AMD Ryzen 9 9955HX vs Intel Core 9 273PE Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive overall win for the AMD Ryzen 9 9955HX, which takes 12 of the 15 head-to-head comparisons. The Intel Core 9 273PE manages three wins, but the scale of the AMD victories in most workloads is substantial.

The largest single delta appears in the PassMark extended instructions test. The AMD Ryzen 9 9955HX scores 57,946 against 24,630 for the Intel part, a 135.3% advantage. This indicates a major gap in vectorized or specialized instruction throughput, likely reflecting the AMD processor's wider execution resources and newer instruction set implementation.

Data compression follows a similar pattern. The AMD part records 731,998 in PassMark data compression versus 405,885 for the Intel, a 80.3% lead. Integer math shows a 52.5% margin, with AMD at 212,598 and Intel at 139,410. The multithread test shows AMD at 56,171 versus 36,810, a 52.6% gap. Random string sorting goes to AMD by 72.7% (77,890 vs 45,098), and data encryption favors AMD by 64.3% (37,330 vs 22,719).

In Cinebench R23 multi-core, the AMD Ryzen 9 9955HX scores 37,159 against 31,288 for the Intel Core 9 273PE, a 18.8% lead. The older Cinebench R15 multi-core test shows a much larger gap: 5,905 for AMD versus 3,153 for Intel, a 87.3% difference. Floating point math favors AMD by 26.7% (136,682 vs 107,884), and prime number finding favors AMD by 41.4% (287 vs 203). The single-thread PassMark result goes to AMD by 20.4% (4,393 vs 3,650).

The Intel Core 9 273PE wins the single-core Cinebench tests decisively. In Cinebench R23 single-core, Intel scores 4,417 against AMD's 2,174, a 50.8% advantage. The Cinebench R15 single-core result shows Intel at 445 versus 336 for AMD, a 24.5% margin. The third Intel win comes in PassMark physics, where Intel scores 3,120 against AMD's 2,720, a 12.8% lead.

The average benchmark scores reflect the overall balance. The AMD Ryzen 9 9955HX sits at an average of 91,199 across the database's benchmark suite, while the Intel Core 9 273PE averages 49,845. The AMD part also holds a 96th percentile rank among all CPUs in the database, versus the 90th percentile for the Intel.

Where Each One Wins

The AMD Ryzen 9 9955HX dominates in almost every throughput-oriented workload. Multi-threaded rendering, data compression, encryption, integer math, and string sorting all fall firmly in its favor. The Cinebench R23 multi-core result of 37,159 indicates strong sustained all-core performance for rendering and video encoding tasks. The PassMark multithread score of 56,171 reinforces this pattern, showing that the 16-core, 32-thread configuration scales well under parallel load.

The data compression and encryption results suggest the AMD processor handles database workloads, file archiving, and secure communication tasks with substantial headroom. The 731,998 data compression score and 37,330 encryption score are both roughly 1.8x the Intel figures. Extended instructions performance, at 57,946, also points to strong performance in scientific computing and media processing that leverage SIMD or vector extensions.

The Intel Core 9 273PE wins specifically in single-core Cinebench tests and PassMark physics. The Cinebench R23 single-core score of 4,417 versus 2,174 indicates that Intel's high boost clock of 5.70 GHz delivers strong latency-sensitive performance for lightly threaded applications that rely on a single core. The PassMark physics win (3,120 vs 2,720) suggests the Intel part handles game physics simulations or similar frame-based calculations with higher efficiency.

The split in single-core results is notable. PassMark single-thread favors AMD at 4,393 versus 3,650, while Cinebench single-core heavily favors Intel. This divergence reflects different workload characteristics: PassMark's single-thread suite may weight memory latency and cache behavior differently than Cinebench's rendering-centric single-core test. The Intel part's higher boost clock appears to benefit the Cinebench workload more directly.

For users running mixed workloads, the AMD part's 12 wins cover a broader range of task types. The Intel part's three wins are narrower, concentrated in single-core rendering and physics simulation. The overall database percentile ranking, 96th for AMD versus 90th for Intel, confirms that the AMD processor sits higher in the global distribution of CPU performance.

Architecture Differences

The AMD Ryzen 9 9955HX uses the Zen 5 architecture under the Fire Range codename, part of the 9000 series. It is built on a 4 nm process at TSMC and packs 16,630 million transistors across a dual-chiplet design with a die size of 2x 70.6 mm². The Intel Core 9 273PE uses the Bartlett Lake codename, fabricated on Intel's 10 nm process. The Intel die size and transistor count are not recorded in the database.

