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

The AMD Ryzen 9 7900 and Intel Core Ultra 5 235A are both 65W desktop processors, yet they deliver sharply contrasting performance profiles. The Ryzen 9 7900 dominates heavily threaded and data-intensive workloads, while the Core Ultra 5 235A counters with a commanding lead in single-threaded and lightly threaded tasks. The benchmark data shows a split decision: the AMD chip wins 8 of the 15 head-to-head tests, while the Intel chip wins 7, but the margins tell a more nuanced story. The Ryzen 9 7900’s wins are often lopsided, whereas the Core Ultra 5 235A’s victories are concentrated in specific workload categories.

The Verdict

The data paints a clear picture for different user priorities. The AMD Ryzen 9 7900 is the choice for multi-threaded productivity and content creation. Its 12 cores and 24 threads provide a substantial advantage in heavily parallel workloads, as evidenced by a 25.9% lead in PassMark multithread (48347 vs 38392) and a 22.2% lead in Cinebench R15 multicore (4020 vs 3289). It also dominates integer math, scoring 85.1% higher than the Intel chip (164075 vs 88626), making it the superior option for code compilation, financial modeling, and scientific computing. The Ryzen 9 7900 also wins in data compression (577847 vs 393800, a 46.7% delta), encryption (34708 vs 30136, a 15.2% delta), and random string sorting (68474 vs 49489, a 38.4% delta). If your workflow is heavily threaded, the Ryzen 9 7900’s performance advantage is decisive.

The Intel Core Ultra 5 235A is the pick for single-threaded performance and gaming-adjacent workloads. Its single-core scores are dramatically higher: a 57.3% lead in Cinebench R23 singlecore (4607 vs 1966) and a 32.1% lead in Cinebench R15 singlecore (464 vs 315). It also wins PassMark single-thread (4557 vs 4130, a 9.4% delta) and floating-point math (118778 vs 97943, a 17.5% delta). This makes the Core Ultra 5 235A the better choice for applications that rely on a few fast cores, such as legacy software, certain simulation tools, and lightly threaded game engines. Its 14 cores without hyper-threading still provide respectable multi-core throughput, as shown by a 24.1% lead in Cinebench R23 multicore (32633 vs 24776), but this is an outlier compared to its other multi-threaded results.

For a balanced assessment, the average benchmark scores place the Ryzen 9 7900 at 49228 and the Core Ultra 5 235A at 48201, a mere 2.1% difference. Both chips sit at the 90th percentile of all CPUs, meaning either will deliver top-tier performance. The deciding factor is workload: choose the Ryzen 9 7900 for parallel processing and data-heavy tasks, or the Core Ultra 5 235A for maximum single-thread responsiveness and floating-point performance.

Architecture Differences

The two processors are built on fundamentally different architectures. The AMD Ryzen 9 7900 uses the Zen 4 architecture, codenamed Raphael, and is manufactured on a 5 nm process by TSMC. It features 12 cores and 24 threads, with a base clock of 3.70 GHz and a boost clock of 5.40 GHz. The Intel Core Ultra 5 235A uses the Arrow Lake architecture, specifically Arrow Lake-S, and is manufactured on a 3 nm process, also by TSMC. It features 14 cores and 14 threads, with a base clock of 3.40 GHz and a boost clock of 5.00 GHz. The Intel chip has a higher transistor count (17,800 million vs 13,140 million) and a larger die size (243 mm² vs 2x 71 mm²).

Cache configurations differ significantly. The Ryzen 9 7900 has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of shared L3 cache. The Core Ultra 5 235A has 192 KB of L1 cache per core, 3 MB of L2 cache per core, and only 24 MB of shared L3 cache. This means the AMD chip has substantially more total cache, which contributes to its strong performance in data-heavy workloads. The Intel chip’s larger per-core L1 and L2 caches help with single-threaded responsiveness.

Memory support also differs. Both support DDR5 memory on a dual-channel bus, but the Intel chip has a higher memory bandwidth of 102.4 GB/s versus the AMD chip’s 83.2 GB/s. The AMD chip supports ECC memory, while the Intel chip does not. PCIe lanes differ as well: the Ryzen 9 7900 offers Gen 5 with 24 lanes (CPU only), while the Core Ultra 5 235A offers Gen 5 with 20 lanes (CPU only). The AMD chip has an unlocked multiplier, while the Intel chip is locked. The integrated graphics differ: AMD uses Radeon Graphics, while Intel uses Arc Xe-LPG Graphics 24EU.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 7900 has 12 cores and 24 threads. The Intel Core Ultra 5 235A has 14 cores and 14 threads, meaning it lacks hyper-threading.

