AMD Ryzen 7 9850X3D vs Intel Core 5 120U Comparison

The AMD Ryzen 7 9850X3D and the Intel Core 5 120U occupy opposite ends of the computing spectrum, one a desktop flagship and the other a mobile efficiency part. The benchmark data shows a complete sweep for the AMD processor, with 15 wins out of 15 head-to-head tests, but the nature of those wins and the architectural context reveal two very different tools designed for distinct jobs.

Where Each One Wins

The AMD Ryzen 7 9850X3D wins every single benchmark in the comparison, which makes the use-case split less about which processor wins a given test and more about what each processor's design intends to accomplish. The data shows the AMD chip dominating across all compute categories, but the magnitude of that dominance tells the story.

For the AMD Ryzen 7 9850X3D, the wins are absolute and often overwhelming. In multi-core workloads, the advantage is dramatic. The Cinebench R23 multi-core score of 22807 versus 6659 represents a 242.5% delta. The PassMark multi-thread score of 41318 versus 15042 shows a 174.7% advantage. These are not marginal differences; they indicate a processor built for sustained, heavy parallel computation. The PassMark physics test shows a 345.1% delta (4171 versus 937), and the extended instructions test shows a 322.3% delta (39272 versus 9299). The AMD chip is clearly designed for desktop-grade workloads like rendering, scientific computation, and content creation where every additional core and thread contributes directly to throughput.

The Intel Core 5 120U, despite losing every benchmark, still has a defined role based on its specifications. It uses a 15 TDP versus the AMD's 120 TDP, and it is a mobile processor on Intel BGA 1744. Its wins, if they existed, would be in power efficiency and portability, but the benchmark data here does not include power draw measurements. The data does show its integrated graphics are the Iris Xe Graphics 80EU, while the AMD uses Radeon Graphics. The Intel chip supports both DDR4 and DDR5 memory, whereas the AMD supports only DDR5. These are not performance wins but feature differences that define its target market as thin-and-light laptops where battery life and low heat output matter more than raw compute.

The Verdict

The data is unambiguous: the AMD Ryzen 7 9850X3D is the superior processor in every measured benchmark. Its average benchmark score of 58386 places it at the 92nd percentile of all CPUs, while the Intel Core 5 120U sits at the 72nd percentile with an average score of 17898. The nearest rivals for the AMD chip are high-end desktop and workstation parts like the Intel Xeon Platinum 8260M (0.1% delta), Intel Xeon w5-2545 (-0.2% delta), and Intel Core i9-14900 (0.5% delta). This places the AMD firmly in the enthusiast desktop category.

The Intel Core 5 120U, by contrast, sits among older desktop parts and lower-end mobile chips. Its nearest rivals include the AMD Ryzen 5 3600XT (0% delta), Intel Core 5 221TE (0.2% delta), and AMD Ryzen 5 1600 (-0.5% delta). These are not current-generation performance parts. The mobile chip is competing with multi-year-old desktop processors, which indicates its target is not high-performance computing but rather everyday mobile use.

Who should pick which comes down to the platform. The AMD Ryzen 7 9850X3D requires AMD Socket AM5 and a 120 TDP, which means a desktop motherboard with adequate cooling. Its 8 cores and 16 threads, base clock of 4.70 GHz, and boost clock of 5.60 GHz make it a desktop workhorse. The Intel Core 5 120U with 10 cores and 12 threads, a 1.40 GHz base clock, and 5.00 GHz boost clock, is soldered to a mobile board. It cannot be upgraded or repurposed. The data shows the AMD for anyone needing maximum compute, and the Intel for anyone needing a low-power mobile solution where the benchmarks are simply not the priority.

Head-to-Head Benchmarks

The largest margin comes from the PassMark find prime numbers test, where the AMD scores 435 against the Intel's 53, a delta of 720.8%. This is a test that heavily favors integer throughput and cache efficiency, and the AMD's 96 MB of shared L3 cache versus the Intel's 12 MB explains much of the gap. The AMD's 3D V-Cache technology, implied by the X3D suffix, gives it a massive cache advantage.

The extended instructions test shows a 322.3% delta with scores of 39272 and 9299. This indicates the AMD's Zen 5 architecture executes advanced instruction sets far more efficiently. The physics test follows with a 345.1% delta (4171 versus 937), which reflects the AMD's superior multi-core scaling.

In multi-core rendering, the Cinebench R23 score of 22807 versus 6659 (242.5% delta) and the R15 score of 3551 versus 1150.5 (208.6% delta) show consistent, massive advantages. The AMD's 8 cores with 16 threads outperform the Intel's 10 cores with 12 threads, which suggests the AMD's per-core performance is vastly higher. The Intel's core count advantage does not translate into performance because its cores are lower-clocked and less capable.

Single-core tests show a smaller but still significant gap. The Cinebench R23 single-core score is 2228 versus 1756.5, a 26.8% delta. The PassMark single-thread score is 4704 versus 3479, a 35.2% delta. The Cinebench R15 single-core score shows a 40% delta with 343 versus 245. These numbers indicate the AMD's base clock of 4.70 GHz and boost of 5.60 GHz give it a substantial single-thread advantage over the Intel's 1.40 GHz base and 5.00 GHz boost.

