AMD Ryzen 7 5825C vs Intel Core i9-9900T Comparison

The Verdict

The data is unambiguous here. The AMD Ryzen 7 5825C wins every single benchmark recorded in the database, with a consistent advantage of roughly 11.5% to 11.6% across all Cinebench tests. The Intel Core i9-9900T, despite being a desktop part with a higher base clock, cannot match the newer AMD architecture in any measured workload. The Ryzen 7 5825C is the clear pick for anyone who prioritizes raw compute performance in both single-threaded and multi-threaded tasks.

That said, the Intel part is not without its own context. The Core i9-9900T sits at the same 55th percentile among all CPUs, meaning both chips land in the upper-middle tier of the overall performance distribution. The AMD chip's average benchmark score is 3579 versus 3499 for Intel, a gap of about 2.3% in average terms, even though the head-to-head Cinebench deltas are much larger. The i9-9900T is end-of-life, has a higher TDP of 35 watts versus 15 watts, and offers no benchmark win anywhere in the recorded data. For a builder choosing between these two today, the Ryzen 7 5825C is the superior processor on every measurable axis in this database.

The verdict is simple: if you need the best possible Cinebench scores and lower power draw, choose the AMD Ryzen 7 5825C. If you are constrained to an Intel Socket 1151 platform or need a desktop form factor with PCIe Gen 3 and 16 lanes, the Core i9-9900T is the only one that fits those specific platform requirements, but you will sacrifice roughly 11.6% performance in every recorded benchmark.

Architecture Differences

The architectural gap between these two processors is substantial. The AMD Ryzen 7 5825C is built on Zen 3 architecture with the Cezanne-U codename, fabricated on a 7 nm process at TSMC. The Intel Core i9-9900T uses Coffee Lake architecture with the Coffee Lake-R codename, built on Intel's 14 nm process. This process node difference alone explains a large portion of the performance and efficiency gap: the AMD part packs 10,700 million transistors into a 180 mm² die, while the Intel part's transistor count is not recorded in the database, though its die size is marginally larger at 180.3 mm².

Cache configurations also differ in meaningful ways. Both chips share the same L1 cache at 64 KB per core and the same L3 cache at 16 MB shared. The L2 cache, however, is twice as large on the AMD side: 512 KB per core versus 256 KB per core on Intel. That extra L2 capacity gives the Ryzen 7 5825C more room for frequently accessed data close to the cores, which contributes to its single-thread advantage.

The integrated graphics differ as well. AMD pairs the Ryzen 7 5825C with Radeon Vega 8, while Intel uses UHD Graphics 630. Neither part supports ECC memory, and both are dual-channel DDR4 designs. The AMD chip tops out at 51.2 GB/s memory bandwidth, while the Intel part is rated at 42.7 GB/s, a 20% gap in theoretical memory throughput. PCIe support also differs: the AMD chip offers Gen 3 with 8 lanes (CPU only), while Intel provides Gen 3 with 16 lanes (CPU only). The AMD part is a mobile segment chip on AMD Socket FP6, whereas the Intel part is a desktop chip on Intel Socket 1151. Production status tells the rest of the story: the Ryzen 7 5825C is active, and the Core i9-9900T is end-of-life.

Head-to-Head Benchmarks

Across all six recorded Cinebench comparisons, the AMD Ryzen 7 5825C takes every round. The smallest win is 11.5% in Cinebench R15 single-core, where AMD scores 175 against Intel's 157. The largest wins are 11.6% in every other test category: R15 multi-core (1247 versus 1117), R20 multi-core (5197 versus 4658), R20 single-core (733 versus 657), R23 multi-core (12376 versus 11091), and R23 single-core (1747 versus 1565). The consistency of the delta, almost exactly 11.6% across five of six tests, indicates a structural advantage rather than a workload-specific quirk.

The single-core results deserve special attention. In Cinebench R23 single-core, the AMD chip scores 1747, which is 11.6% ahead of Intel's 1565. This is notable because the Intel part has a higher base clock (2.10 GHz versus 2.00 GHz) and a nearly identical boost clock (4.40 GHz versus 4.50 GHz). Despite the similar clock envelope, the Zen 3 architecture delivers the win. The same pattern holds in Cinebench R20 single-core: AMD at 733 versus Intel at 657, an 11.6% advantage. In R15 single-core, the delta narrows slightly to 11.5% with scores of 175 and 157.