Q: Which chip is faster in single-threaded benchmarks?

A: The Intel Core Ultra 5 235A wins all single-threaded tests. It leads by 32.1% in Cinebench R15 singlecore (464 vs 315) and by 57.3% in Cinebench R23 singlecore (4607 vs 1966).

Q: Which chip has more L3 cache?

A: The AMD Ryzen 9 7900 has 64 MB of shared L3 cache, while the Intel Core Ultra 5 235A has 24 MB of shared L3 cache.

Q: Do both processors support DDR5 memory?

A: Yes, both support DDR5 memory on a dual-channel bus. The Intel chip has higher memory bandwidth at 102.4 GB/s compared to the AMD chip’s 83.2 GB/s.

Q: Which processor supports ECC memory?

A: The AMD Ryzen 9 7900 supports ECC memory. The Intel Core Ultra 5 235A does not.

Q: Which chip has a higher boost clock?

A: The AMD Ryzen 9 7900 has a boost clock of 5.40 GHz, while the Intel Core Ultra 5 235A has a boost clock of 5.00 GHz.

Specification Differences

The following table outlines the key specifications where the two processors differ:

| Specification | AMD Ryzen 9 7900 | Intel Core Ultra 5 235A |

|---|---|---|

| Cores | 12 | 14 |

| Threads | 24 | 14 |

| Base Clock | 3.70 GHz | 3.40 GHz |

| Boost Clock | 5.40 GHz | 5.00 GHz |

| Architecture | Zen 4 | Arrow Lake |

| Process Node | 5 nm | 3 nm |

| Transistors | 13,140 million | 17,800 million |

| Die Size | 2x 71 mm² | 243 mm² |

| L1 Cache | 64 KB (per core) | 192 KB (per core) |

| L2 Cache | 1 MB (per core) | 3 MB (per core) |

| L3 Cache | 64 MB (shared) | 24 MB (shared) |

| Memory Bandwidth | 83.2 GB/s | 102.4 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 5, 24 Lanes | Gen 5, 20 Lanes |

| Integrated Graphics | Radeon Graphics | Arc Xe-LPG Graphics 24EU |

| Multiplier Unlocked | Yes | No |

| Launch MSRP | $429 | $269 |

Head-to-Head Benchmarks

The benchmark results reveal a clear division of labor between the two chips. The AMD Ryzen 9 7900 wins decisively in integer-heavy and data-processing tasks. Its most significant victory is in PassMark integer math, where it scores 164075 versus the Core Ultra 5 235A’s 88626, a massive 85.1% advantage. This is the largest delta in the entire comparison. The Ryzen 9 7900 also excels in data compression, scoring 577847 versus 393800 (46.7% higher), and in random string sorting, scoring 68474 versus 49489 (38.4% higher). In extended instructions, the AMD chip leads by 33.6% (42253 vs 31625). Its multi-threaded wins include PassMark multithread (48347 vs 38392, a 25.9% delta) and physics (3059 vs 2437, a 25.5% delta). In data encryption, the AMD chip wins by 15.2% (34708 vs 30136). The Ryzen 9 7900’s Cinebench R15 multicore score of 4020 beats the Intel chip’s 3289 by 22.2%.

The Intel Core Ultra 5 235A counters with dominant single-threaded performance. Its Cinebench R23 singlecore score of 4607 is 57.3% higher than the Ryzen 9 7900’s 1966, the largest margin in the Intel chip’s favor. In Cinebench R15 singlecore, it scores 464 versus 315, a 32.1% advantage. The Intel chip also wins PassMark single-thread (4557 vs 4130, a 9.4% delta) and floating-point math (118778 vs 97943, a 17.5% delta). Interestingly, the Intel chip wins Cinebench R23 multicore with a score of 32633 versus 24776, a 24.1% advantage, which runs counter to its losses in other multi-threaded tests. The Intel chip also edges out the AMD chip in PassMark find prime numbers (392 vs 380, a 3.1% delta).

The split is stark: the AMD chip wins 8 tests, the Intel chip wins 7. However, the magnitude of the AMD wins is often larger, particularly in integer math and data compression. The Intel chip’s wins are concentrated in single-threaded and floating-point tests, with its Cinebench R23 multicore victory being a notable exception. The data suggests that the Ryzen 9 7900 is the more versatile processor for mixed workloads, while the Core Ultra 5 235A excels in scenarios prioritizing single-core speed.