Memory and data work follows the same pattern. The PassMark data compression score is 474501 versus 166432, a 185.1% delta. Data encryption shows 22856 versus 10453, a 118.7% delta. Floating point math is 81998 versus 36026, a 127.6% delta. Integer math is 123140 versus 52280, a 135.5% delta. Random string sorting is 49764 versus 19060, a 161.1% delta. Every single test confirms the AMD's dominance, with deltas ranging from 26.8% in the closest single-core test to 720.8% in the most cache-sensitive test.

FAQ

Q: Which processor has more cores?

A: The Intel Core 5 120U has 10 cores and 12 threads, while the AMD Ryzen 7 9850X3D has 8 cores and 16 threads. Despite fewer cores, the AMD has more threads due to simultaneous multithreading.

Q: Which processor has the higher clock speed?

A: The AMD Ryzen 7 9850X3D has a base clock of 4.70 GHz and a boost clock of 5.60 GHz. The Intel Core 5 120U has a base clock of 1.40 GHz and a boost clock of 5.00 GHz.

Q: What is the largest benchmark margin between the two?

A: The largest margin is in the PassMark find prime numbers test, where the AMD scores 435 versus the Intel's 53, a delta of 720.8%.

Q: How do their caches compare?

A: The AMD Ryzen 7 9850X3D has 96 MB of shared L3 cache, while the Intel Core 5 120U has 12 MB of shared L3 cache. Both have 80 KB of L1 cache per core, but the AMD has 1 MB of L2 per core and the Intel has 1.25 MB of L2 per core.

Q: What memory types does each support?

A: The AMD Ryzen 7 9850X3D supports DDR5 only, with an 89.6 GB/s memory bandwidth. The Intel Core 5 120U supports both DDR4 and DDR5, with no recorded memory bandwidth in the data.

Q: Are both processors currently in production?

A: Yes, both are listed with an Active production status. The AMD was released on 2026-01-28 and the Intel on 2024-01-07.

Architecture Differences

The AMD Ryzen 7 9850X3D uses the Zen 5 architecture with the Granite Ridge codename, built on a 4 nm process at TSMC. It uses 8,315 million transistors on a 70.6 mm² die. The architecture is designed for high clock speeds and high throughput, with a 120 TDP enabling sustained performance. It supports PCIe Gen 5 with 24 lanes from the CPU and includes ECC memory support. Its integrated graphics are Radeon Graphics, and it has an unlocked multiplier for overclocking.

The Intel Core 5 120U uses the Raptor Lake architecture with the Raptor Lake-U codename, built on a 10 nm process at Intel. The data does not list its transistor count or die size. It is designed for low power consumption with a 15 TDP, and it supports PCIe Gen 4 with 8 lanes from the CPU. It does not support ECC memory, and its multiplier is locked. Its integrated graphics are the Iris Xe Graphics 80EU. The Intel chip supports both DDR4 and DDR5 memory, while the AMD supports only DDR5.

The cache architectures differ significantly. The AMD has 1 MB of L2 cache per core and 96 MB of shared L3 cache. The Intel has 1.25 MB of L2 per core and only 12 MB of shared L3. The AMD's larger L3 cache, combined with its 3D V-Cache design, gives it a massive advantage in cache-sensitive workloads like the prime number test. The Intel's smaller cache reflects its mobile, low-power design priorities.

Specification Differences

The two processors differ across nearly every specification. The AMD uses AMD Socket AM5, while the Intel uses Intel BGA 1744. The AMD is a desktop part, while the Intel is a mobile part. The AMD has 8 cores and 16 threads, while the Intel has 10 cores and 12 threads. The AMD's base clock is 4.70 GHz versus the Intel's 1.40 GHz. The AMD's boost clock is 5.60 GHz versus the Intel's 5.00 GHz. The AMD's TDP is 120, while the Intel's is 15.

The AMD's process node is 4 nm from TSMC, while the Intel's is 10 nm from Intel. The AMD uses 8,315 million transistors on a 70.6 mm² die, while the Intel's transistor count and die size are not recorded. The AMD has 96 MB of shared L3 cache, while the Intel has 12 MB. The AMD supports only DDR5 memory with an 89.6 GB/s bandwidth, while the Intel supports DDR4 and DDR5 with no recorded bandwidth. The AMD supports ECC memory, the Intel does not. The AMD has PCIe Gen 5 with 24 lanes, the Intel has Gen 4 with 8 lanes. The AMD's integrated graphics are Radeon Graphics, the Intel's are Iris Xe Graphics 80EU. The AMD has an unlocked multiplier, the Intel does not. The AMD's launch MSRP was $499, while the Intel has no recorded launch MSRP. The AMD's release date is 2026-01-28, the Intel's is 2024-01-07. The AMD's part number is 100-000001973, the Intel's is SRM7P.