AMD Ryzen 9 7900X vs Intel Core Ultra 5 235 Comparison

FAQ

Q: How do the two processors compare in overall average benchmark score?

A: The Intel Core Ultra 5 235 posts an average benchmark score of 50,598, while the AMD Ryzen 9 7900X scores 50,556. The delta is just 0.1%, placing both in the 93rd percentile of all CPUs.

Q: Which chip wins the majority of head-to-head benchmark tests?

A: The AMD Ryzen 9 7900X wins 13 of the 17 head-to-head tests, while the Intel Core Ultra 5 235 wins 4. This dominance is consistent across Cinebench and most Passmark workloads.

Q: In which benchmarks does the Intel chip outperform the AMD chip?

A: The Intel Core Ultra 5 235 leads in Passmark find prime numbers (396 vs 388, +2.1%), floating point math (125,202 vs 103,952, +20.4%), and single-thread tests (4,542 vs 4,238, +7.2% on both passmark_single_thread and passmark_singlethread).

Q: How large is the AMD chip's lead in multi-core rendering workloads?

A: Across Cinebench R15, R20, and R23 multi-core tests, the Ryzen 9 7900X leads by 21.9% in each case. For example, R23 multi-core scores are 43,695 vs 34,129.

Q: What are the core and thread configurations of each processor?

A: The Intel Core Ultra 5 235 has 14 cores and 14 threads (no SMT), while the AMD Ryzen 9 7900X has 12 cores and 24 threads. The AMD chip's simultaneous multithreading doubles its thread count.

Q: Which processor has a higher boost clock and what are the TDP ratings?

A: The AMD Ryzen 9 7900X boosts to 5.60 GHz with a 170W TDP, while the Intel Core Ultra 5 235 boosts to 5.00 GHz with a 65W TDP. The AMD chip's base clock is 4.70 GHz versus 3.40 GHz for the Intel.

The Verdict

The data points to a clear split: the AMD Ryzen 9 7900X is the superior choice for heavily threaded workloads and applications that scale with integer math, data compression, and encryption. Its 21.9% lead across all three Cinebench multi-core tests is decisive, and the 44.7% advantage in Passmark integer math is staggering. For rendering, scientific computing, or any task that exploits many threads, the Ryzen 9 7900X is the pick.

The Intel Core Ultra 5 235 carves out a narrower but real niche. Its 20.4% lead in floating-point math and 7.2% single-thread advantage in Passmark suggest it handles certain numerical workloads and lightly threaded tasks well. However, its 14-core, 14-thread design without SMT limits its multi-threaded ceiling, as evidenced by the 21.8% deficit in Passmark multithread.

For a workstation or content-creation rig where rendering time matters, the Ryzen 9 7900X wins outright. For mixed use with a focus on single-thread responsiveness or specific floating-point tasks, the Intel chip is defensible but not dominant. The benchmark results are unambiguous: the AMD chip wins 13 of 17 tests, and its losses are concentrated in a few narrow categories.

Head-to-Head Benchmarks

The most lopsided result is Passmark integer math, where the Ryzen 9 7900X scores 169,273 against 93,621 for the Intel Core Ultra 5 235 — a 44.7% gap. This is the single largest delta in either direction and reflects the AMD chip's thread advantage in a workload that scales almost linearly with core count.

Data compression tells a similar story. The Ryzen 9 7900X posts 632,505 versus 413,865, a 34.6% lead. Random string sorting follows at 74,658 vs 49,667, a 33.5% advantage. Extended instructions show a 26.9% gap (47,619 vs 34,793), and data encryption comes in at 16.4% (37,263 vs 31,148).

The Cinebench suite is uniform: every test — R15, R20, R23, both single and multi-core — shows a 21.9% lead for the AMD chip. Single-core R23 is 6,168 vs 4,818, while multi-core R23 is 43,695 vs 34,129. This consistency across versions suggests a fundamental architectural advantage rather than a workload-specific quirk.

The Intel Core Ultra 5 235's wins are smaller in count but notable in magnitude. Floating-point math is its best result: 125,202 vs 103,952, a 20.4% lead. Single-thread Passmark shows 4,542 vs 4,238, a 7.2% advantage. Find prime numbers is a narrow 2.1% win (396 vs 388). Passmark physics is nearly tied, with the AMD chip ahead by just 2.7% (3,060 vs 2,976).

The overall passmark_multithread score reinforces the pattern: 51,406 for AMD vs 40,192 for Intel, a 21.8% gap that mirrors the Cinebench results. The AMD chip's total benchmark score advantage is marginal (50,556 vs 50,598, actually slightly behind), but its wins are in the workloads that matter most for heavy compute.

Specification Differences

The two CPUs differ substantially in core and thread counts. The Intel Core Ultra 5 235 offers 14 cores and 14 threads, while the AMD Ryzen 9 7900X provides 12 cores and 24 threads. The Intel chip has no SMT, which explains its thread count equaling its core count.

Clock speeds diverge significantly. The Intel chip has a base clock of 3.40 GHz and a boost of 5.00 GHz. The AMD chip runs at 4.70 GHz base and 5.60 GHz boost — a full 1.3 GHz higher base and 0.6 GHz higher boost.

TDP ratings are far apart: 65W for the Intel versus 170W for the AMD. This is a 105W difference and indicates very different cooling and power delivery requirements.

Memory bandwidth differs by about 19.2 GB/s. The Intel chip supports 102.4 GB/s, while the AMD chip is rated at 83.2 GB/s. Both use dual-channel DDR5.

PCIe lanes differ: the Intel chip provides 20 Gen 5 lanes (CPU only), while the AMD chip offers 24 Gen 5 lanes.

ECC memory support is present on the AMD chip but absent on the Intel chip. The Intel chip includes Arc Xe-LPG Graphics with 24EU, while the AMD chip has Radeon Graphics.

The multiplier is unlocked on the AMD chip but locked on the Intel. The AMD chip also has a higher launch MSRP of $549, while the Intel chip has a launch MSRP of $257.

Architecture Differences

The Intel Core Ultra 5 235 is built on Arrow Lake-S, using a 3nm process from TSMC. The AMD Ryzen 9 7900X uses Zen 4 (Raphael) on a 5nm process, also from TSMC. The Intel chip integrates 17,800 million transistors on a 243 mm² die, while the AMD chip has 13,140 million transistors spread across two 71 mm² dies (142 mm² total).

Cache configurations differ markedly. The Intel chip has 192 KB L1 per core, 3 MB L2 per core, and 24 MB shared L3. The AMD chip has 64 KB L1 per core, 1 MB L2 per core, and a much larger 64 MB shared L3. The AMD's L3 cache is 40 MB larger, which helps in data-heavy workloads.

The socket and platform differ: Intel Socket 1851 for the Core Ultra 5 235, AMD Socket AM5 for the Ryzen 9 7900X. The Intel chip's generation is listed as Ultra 5 (Arrow Lake), while the AMD chip is Ryzen 9 (Zen 4 Raphael). Release dates are also different: January 2025 for the Intel, September 2022 for the AMD.

The Intel chip uses a single monolithic die design (243 mm²), whereas the AMD chip uses a chiplet approach with two 71 mm² dies. This structural difference explains some of the cache and power characteristics. The Intel's smaller process node (3nm vs 5nm) allows for a higher transistor count in a larger single die, but the AMD's dual-die design with more L3 cache contributes to its multi-threaded performance edge.