AMD Ryzen 9 7900 vs Intel Core Ultra 5 235 Comparison

The benchmark data presents a clear contrast between two 65W desktop processors: the AMD Ryzen 9 7900 and the Intel Core Ultra 5 235. The AMD part, with its 12 cores and 24 threads, dominates the multi-threaded workload charts, while the Intel chip, with 14 cores and 14 threads, shows surprising strength in specific single-thread and floating-point tasks. The overall average benchmark scores are nearly identical, with the Intel Core Ultra 5 235 edging ahead at 50598 compared to the Ryzen 9 7900's 50097, a difference of roughly 1%. Both processors sit at the 93rd percentile of all CPUs, indicating they are top-tier performers. This analysis will dissect the head-to-head results, architectural differences, and specification gaps to determine which processor is better suited for which tasks.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core Ultra 5 235 has a marginally higher average benchmark score of 50598, compared to the AMD Ryzen 9 7900's 50097. This places the Intel part 1% ahead of the AMD chip in the aggregate data. Both CPUs are in the 93rd percentile of all CPUs.

Q: How large is the performance gap in multi-threaded workloads?

A: The AMD Ryzen 9 7900 demonstrates a dominant lead. In the Cinebench R23 multicore test, it scores 41083 versus Intel's 34129, a 20.4% advantage. The PassMark multithread test shows a similar 20.3% lead, with scores of 48347 and 40192 respectively.

Q: Does the Intel Core Ultra 5 235 win any benchmark tests?

A: Yes, the Intel chip wins 4 out of the 17 head-to-head benchmarks. It notably wins the PassMark single-thread test (4542 vs 4130, a 9.1% lead) and the PassMark floating-point math test (125202 vs 97943, a 21.8% lead). It also edges out a win in the PassMark find prime numbers test.

Q: What is the difference in core and thread counts?

A: The AMD Ryzen 9 7900 has 12 cores and 24 threads, while the Intel Core Ultra 5 235 has 14 cores and 14 threads. The AMD processor's higher thread count is a key factor in its multi-threaded performance advantage.

Q: What are the boost clock speeds for each processor?

A: The AMD Ryzen 9 7900 has a boost clock of 5.40 GHz, while the Intel Core Ultra 5 235 has a boost clock of 5.00 GHz. The AMD part also has a higher base clock of 3.70 GHz compared to Intel's 3.40 GHz.

Q: Which processor has a larger L3 cache?

A: The AMD Ryzen 9 7900 features a 64 MB shared L3 cache, which is significantly larger than the 24 MB shared L3 cache found on the Intel Core Ultra 5 235. This difference may contribute to the AMD chip's strong performance in data-heavy tasks.

The Verdict

The data suggests a straightforward split. For users whose workloads are heavily multi-threaded, such as video rendering, 3D modeling, or software compilation, the AMD Ryzen 9 7900 is the clear choice. It wins the vast majority of benchmarks, including all Cinebench tests, with a consistent 20.4% advantage in both single and multi-core versions of the R15, R20, and R23 tests. Its wins in PassMark integer math (75.3% ahead), data compression (39.6% ahead), and random string sorting (37.9% ahead) further cement its status as a compute powerhouse. The Intel Core Ultra 5 235, conversely, is the pick for users prioritizing raw single-thread responsiveness and specific mathematical workloads. Its 9.1% lead in PassMark single-thread and a 21.8% lead in floating-point math are significant, but its overall benchmark score is nearly identical to the AMD part, suggesting that in a mixed workload, the two would feel similar.

The choice hinges on the nature of the work. The Ryzen 9 7900 is a multi-core monster that excels in parallel tasks. The Core Ultra 5 235 is a more specialized chip, winning in specific areas but losing the overall workload war. The 13-to-4 split in benchmark wins heavily favors the AMD processor. While the Intel chip has a slightly higher average score, this is deceptive, as the AMD chip's wins are often by larger margins than the Intel chip's. For a general-purpose desktop CPU, the data indicates the AMD Ryzen 9 7900 is the more versatile and better-performing processor. The Intel part is for a niche user who knows their applications are heavily reliant on single-thread speed or floating-point calculations.

Head-to-Head Benchmarks

The Cinebench suite provides the most striking contrast. Across all three versions (R15, R20, R23), the AMD Ryzen 9 7900 posts a consistent 20.4% lead over the Intel Core Ultra 5 235 in both single and multi-core tests. For instance, in Cinebench R23 multicore, the AMD scores 41083 against Intel's 34129. The single-core R23 results (5799 vs 4818) show that AMD's advantage is not just about core count, but also about per-core efficiency in this workload.

