AMD Ryzen 5 PRO 5675U vs Intel Core i7-8700B Comparison

Head-to-Head Benchmarks

The recorded data shows a split decision across the six shared benchmark tests, with each processor taking three wins. However, the margins tell a more nuanced story than the win count alone.

The AMD Ryzen 5 PRO 5675U dominates the older Cinebench R15 workloads. In the multicore test, it scores 1326 against the Intel Core i7-8700B's 1005, a 24.2% advantage. The single-core gap is even starker: the AMD part scores 215.5 versus 141, a 34.6% lead. These are the largest deltas in the entire head-to-head set, and they indicate that in legacy rendering workloads, the Zen 3 mobile chip is decisively faster.

The Intel Core i7-8700B fights back in the newer Cinebench R23 tests. Its multicore score of 9977 beats the AMD's 7866.5 by 26.8%, a substantial reversal of the R15 result. The single-core R23 margin is narrow, with Intel at 1408 versus 1387.5, a 1.5% edge. This suggests that Intel's Coffee Lake architecture scales better with the newer Cinebench version's threading and instruction patterns, while AMD's advantage in R15 likely stems from higher per-clock efficiency in that older benchmark.

Geekbench results add another layer. Intel wins the multicore test 5936 to 5496, an 8% margin. AMD wins the single-core test 1637 to 1443, an 11.9% lead. These results align with the overall pattern: AMD has the stronger single-threaded performance in Geekbench, while Intel holds the multi-threaded advantage in both Geekbench and Cinebench R23.

Looking at the broader database context, both processors sit at the 52nd percentile among all CPUs, meaning they occupy similar overall performance tiers. The Intel part's average benchmark score is 3086, while the AMD part's is 2988. The nearest rival for the Intel chip is the Intel Xeon W-2133 at 3087, a 0% difference, followed by the Intel Xeon E5-1660 v3 at 3082 (0.1% ahead) and the Intel Core i7-6850K at 3079 (0.2% ahead). The AMD Ryzen 5 PRO 5675U's nearest rival is the Intel Xeon E-2334 at 2988, a 0% difference, with the Intel Xeon E5-1650 v4 at 2978 (0.3% behind) and the AMD Ryzen 7 PRO 4750U at 2965 (0.8% behind). Notably, the AMD Ryzen 5 5625U, a close relative of the PRO 5675U, scores 3096, which is 0.3% ahead of the Intel i7-8700B, showing how tightly clustered this performance region is.

The data does not support a blanket winner. Instead, it points to workload-specific superiority. The AMD Ryzen 5 PRO 5675U is the clear leader in older Cinebench R15 and Geekbench single-core, while the Intel Core i7-8700B leads in Cinebench R23 and Geekbench multi-core. The magnitude of AMD's R15 win (over 24% in both tests) is larger than Intel's R23 multicore win (26.8% is comparable, but Intel's single-core R23 margin is tiny at 1.5%). For Geekbench, Intel's 8% multicore lead is smaller than AMD's 11.9% single-core lead. Overall, AMD's wins are typically by wider margins in the tests it takes, while Intel's wins are either very large (R23 multicore) or moderate (Geekbench multicore).

The Verdict

From the recorded data alone, the choice depends entirely on the target workload and platform constraints.

Pick the Intel Core i7-8700B if the priority is multi-threaded throughput in modern rendering workloads. Its Cinebench R23 multicore score of 9977 is 26.8% ahead of the AMD part, and its Geekbench multicore score of 5936 is 8% ahead. The database also shows it has a higher average benchmark score (3086 versus 2988), and it matches the AMD part in overall percentile ranking (both at 52). This is a desktop-class 65 W part with 12 threads, and the data indicates it holds the edge in the most recent Cinebench version, which is often used as a proxy for current content-creation performance.

Pick the AMD Ryzen 5 PRO 5675U if the priority is single-threaded performance or legacy benchmark compatibility. Its Cinebench R15 single-core score of 215.5 is 34.6% higher than the Intel part, and its Geekbench single-core score of 1637 is 11.9% higher. It also wins Cinebench R15 multicore by 24.2%. This is a 15 W mobile part, and the data shows it delivers substantially better performance in older rendering tests and in single-threaded Geekbench tasks. For users running software that relies on older Cinebench versions or heavily single-threaded applications, the AMD part is the clear choice.

The tie in wins (3 each) and the identical percentile (52) mean there is no universal recommendation. The Intel part is better for modern multi-core rendering, the AMD part is better for single-core and legacy workloads. The average benchmark score favors Intel slightly (3086 versus 2988), but the difference is within the noise of the nearest-rival cluster.

FAQ

Q: Which processor wins more benchmark tests?

A: Both processors win exactly three tests each. The Intel Core i7-8700B wins Cinebench R23 multicore, Cinebench R23 single-core, and Geekbench multicore. The AMD Ryzen 5 PRO 5675U wins Cinebench R15 multicore, Cinebench R15 single-core, and Geekbench single-core.

