AMD Ryzen 7 9800X3D vs Intel Core Ultra 5 235T Comparison

Where Each One Wins

The benchmark data splits these two desktop processors into clearly defined roles. The AMD Ryzen 7 9800X3D wins 10 of the 15 recorded head-to-head comparisons, while the Intel Core Ultra 5 235T takes 5. The AMD chip dominates in compute-heavy parallel workloads and memory-sensitive tasks. Its wins include PassMark integer math (38.5% ahead), data compression (58.6% ahead), extended instructions (67.2% ahead), prime number finding (33% ahead), random string sorting (37.2% ahead), and the PassMark multithread test (29.4% ahead). The physics test shows the largest gap of any single benchmark, with AMD leading by 89.3%.

The Intel Core Ultra 5 235T claims its victories in different territory. It leads in Cinebench R23 multicore by 11.4%, Cinebench R23 single-core by 43.8%, Cinebench R15 single-core by 12.1%, PassMark floating point math by 25.4%, and PassMark data encryption by 5.5%. The single-core Cinebench results are particularly striking, as the Intel part more than doubles the AMD chip's lead in that specific test. Floating point math also favors Intel substantially, suggesting a different arithmetic execution pipeline.

For users deciding based on workload type, the data points to AMD for integer math, compression, sorting, physics simulation, and general multithreaded throughput. The Intel processor is better suited for single-core responsiveness in short bursts, floating point calculations, and encryption tasks.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 7 9800X3D records an average benchmark score of 39,768, while the Intel Core Ultra 5 235T averages 38,561. The AMD part sits at the 87th percentile among all CPUs, two points ahead of Intel's 86th percentile.

Q: How do the two compare on the PassMark multithread test?

A: The AMD Ryzen 7 9800X3D scores 40,009 versus the Intel Core Ultra 5 235T's 30,918, a 29.4% advantage for AMD. This is one of the larger gaps in the comparison.

Q: What is the largest single benchmark win for either processor?

A: The AMD Ryzen 7 9800X3D wins PassMark physics by 89.3%, scoring 4,083 against Intel's 2,157. For Intel, the largest win is Cinebench R23 single-core by 43.8%, with scores of 3,703 versus 2,080.

Q: Do the two processors have the same core and thread counts?

A: No. The AMD Ryzen 7 9800X3D has 8 cores and 16 threads, while the Intel Core Ultra 5 235T has 14 cores and 14 threads. Intel has more physical cores but fewer threads due to its hybrid design.

Q: Which processor has the higher boost clock?

A: The AMD Ryzen 7 9800X3D boosts to 5.20 GHz, while the Intel Core Ultra 5 235T boosts to 5.00 GHz. The AMD part also has a higher base clock at 4.70 GHz versus 2.20 GHz for Intel.

Q: Which processor has more L3 cache?

A: The AMD Ryzen 7 9800X3D has 96 MB of shared L3 cache, compared to 24 MB on the Intel Core Ultra 5 235T. This is a 4x difference.

Head-to-Head Benchmarks

The Cinebench R23 multi-core test presents a surprising result. The Intel Core Ultra 5 235T scores 26,232 against the AMD Ryzen 7 9800X3D's 23,230, an 11.4% advantage for Intel. This is despite the AMD part having a much higher base clock and a 96 MB L3 cache. The Intel's 14 physical cores, while not hyperthreaded, still outpace the 8-core AMD chip in this rendering workload. In Cinebench R15 multi-core, the situation reverses: AMD wins 3,647 to 2,644, a 37.9% margin. The older benchmark favors AMD, while the newer one favors Intel.

Single-core results show a dramatic split between the two Cinebench versions. In R15, Intel wins by 12.1% (373 versus 328). In R23, Intel's lead expands to 43.8% (3,703 versus 2,080). The AMD part's single-core score of 2,080 in R23 is notably lower than its R15 performance, suggesting a more pronounced gap in the newer workload.

In PassMark tests, AMD dominates most integer and memory operations. The data compression score is 468,017 versus 295,100, a 58.6% lead. Extended instructions show 38,808 versus 23,212, a 67.2% lead. Integer math is 116,709 versus 84,244, a 38.5% lead. Random string sorting is 48,526 versus 35,377, a 37.2% lead. Physics is the largest gap: 4,083 versus 2,157, an 89.3% lead.