Core counts differ substantially. AMD provides 16 cores and 32 threads, while Intel provides 12 cores and 24 threads. Both use an 80 KB L1 cache per core, but the L2 cache differs: AMD offers 1 MB per core, Intel offers 2 MB per core. The L3 cache heavily favors AMD at 64 MB shared, versus 36 MB shared for Intel.

The socket platforms are incompatible. AMD uses Socket FL1, while Intel uses Socket 1700. The AMD part is a mobile segment processor, while the Intel part is a desktop segment processor. The AMD processor has an unlocked multiplier; the Intel part does not.

Integrated graphics differ as well. AMD includes the Radeon 610M, Intel includes the UHD Graphics 730. Both support ECC memory and dual-channel DDR5, but the Intel part also supports DDR4. Memory bandwidth is identical at 89.6 GB/s for both.

PCIe lane allocation also differs. The AMD processor provides Gen 5 with 28 lanes (CPU only), while the Intel part provides Gen 5 with 16 lanes (CPU only). This gives the AMD platform more headroom for multiple high-speed storage devices or expansion cards.

The process node gap, 4 nm versus 10 nm, contributes to the power and efficiency profile. The AMD part has a 55 watt TDP, the Intel part has a 65 watt TDP. Despite the lower TDP, the AMD processor delivers higher multi-threaded throughput in the recorded benchmarks.

Specification Differences

The two processors differ across several recorded specification fields. The AMD Ryzen 9 9955HX has 16 cores and 32 threads; the Intel Core 9 273PE has 12 cores and 24 threads. Base clocks are 2.50 GHz for AMD and 2.30 GHz for Intel. Boost clocks are 5.40 GHz for AMD and 5.70 GHz for Intel.

TDP values differ by 10 watts: AMD at 55 watts, Intel at 65 watts. The process node is 4 nm for AMD and 10 nm for Intel. The foundry is TSMC for AMD and Intel for Intel. The AMD part uses the Zen 5 architecture; the Intel part has no architecture field recorded.

Cache configurations differ in L2 and L3. AMD provides 1 MB L2 per core and 64 MB shared L3. Intel provides 2 MB L2 per core and 36 MB shared L3. Both share the same L1 cache of 80 KB per core.

Memory support differs: AMD supports DDR5 only, while Intel supports DDR4 and DDR5. Both use a dual-channel memory bus and achieve 89.6 GB/s bandwidth. Both support ECC memory.

PCIe lanes differ: AMD offers 28 Gen 5 lanes, Intel offers 16 Gen 5 lanes. Integrated graphics are Radeon 610M for AMD and UHD Graphics 730 for Intel. Market segments differ: AMD is mobile, Intel is desktop. The AMD part has an unlocked multiplier; the Intel part is locked.

The Intel Core 9 273PE has a recorded launch MSRP of $549. The AMD Ryzen 9 9955HX has no launch MSRP recorded. Release dates also differ: AMD released on 2025-01-05, Intel on 2026-03-08.

FAQ

Q: Which processor has the higher multi-core Cinebench R23 score?

A: The AMD Ryzen 9 9955HX scores 37,159 in Cinebench R23 multi-core, which is 18.8% higher than the Intel Core 9 273PE's score of 31,288.

Q: How large is the single-core performance gap in Cinebench R23?

A: The Intel Core 9 273PE leads by 50.8% in Cinebench R23 single-core, scoring 4,417 against the AMD Ryzen 9 9955HX's 2,174.

Q: Which processor has the higher boost clock?

A: The Intel Core 9 273PE has a boost clock of 5.70 GHz, while the AMD Ryzen 9 9955HX boosts to 5.40 GHz.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 9 9955HX and the Intel Core 9 273PE support ECC memory. Both also support DDR5, but only the Intel part supports DDR4.

Q: What are the core and thread counts for each processor?

A: The AMD Ryzen 9 9955HX has 16 cores and 32 threads. The Intel Core 9 273PE has 12 cores and 24 threads.

Q: Which processor has the larger L3 cache?

A: The AMD Ryzen 9 9955HX has 64 MB of shared L3 cache, compared to 36 MB shared on the Intel Core 9 273PE. The Intel part has a larger per-core L2 cache at 2 MB versus 1 MB for AMD.