AMD Ryzen 9 9955HX vs AMD Ryzen Embedded 9950X Comparison

Head-to-Head Benchmarks

The database contains no head-to-head benchmark results for this pairing. The AMD Ryzen 9 9955HX has a full recorded benchmark suite, while the AMD Ryzen Embedded 9950X has no recorded benchmarks, zero average score, and no rival comparisons. This makes a direct numerical comparison impossible. The 9955HX shows a percentile rank of 96 against all CPUs, meaning it outperforms 96% of recorded processors. Its average benchmark score of 91,199 places it slightly ahead of the Intel Xeon 654 (90,717, delta +0.5%) and the AMD Ryzen AI Max+ 392 (90,541, delta +0.7%), while trailing the Intel Core Ultra 7 270K Plus (93,785, delta -2.8%) and Intel Xeon 6520P (93,786, delta -2.8%).

For the 9955HX, specific recorded scores include a Cinebench R23 multi-core result of 37,159 and a single-core result of 2,174. In Cinebench R15, it scores 5,905 multi-core and 336 single-core. PassMark tests show a multithread score of 56,171, a single-thread score of 4,393, integer math at 212,598, floating point math at 136,682, data compression at 731,998, data encryption at 37,330, extended instructions at 57,946, find prime numbers at 287, physics at 2,720, and random string sorting at 77,890. These are the only recorded numbers available for either processor.

Architecture Differences

Both processors share the same fundamental silicon. Each uses 16 cores and 32 threads, built on TSMC's 4 nm process node, with 16,630 million transistors and a die size of 2x 70.6 mm². Both are from the 9000 series, use Zen 5 architecture, support DDR5 memory in a dual-channel configuration with 89.6 GB/s bandwidth, and both support ECC memory. PCIe connectivity is identical: Gen 5 with 28 lanes from the CPU only. Both have unlocked multipliers.

The differences begin with the codename. The Ryzen 9 9955HX uses the Fire Range codename, while the Ryzen Embedded 9950X uses Granite Ridge. The socket differs: the 9955HX uses AMD Socket FL1, the Embedded 9950X uses AMD Socket AM5. Base clocks differ significantly: the 9955HX runs at 2.50 GHz base, while the Embedded 9950X runs at 4.30 GHz base. Boost clocks also differ, with the 9955HX reaching 5.40 GHz and the Embedded 9950X reaching 5.70 GHz. Thermal design power is a major split: the 9955HX is rated at 55 W TDP, while the Embedded 9950X is rated at 170 W TDP. The integrated graphics differ in naming: the 9955HX has Radeon 610M, while the Embedded 9950X has Radeon Graphics. Cache is identical in structure: 80 KB L1 per core, 1 MB L2 per core, and 64 MB of shared L3 cache on both.

The market segment differs as expected: the 9955HX is listed as Mobile, the Embedded 9950X as Desktop. Release dates are also different: the 9955HX launched on 2025-01-05, while the Embedded 9950X launched on 2025-10-06. Part numbers are distinct: 100-000001028 for the 9955HX, 100-000001277E for the Embedded 9950X.

Where Each One Wins

Without head-to-head benchmark data, the win split must be inferred from the recorded specifications and the lone benchmark suite. The Ryzen 9 9955HX, with its 55 W TDP, is designed for mobile deployment. Its lower base clock of 2.50 GHz suggests power efficiency as a priority, but its 5.40 GHz boost clock indicates it can still deliver high single-thread performance when needed. The 9955HX has a full set of recorded benchmark scores, all showing strong multi-threaded capability. Its Cinebench R23 multi-core score of 37,159 places it in the top percentile of all CPUs, and its PassMark multithread score of 56,171 indicates heavy parallel workloads are handled well.

The Ryzen Embedded 9950X, with a 170 W TDP and base clock of 4.30 GHz, is built for sustained, high-throughput desktop or embedded operation. Its higher boost clock of 5.70 GHz gives it a theoretical edge in peak single-thread performance. However, no benchmark scores exist in the database to confirm this. The 9950X has a percentile rank of 50, which is the median, but this is based on zero recorded benchmarks, so it reflects a default position rather than measured performance. The 9955HX's percentile of 96 is backed by actual data.