Intel wins two PassMark categories. Floating point math shows 106,546 versus 79,456, a 25.4% lead for Intel. Data encryption is 23,457 versus 22,158, a 5.5% lead. The single-thread PassMark test is close: AMD leads 4,430 to 4,339, a 2.1% margin, which is the smallest recorded gap in the entire comparison.

Specification Differences

The two processors differ on nearly every core specification. The AMD Ryzen 7 9800X3D uses 8 cores and 16 threads, while the Intel Core Ultra 5 235T uses 14 cores and 14 threads. Intel trades threading for physical core count. Base clocks are 4.70 GHz versus 2.20 GHz, a substantial difference in favor of AMD. Boost clocks are closer: 5.20 GHz versus 5.00 GHz.

Thermal design power differs significantly. The AMD part has a TDP of 120 watts, while the Intel part has a TDP of 65 watts. This means the Intel chip is rated for substantially lower power draw, though the AMD part's higher TDP corresponds to its higher base clock.

Memory bandwidth also splits. The AMD Ryzen 7 9800X3D has a memory bandwidth of 89.6 GB/s, while the Intel Core Ultra 5 235T has 102.4 GB/s. Both support DDR5 and dual-channel memory. The AMD supports ECC memory, while the Intel does not.

PCIe lanes differ: the AMD has 24 Gen 5 lanes, while the Intel has 20 Gen 5 lanes. Integrated graphics differ: AMD uses Radeon Graphics, Intel uses Arc Xe-LPG Graphics 24EU. The AMD has an unlocked multiplier, the Intel does not. The AMD launched on 2024-11-06 with a launch MSRP of $479, while the Intel launched on 2025-01-06 with a launch MSRP of $247.

Architecture Differences

The AMD Ryzen 7 9800X3D uses the Zen 5 architecture with the Granite Ridge codename. It is built on a 4 nm process at TSMC. The Intel Core Ultra 5 235T uses the Arrow Lake architecture with the Arrow Lake-S codename, built on a 3 nm process at the same foundry. The transistor count differs: AMD has 8,315 million transistors on a 70.6 mm² die, while Intel has 17,800 million transistors on a 243 mm² die.

Cache organization differs significantly. The AMD has 80 KB of L1 per core, 1 MB of L2 per core, and 96 MB of shared L3. The Intel has 192 KB of L1 per core, 3 MB of L2 per core, and 24 MB of shared L3. The AMD's L3 cache is four times larger, which likely contributes to its strong performance in data compression and integer math. The Intel's per-core L1 and L2 caches are larger, which may help its single-core performance.

The AMD's smaller die and fewer transistors suggest a more integrated design, while Intel's larger die accommodates more cores and a bigger L1/L2 footprint. The Intel's 3 nm process is slightly more advanced than AMD's 4 nm process, which may offset the clock speed disadvantage.

The Verdict

The AMD Ryzen 7 9800X3D is the choice for parallel compute, memory-heavy tasks, and physics simulation. Its data shows a 89.3% lead in physics, 58.6% in data compression, and 38.5% in integer math. It also wins the overall PassMark multithread test by 29.4%. For users running compression workloads, scientific simulations, or any application that benefits from a large L3 cache, the AMD part is the stronger pick.

The Intel Core Ultra 5 235T is the choice for single-core speed and floating point math. Its 43.8% lead in Cinebench R23 single-core is the largest single-core gap in the dataset. It also wins floating point math by 25.4%, a category where the AMD is clearly behind. The Intel's lower 65 W TDP and higher memory bandwidth of 102.4 GB/s make it a more power-efficient option for general desktop use, though the AMD has a higher average benchmark score.

For most users, the AMD offers better overall performance, as reflected in its 87th percentile ranking versus Intel's 86th. The AMD also has the advantage of an unlocked multiplier for overclocking, while the Intel does not. However, the Intel costs less at launch. The Intel's stronger single-core performance in Cinebench R23 is an unusual result, but the AMD's dominance in PassMark multithread and physics makes it the more balanced processor for a wide range of applications. The data suggests the AMD Ryzen 7 9800X3D for compute-heavy and data-intensive workloads, and the Intel Core Ultra 5 235T for single-threaded and floating-point scenarios.