Multi-threaded results follow the same script. The AMD chip's 8 cores and 16 threads with 512 KB L2 per core and 16 MB shared L3 outperform Intel's identical core and thread count. In R23 multi-core, the margin is 1285 points (12376 versus 11091). In R20 multi-core, it is 539 points (5197 versus 4658). In R15 multi-core, it is 130 points (1247 versus 1117). The database also records a Geekbench result for the Intel part: 7298 multi-core and 1452 single-core. No Geekbench score is recorded for the AMD chip, so a direct comparison in that suite is not possible from the data.

FAQ

Q: Which CPU has the higher boost clock?

A: The AMD Ryzen 7 5825C boosts to 4.50 GHz, while the Intel Core i9-9900T boosts to 4.40 GHz. The AMD part is 0.10 GHz higher.

Q: Which chip consumes less power?

A: The AMD Ryzen 7 5825C has a TDP of 15 watts, while the Intel Core i9-9900T is rated at 35 watts. The AMD part uses less than half the power budget.

Q: Are both CPUs 8-core, 16-thread processors?

A: Yes. Both the AMD Ryzen 7 5825C and the Intel Core i9-9900T have 8 cores and 16 threads.

Q: Which CPU has more L2 cache?

A: The AMD Ryzen 7 5825C has 512 KB of L2 cache per core, double the 256 KB per core found on the Intel Core i9-9900T.

Q: What is the Intel Core i9-9900T's launch MSRP?

A: The launch MSRP for the Intel Core i9-9900T is $423. The AMD chip has no recorded launch MSRP.

Q: Which CPU is still in production?

A: The AMD Ryzen 7 5825C has an active production status, while the Intel Core i9-9900T is marked as end-of-life.

Where Each One Wins

The AMD Ryzen 7 5825C wins everywhere the database has measurements. It takes all six head-to-head Cinebench comparisons, with deltas between 11.5% and 11.6%. This includes both single-thread and multi-thread workloads, so there is no workload category where the Intel part can claim an edge based on recorded data. The AMD chip also wins on efficiency: a 15 watt TDP versus 35 watts means significantly less heat and power draw for better performance. For mobile or compact systems where thermals and battery life matter, the AMD part is the obvious choice.

The Intel Core i9-9900T does have one clear platform advantage: PCIe connectivity. It provides Gen 3 with 16 lanes (CPU only), while the AMD chip provides Gen 3 with 8 lanes (CPU only). For a desktop build that needs more expansion slots or higher-bandwidth devices directly attached to the CPU, the Intel part offers twice the lane count. The Intel chip is also a desktop segment part on Socket 1151, which means it fits into standard desktop motherboards, whereas the AMD chip is a mobile segment part on Socket FP6. If you already own an LGA 1151 board and want to reuse it, the Core i9-9900T is the compatible upgrade path. Its memory bandwidth is lower at 42.7 GB/s versus 51.2 GB/s, and its L2 cache is half the size, but the 16 PCIe lanes are a real specification win for desktop expansion.

For raw compute, however, the data offers no reason to choose Intel. The AMD Ryzen 7 5825C is faster in every recorded benchmark, more power-efficient, and still in production. The Intel part is end-of-life and only makes sense for platform-specific builds where the socket and PCIe lane count are non-negotiable requirements.

Specification Differences

The two processors differ in nearly every major specification field. The AMD Ryzen 7 5825C uses a 7 nm TSMC process, while the Intel Core i9-9900T uses Intel's 14 nm process. The AMD chip has a base clock of 2.00 GHz and a boost clock of 4.50 GHz; the Intel chip has a base clock of 2.10 GHz and a boost clock of 4.40 GHz. TDP is 15 watts for AMD and 35 watts for Intel. The AMD part is on AMD Socket FP6, the Intel part on Intel Socket 1151.

Cache differs in L2 only: AMD provides 512 KB per core, Intel provides 256 KB per core. Both have 64 KB L1 per core and 16 MB shared L3. Memory bandwidth is 51.2 GB/s for AMD versus 42.7 GB/s for Intel, both dual-channel DDR4. PCIe support is Gen 3 with 8 lanes for AMD versus Gen 3 with 16 lanes for Intel. Integrated graphics are Radeon Vega 8 on AMD and UHD Graphics 630 on Intel. The AMD chip is a mobile segment part, active production, released on 2022-05-04. The Intel chip is a desktop segment part, end-of-life, released on 2019-04-22, with a launch MSRP of $423. Neither chip supports ECC memory, and neither has an unlocked multiplier. The Intel part has a recorded part number of SRG1B; the AMD part's part number is listed as 100-000000xxx. Die size is nearly identical: 180 mm² for AMD versus 180.3 mm² for Intel, though the AMD chip packs 10,700 million transistors while Intel's transistor count is not recorded in the database.