AMD Ryzen 9 9950X vs Intel Core Ultra 7 265K Comparison

Head-to-Head Benchmarks

The AMD Ryzen 9 9950X and Intel Core Ultra 7 265K split their 17 head-to-head comparisons, with AMD taking 10 wins and Intel taking 7. The average benchmark score tells the broader story: the Ryzen 9 9950X sits at 74,640, while the Core Ultra 7 265K lands at 70,879, a difference of roughly 5% in favor of AMD. Both processors rank in the 94th percentile against all CPUs in the database.

AMD's largest victory comes in PassMark integer math, where the Ryzen 9 9950X scores 242,097 against Intel's 143,242, a 69% advantage. This is the single biggest delta in the entire comparison, and it reflects the AMD part's ability to sustain heavy integer workloads. Data compression also favors AMD heavily: the Ryzen 9 9950X posts 896,544 versus 665,554, a 34.7% lead. Extended instruction throughput follows a similar pattern, with AMD ahead by 31.7% (71,564 vs. 54,333). These three workloads are all throughput-oriented, and the Ryzen 9 9950X simply has more aggregate execution resources to throw at them.

Cinebench R15 multicore shows AMD ahead by 26.2%, scoring 6,335 against Intel's 5,020. The gap narrows in Cinebench R23 multicore, where AMD leads by 14.2% (40,924 vs. 35,850), but the direction remains consistent. Geekbench multicore gives AMD an 11% edge (25,616 vs. 23,085), and PassMark multithread shows a 12.7% advantage (66,030 vs. 58,594). Random string sorting adds another AMD win at 18.3% (94,368 vs. 79,752). Geekbench single-core also goes to AMD, with a score of 3,029 versus 2,713, an 11.6% margin, while Cinebench R23 single-core favors AMD by 9% (2,202 vs. 2,020).

Intel's wins, while fewer, are notable in specific niches. The most striking is Cinebench R15 single-core, where Intel scores 708 against AMD's 344, a 51.4% advantage. This is an outlier result that likely reflects test methodology differences, but it is the recorded data and it is a decisive Intel victory. PassMark single-thread also goes to Intel, albeit narrowly: 4,928 vs. 4,737, a 3.9% margin. The duplicate PassMark singlethread entry shows the same scores and the same 3.9% delta.

In floating-point math, Intel takes a 16.1% win (189,629 vs. 159,063), which is a meaningful edge for workloads that rely heavily on FPU throughput. Prime number finding favors Intel by 29.7% (491 vs. 345), and physics simulation gives Intel a 12.1% lead (3,731 vs. 3,279). Data encryption is the final Intel win, at 48,246 vs. 44,366, an 8% margin.

The pattern is clear: AMD dominates integer-heavy, compression, and general multithreaded workloads with margins ranging from 11% to 69%. Intel fights back in single-threaded, floating-point, and encryption tasks, plus the anomalous Cinebench R15 single-core result. For raw multi-core throughput, the Ryzen 9 9950X is the stronger part, but the Core Ultra 7 265K holds its own in several specialized categories.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 9 9950X has an average benchmark score of 74,640, compared to 70,879 for the Intel Core Ultra 7 265K. Both sit in the 94th percentile against all CPUs in the database.

Q: What is the largest performance gap between the two chips?

A: The biggest delta is in PassMark integer math, where the AMD Ryzen 9 9950X leads by 69% with a score of 242,097 versus 143,242 for the Intel Core Ultra 7 265K. The second largest is the 51.4% Intel advantage in Cinebench R15 single-core.

Q: How do the two compare in Cinebench R23?

A: In Cinebench R23 multicore, the AMD Ryzen 9 9950X scores 40,924 versus 35,850 for the Intel Core Ultra 7 265K, a 14.2% lead. In Cinebench R23 single-core, AMD wins by 9%, posting 2,202 against Intel's 2,020.

Q: Does the Intel chip win any multithreaded benchmarks?

A: Yes. In PassMark floating-point math, Intel leads by 16.1% (189,629 vs. 159,063). Intel also wins PassMark physics by 12.1% (3,731 vs. 3,279), PassMark find prime numbers by 29.7% (491 vs. 345), and PassMark data encryption by 8% (48,246 vs. 44,366).

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 7 265K has 20 cores and 20 threads, while the AMD Ryzen 9 9950X has 16 cores and 32 threads. The AMD chip uses simultaneous multithreading to double its thread count, while Intel's 20 threads match its core count.

Q: Are both processors currently in production and unlocked?

A: Yes, both are listed as Active in production status and both have their multipliers unlocked. The AMD Ryzen 9 9950X has a launch MSRP of $649, and the Intel Core Ultra 7 265K has a launch MSRP of $394.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 9 9950X is built on Zen 5 architecture with the Granite Ridge codename, part of the 9000 series. It uses a 4 nm process node fabricated by TSMC and packs 16,630 million transistors across a dual-die design measuring 2x 70.6 mm². The Intel Core Ultra 7 265K uses Arrow Lake architecture with the Arrow Lake-S codename, belonging to Core Ultra Series 2. It is built on a 3 nm TSMC process and contains 17,800 million transistors on a single 243 mm² die.