For workloads that require sustained multi-core throughput, the 9955HX's recorded scores suggest it excels. For workloads that demand the highest possible clock speeds, the Embedded 9950X's higher base and boost clocks indicate an advantage, but this is speculative without benchmark confirmation. The 9955HX also benefits from a lower TDP, which in a mobile context means less thermal management overhead. The Embedded 9950X, with its desktop socket and higher TDP, likely supports longer sustained all-core loads, but again, the data does not confirm this.

The Verdict

The data clearly favors the Ryzen 9 9955HX in terms of recorded performance evidence. It has a percentile rank of 96, an average benchmark score of 91,199, and a complete suite of 15 benchmark results. The Ryzen Embedded 9950X has no recorded benchmarks, a percentile rank of 50, and an average score of zero. Based strictly on the database, the 9955HX is the only processor with demonstrated performance.

The 9955HX's nearest rivals provide context: it sits 0.5% above the Intel Xeon 654 and 0.7% above the AMD Ryzen AI Max+ 392, while sitting 2.8% below both the Intel Core Ultra 7 270K Plus and Intel Xeon 6520P. This indicates the 9955HX is competitively positioned in the high-end range, slightly behind the top Intel offerings but ahead of several strong AMD and Intel parts.

For users who need a mobile processor with proven multi-threaded performance, the 9955HX is the clear choice based on data. For users who need a desktop embedded processor with higher clock speeds, the Embedded 9950X offers a higher base clock (4.30 GHz vs 2.50 GHz) and higher boost clock (5.70 GHz vs 5.40 GHz), but no benchmark evidence to validate real-world performance. The 170 W TDP of the Embedded 9950X indicates it is not power-limited in the same way as the 55 W mobile part, which could allow for more consistent high-clock operation.

The verdict from the data is straightforward: the 9955HX is the proven performer, while the Embedded 9950X is an unverified specification sheet. Choose the 9955HX for measured performance, choose the Embedded 9950X only if the higher clock rates and desktop socket are absolute requirements, and accept the absence of benchmark confirmation.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen Embedded 9950X has a boost clock of 5.70 GHz, while the AMD Ryzen 9 9955HX has a boost clock of 5.40 GHz.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 9 9955HX and the AMD Ryzen Embedded 9950X have ECC memory support set to true in the database.

Q: What is the TDP of each processor?

A: The AMD Ryzen 9 9955HX has a TDP of 55 W, while the AMD Ryzen Embedded 9950X has a TDP of 170 W.

Q: Which processor has a higher percentile rank?

A: The AMD Ryzen 9 9955HX has a percentile rank of 96, while the AMD Ryzen Embedded 9950X has a percentile rank of 50.

Q: Are the cache sizes identical between the two processors?

A: Yes, both have 80 KB L1 cache per core, 1 MB L2 cache per core, and 64 MB of shared L3 cache.

Q: What is the release date difference?

A: The AMD Ryzen 9 9955HX was released on 2025-01-05, while the AMD Ryzen Embedded 9950X was released on 2025-10-06.

Specification Differences

The following fields differ between the AMD Ryzen 9 9955HX and the AMD Ryzen Embedded 9950X:

• Base Clock: 2.50 GHz vs 4.30 GHz
• Boost Clock: 5.40 GHz vs 5.70 GHz
• TDP: 55 W vs 170 W
• Socket: AMD Socket FL1 vs AMD Socket AM5
• Codename: Fire Range vs Granite Ridge
• Integrated Graphics: Radeon 610M vs Radeon Graphics
• Market Segment: Mobile vs Desktop
• Release Date: 2025-01-05 vs 2025-10-06
• Part Number: 100-000001028 vs 100-000001277E
• Benchmark Results: 15 recorded scores vs none recorded
• Percentile Rank: 96 vs 50
• Average Benchmark Score: 91,199 vs 0
• Nearest Rivals: Four listed vs none listed