cinebench R15 multi-core test, the AMD part scores 1863 points against the Intel Xeon W-2125's 852 points, a difference of 54.3 percent in favor of the Ryzen. This massive gap is not a minor margin; it indicates that the Ryzen 9 4900HS is delivering well over double the multi-threaded performance of the Xeon in this specific rendering workload. The story is similar in the Geekbench multi-core test, where the AMD processor scores 6926 compared to the Intel's 4988, a 28 percent lead. While the percentage delta is smaller than in Cinebench R15, the absolute difference of nearly 2000 points is substantial and reinforces the AMD chip's dominance in parallel processing tasks.

The single-core results tell a different, much closer story. In the Cinebench R15 single-core test, the AMD Ryzen 9 4900HS again takes the win, scoring 193 points versus the Intel Xeon W-2125's 120 points, a 37.8 percent advantage. However, in the Geekbench single-core test, the tables turn. Here, the Intel Xeon W-2125 scores 1323 points, narrowly edging out the AMD's 1311 points, a victory margin of just 0.9 percent. This 12-point difference is negligible in real-world terms, but it is the only test in the head-to-head suite where the Intel processor comes out ahead. The data suggests that while AMD has a commanding lead in most scenarios, Intel's older Skylake architecture still manages to be competitive in a specific single-threaded benchmark, likely due to its high boost clock of 4.50 GHz.

Where Each One Wins

Based on the recorded benchmark results, the AMD Ryzen 9 4900HS is the clear winner for any workload that can utilize multiple cores. Its 54.3 percent lead in Cinebench R15 multi-core and 28 percent lead in Geekbench multi-core make it the superior choice for tasks such as video encoding, 3D rendering, software compilation, and any other heavily threaded application. The data indicates that the Ryzen 9 4900HS's 8 cores and 16 threads provide a significant parallel processing advantage over the Xeon W-2125's 4 cores and 8 threads. Furthermore, the AMD part also wins the Cinebench R15 single-core test by a substantial 37.8 percent, suggesting that its Zen 2 architecture is more efficient at executing instructions per clock in this specific test.

The Intel Xeon W-2125's only win comes in the Geekbench single-core test, where it outperforms the Ryzen 9 4900HS by 0.9 percent. This narrow victory is unlikely to translate into a meaningful real-world advantage in most applications, as the difference is within the margin of error for such benchmarks. However, for a user running a legacy application that is highly sensitive to a specific set of instructions, this could theoretically provide a marginal edge. The Xeon's higher boost clock of 4.50 GHz, compared to the Ryzen's 4.30 GHz, may contribute to this result. In essence, the AMD processor wins three out of four head-to-head benchmarks, with its multi-core performance being the defining factor.

Architecture Differences

The architectural divide between these two processors is stark, explaining the performance gap. The Intel Xeon W-2125 is built on Intel's 14 nm process node with a die size of 484 mm², targeting the Server/Workstation market segment. It features 4 cores and 8 threads, with a base clock of 4.00 GHz and a boost clock of 4.50 GHz. Its cache configuration includes 64 KB of L1 and 1 MB of L2 per core, alongside a shared 8.25 MB L3 cache. The Xeon supports DDR4 memory over a quad-channel bus, providing a memory bandwidth of 85.3 GB/s, and includes ECC memory support. It also offers 48 PCIe Gen 3 lanes from the CPU. This is a desktop platform part, released in 2017, and is now marked as end-of-life.

In contrast, the AMD Ryzen 9 4900HS is a mobile processor built on TSMC's 7 nm process node, resulting in a much smaller die size of 156 mm². It belongs to the 4000 series and uses the Zen 2 architecture (codenamed Renoir). It packs 8 cores and 16 threads, with a lower base clock of 3.00 GHz and a boost clock of 4.30 GHz. Its cache is composed of 64 KB of L1 and 512 KB of L2 per core, with a shared 8 MB L3 cache. It supports dual-channel DDR4 memory, resulting in a lower memory bandwidth of 51.2 GB/s, and does not support ECC memory. The Ryzen 9 4900HS integrates Radeon Graphics with 512 SPs, a feature entirely absent from the Intel Xeon. Its TDP is 35 watts, a fraction of the Xeon's 120 watts, and it is designed for the mobile socket FP6.

The data highlights a key trade-off: the Xeon W-2125 offers significantly higher memory bandwidth (85.3 GB/s vs. 51.2 GB/s) and ECC support, which are crucial for certain workstation tasks involving large data sets and data integrity. However, the Ryzen 9 4900HS compensates with more than double the core count, a more advanced process node, and integrated graphics, making it a far more versatile and power-efficient package.

FAQ

Q: Which processor is faster in multi-core workloads?

A: The AMD Ryzen 9 4900HS is significantly faster. The data shows it leads by 54.3 percent in Cinebench R15 multi-core and by 28 percent in Geekbench multi-core.

Q: Does the Intel Xeon W-2125 win any benchmark?

A: Yes, the Intel Xeon W-2125 wins the Geekbench single-core test, scoring 1323 points against the AMD Ryzen 9 4900HS's 1311 points, a margin of 0.9 percent.

Q: What is the difference in core and thread counts?

A: The Intel Xeon W-2125 has 4 cores and 8 threads, while the AMD Ryzen 9 4900HS has 8 cores and 16 threads.

Q: Which processor has a higher boost clock speed?

A: The Intel Xeon W-2125 has a higher boost clock of 4.50 GHz, compared to the AMD Ryzen 9 4900HS's boost clock of 4.30 GHz.

Q: What are the key differences in platform features?

A: The Intel Xeon W-2125 supports quad-channel DDR4 memory with ECC and 48 PCIe Gen 3 lanes. The AMD Ryzen 9 4900HS supports dual-channel DDR4 without ECC and includes integrated Radeon Graphics.

Q: How do their TDPs compare?

A: The Intel Xeon W-2125 has a TDP of 120 watts, while the AMD Ryzen 9 4900HS has a TDP of 35 watts.

The Verdict

The benchmark data presents a clear directive for most users: the AMD Ryzen 9 4900HS is the superior processor in terms of raw performance. Its decisive wins in three out of four head-to-head benchmarks, particularly its 54.3 percent lead in Cinebench R15 multi-core, make it the obvious choice for multi-threaded applications like rendering, encoding, and heavy multitasking. The Ryzen's 8-core, 16-thread configuration provides a parallel processing capability that the 4-core Xeon simply cannot match, despite the Xeon's higher memory bandwidth and ECC support. The fact that the Ryzen achieves this while consuming only 35 watts, compared to the Xeon's 120 watts, further cements its efficiency advantage.

The Intel Xeon W-2125 finds its niche only in very specific scenarios. Its sole victory in the Geekbench single-core test, with a 0.9 percent margin, is too slim to recommend it for general single-threaded performance. However, for a workstation environment that demands ECC memory for data reliability and benefits from the quad-channel memory bandwidth for large, memory-intensive datasets, the Xeon's platform features are its primary selling points. If the workload is bound by memory throughput rather than core count, the Xeon's 85.3 GB/s bandwidth could be a deciding factor. The choice, therefore, boils down to a fundamental trade-off: the AMD Ryzen 9 4900HS for superior multi-core throughput and efficiency, or the Intel Xeon W-2125 for a workstation platform with ECC and high memory bandwidth. For the vast majority of users, the data points squarely to the AMD processor.