Cache organization differs substantially. AMD allocates 80 KB of L1 cache per core and 1 MB of L2 per core, with a shared 64 MB L3 pool. Intel provides 192 KB of L1 per core and 3 MB of L2 per core, but only 30 MB of shared L3. The Ryzen 9 9950X's larger L3 cache, combined with its 32 threads versus Intel's 20, gives it a significant advantage in workloads that benefit from large working sets and high thread counts. Intel's larger per-core L1 and L2 caches may help with latency-sensitive single-threaded tasks.

Both platforms support DDR5 memory in dual-channel configuration, but Intel's memory bandwidth is rated higher at 102.4 GB/s versus AMD's 89.6 GB/s. Both support ECC memory. PCIe connectivity differs, with AMD offering Gen 5 across 24 lanes (CPU only) while Intel provides Gen 5 across 20 lanes (CPU only). The integrated graphics solutions also differ: AMD includes Radeon Graphics, while Intel ships Arc Xe-LPG Graphics 64EU.

The socket platforms are not interchangeable. AMD uses Socket AM5, while Intel uses Socket 1851. Both processors are unlocked for overclocking, but the underlying platform requirements differ entirely. The AMD part's dual-chiplet design with a 64 MB L3 cache is a stark contrast to Intel's monolithic Arrow Lake-S die with a smaller shared cache, and these architectural choices drive the benchmark patterns seen in the head-to-head data.

Specification Differences

The core and thread counts set these two apart immediately. The AMD Ryzen 9 9950X offers 16 cores and 32 threads, while the Intel Core Ultra 7 265K provides 20 cores and 20 threads. Clock speeds also differ: AMD's base clock is 4.30 GHz with a boost of 5.70 GHz, while Intel runs at 3.90 GHz base and 5.50 GHz boost. The TDP rating favors Intel at 125 watts versus AMD's 170 watts.

Process technology and physical dimensions differ as well. AMD uses a 4 nm TSMC process with 16,630 million transistors and a 2x 70.6 mm² die size. Intel uses a 3 nm TSMC process with 17,800 million transistors and a 243 mm² die size. Cache hierarchies diverge significantly: AMD provides 80 KB L1 and 1 MB L2 per core with 64 MB shared L3, while Intel offers 192 KB L1 and 3 MB L2 per core with 30 MB shared L3.

Memory bandwidth ratings differ, with Intel at 102.4 GB/s and AMD at 89.6 GB/s, though both use dual-channel DDR5 and support ECC. PCIe lane counts vary, with AMD offering 24 Gen 5 lanes (CPU only) versus Intel's 20 Gen 5 lanes (CPU only). Integrated graphics differ: AMD includes Radeon Graphics, while Intel includes Arc Xe-LPG Graphics 64EU. The sockets are different, AMD Socket AM5 versus Intel Socket 1851, and the release dates are roughly two months apart, with AMD launching on 2024-08-14 and Intel on 2024-10-23. The launch MSRP also differs, with AMD at $649 and Intel at $394. Both parts are Active in production, have unlocked multipliers, and are desktop market segments.

Where Each One Wins

The AMD Ryzen 9 9950X is the clear choice for multithreaded, integer-heavy, and data-focused workloads. Its 69% lead in PassMark integer math and 34.7% lead in data compression make it well suited for compilation, rendering, database operations, and archival tasks. The 31.7% advantage in extended instructions points to strong performance in SIMD-heavy code. Cinebench R23 multicore at 40,924 versus 35,850 and Geekbench multicore at 25,616 versus 23,085 confirm that content creation and 3D rendering workloads will favor AMD. The 18.3% win in random string sorting also suggests advantages in text processing and data manipulation. For users running heavily threaded productivity suites, video encoding, or scientific computing that relies on integer throughput, the Ryzen 9 9950X delivers the larger margins.

The Intel Core Ultra 7 265K wins in several specialized areas. Its 16.1% lead in floating-point math (189,629 vs. 159,063) makes it attractive for workloads that depend on FPU performance, such as certain simulation and physics calculations. The 29.7% advantage in prime number finding and 12.1% lead in physics simulation reinforce this pattern. Data encryption at 8% ahead suggests Intel has an edge in cryptographic workloads. The PassMark single-thread win of 3.9% (4,928 vs. 4,737) indicates slightly better responsiveness in lightly threaded applications, though the Geekbench single-core result contradicts this with an 11.6% AMD advantage. The Cinebench R15 single-core result, where Intel leads by 51.4%, is a dramatic outlier that may reflect specific test conditions, but it is the recorded data and it is a decisive Intel victory in that metric.

For users who prioritize maximum multi-threaded throughput, the Ryzen 9 9950X is the stronger processor, winning 10 of the 17 head-to-head comparisons and posting a higher average benchmark score. For users whose workloads are dominated by floating-point math, physics simulation, encryption, or prime number computation, the Core Ultra 7 265K offers compelling advantages in those specific areas, despite its lower overall average score. The choice ultimately depends on workload mix, but the data clearly shows AMD leading in the majority of tested scenarios, with Intel carving out a narrower but real set of specialized wins.