The PassMark suite tells a more nuanced story. The AMD Ryzen 9 7900's largest victory is in integer math, where it scores 164075 compared to Intel's 93621, a massive 75.3% delta. This is followed by a 39.6% win in data compression (577847 vs 413865) and a 37.9% win in random string sorting (68474 vs 49667). These results point to the AMD chip's superior handling of complex, multi-threaded logic and data manipulation. Conversely, the Intel Core Ultra 5 235 shows its strengths in floating-point math, scoring 125202 against AMD's 97943, a 21.8% advantage. It also wins the single-thread test with a score of 4542 versus 4130, a 9.1% lead. In the find prime numbers test, the Intel chip wins by a narrow 4% margin (396 vs 380). The data shows that while the AMD chip crushes in multi-threaded integer and data tasks, the Intel chip is better at certain math functions and single-threaded execution.

Specification Differences

The two processors differ significantly in their core architecture. The AMD Ryzen 9 7900 features 12 cores and 24 threads, while the Intel Core Ultra 5 235 offers 14 cores but only 14 threads. This indicates the AMD chip uses simultaneous multithreading, while the Intel chip does not. Clock speeds also differ, with the AMD part having a base clock of 3.70 GHz and a boost of 5.40 GHz, compared to Intel's 3.40 GHz base and 5.00 GHz boost. Both have a 65W TDP.

Memory bandwidth is another differentiator. The Intel Core Ultra 5 235 supports 102.4 GB/s, which is higher than the AMD Ryzen 9 7900's 83.2 GB/s. Both support dual-channel DDR5 memory. The AMD chip supports ECC memory, while the Intel chip does not. PCIe lane counts also differ, with the AMD Ryzen 9 7900 offering 24 lanes of Gen 5 compared to the Intel's 20 lanes. The AMD processor has an unlocked multiplier, while the Intel part is locked. The integrated graphics differ as well, with AMD featuring Radeon Graphics and Intel featuring Arc Xe-LPG Graphics 24EU.

Architecture Differences

The fundamental architectures are based on different node processes and designs. The AMD Ryzen 9 7900 is built on a 5 nm process by TSMC, while the Intel Core Ultra 5 235 uses a more advanced 3 nm process, also by TSMC. This is reflected in the transistor counts, with the Intel chip having 17,800 million transistors compared to AMD's 13,140 million. The die sizes also differ significantly, with the Intel chip at 243 mm² versus AMD's 2x 71 mm² design.

The cache hierarchy reveals different design philosophies. The AMD Ryzen 9 7900, based on the Zen 4 architecture (codenamed Raphael), has a 64 MB shared L3 cache, which is substantially larger than the Intel Core Ultra 5 235's 24 MB shared L3 cache. However, the Intel chip has a larger per-core L1 cache (192 KB) and L2 cache (3 MB) compared to AMD's 64 KB and 1 MB per core. The Intel part, based on the Arrow Lake architecture (codenamed Arrow Lake-S), uses a different core layout to achieve its 14 cores. The AMD chip uses a chiplet design, suggested by its "2x 71 mm²" die size, while the Intel chip appears to be a monolithic design.

Where Each One Wins

The AMD Ryzen 9 7900 is the definitive winner in multi-threaded, parallel processing tasks. The data shows it is 20.4% ahead in all Cinebench multi-core tests and 20.3% ahead in the PassMark multithread test. It is the clear choice for video editing, 3D rendering, and other creative workloads that utilize all available cores. Its massive 75.3% lead in integer math and 39.6% lead in data compression also make it superior for code compilation, database operations, and file archiving. The processor's 24 threads allow it to handle heavy multitasking and virtual machine workloads more effectively. With 13 wins out of 17 benchmarks, it is the dominant overall performer.

The Intel Core Ultra 5 235 wins in fewer, but specific, areas. Its 9.1% lead in the PassMark single-thread test suggests it may have a slight edge in lightly-threaded applications and general system responsiveness. More importantly, its 21.8% win in floating-point math indicates a strong advantage for scientific computing, financial modeling, and any application that relies heavily on complex mathematical calculations. Its higher memory bandwidth (102.4 GB/s vs 83.2 GB/s) could also provide a benefit in memory-bandwidth-sensitive tasks. The narrow 4% win in the find prime numbers test is a curious data point but does not change the overall picture. The Intel chip is the winner for users whose primary applications are single-threaded or float-point intensive.