Q: How much faster is the AMD part in Cinebench R15 single-core?

A: The AMD Ryzen 5 PRO 5675U scores 215.5 versus the Intel Core i7-8700B's 141, a 34.6% advantage. This is the largest single-test margin in the head-to-head data.

Q: What is the Intel part's biggest win?

A: The Intel Core i7-8700B's largest win is in Cinebench R23 multicore, where it scores 9977 against the AMD part's 7866.5, a 26.8% lead.

Q: How do their average benchmark scores compare?

A: The Intel Core i7-8700B has an average benchmark score of 3086, while the AMD Ryzen 5 PRO 5675U has an average of 2988. Both sit at the 52nd percentile among all CPUs in the database.

Q: Are they close in single-core performance?

A: In Cinebench R23 single-core, they are nearly tied, with Intel at 1408 and AMD at 1387.5, a 1.5% difference. However, in Cinebench R15 single-core and Geekbench single-core, AMD leads by 34.6% and 11.9% respectively.

Q: Which processor has a higher multi-core score in Geekbench?

A: The Intel Core i7-8700B leads in Geekbench multicore with a score of 5936, compared to the AMD Ryzen 5 PRO 5675U's 5496, an 8% advantage.

Specification Differences

The two processors differ across nearly every specification field, reflecting their distinct design targets.

The Intel Core i7-8700B has a base clock of 3.20 GHz and a boost clock of 4.60 GHz, while the AMD Ryzen 5 PRO 5675U has a base clock of 2.30 GHz and a boost clock of 4.30 GHz. The Intel part runs at a 65 W TDP, while the AMD part is rated at 15 W. The Intel chip uses the Intel BGA 1440 socket, the AMD chip uses the AMD Socket FP6.

The Intel part is built on Intel's 14 nm process with a die size of 154 mm², while the AMD part uses TSMC's 7 nm process with a die size of 180 mm² and 10,700 million transistors. The Intel part has 256 KB of L2 cache per core and 12 MB of shared L3 cache, while the AMD part has 512 KB of L2 per core and 16 MB of shared L3 cache. Both have 64 KB of L1 per core.

Memory support is DDR4 for both, with dual-channel buses, but the AMD part has a higher memory bandwidth at 51.2 GB/s versus the Intel part's 42.7 GB/s. Neither supports ECC memory. The Intel part offers PCIe Gen 3 with 16 lanes (CPU only), while the AMD part offers PCIe Gen 3 with 8 lanes (CPU only).

The integrated graphics differ: Intel uses UHD Graphics 630, AMD uses Radeon Vega 7. The Intel part is a desktop segment product, released on 2018-04-02, and is marked as end-of-life. The AMD part is a mobile segment product, released on 2022-04-18, and is marked as active. The Intel part has a launch MSRP of $303; the AMD part has no listed launch MSRP. Neither has an unlocked multiplier.

Architecture Differences

The architectural gap is substantial, spanning process node, core design, and feature set.

The Intel Core i7-8700B is based on Coffee Lake, a 14 nm architecture from Intel, fabricated by Intel's own foundry. It uses a monolithic die design with 6 cores and 12 threads. The AMD Ryzen 5 PRO 5675U is based on Zen 3, specifically the Cezanne-U variant, built on TSMC's 7 nm process. It also uses 6 cores and 12 threads, but the underlying microarchitecture is fundamentally different.

The process node difference is significant: 14 nm versus 7 nm, which contributes to the AMD part's lower 15 W TDP while still delivering competitive or superior performance in several tests. The AMD part also has a larger die (180 mm² versus 154 mm²) and a transistor count of 10,700 million, while the Intel part's transistor count is not recorded in the database.

Cache hierarchy differs in L2 and L3. The Intel part uses 256 KB of L2 per core and 12 MB of shared L3. The AMD part uses 512 KB of L2 per core (double the Intel per-core L2) and 16 MB of shared L3 (33% more L3). This larger cache footprint likely contributes to the AMD part's strong single-threaded performance in older benchmarks like Cinebench R15.

The memory bandwidth also favors AMD: 51.2 GB/s versus 42.7 GB/s, a 20% difference. PCIe lane counts differ as well, with Intel offering 16 CPU lanes versus AMD's 8 CPU lanes, both on PCIe Gen 3.

The integrated graphics are from different generations and architectures: Intel's UHD Graphics 630 versus AMD's Radeon Vega 7. The AMD part is a mobile segment product, while the Intel part is desktop segment. The release dates are roughly four years apart, with the Intel part launching in 2018 and the AMD part in 2022, which explains the architectural and process advantages in the AMD part.

Where Each One Wins

The benchmark data supports a clear use-case split.

The Intel Core i7-8700B wins in modern multi-threaded workloads. Its Cinebench R23 multicore score of 9977 is 26.8% ahead of the AMD part, and its Geekbench multicore score of 5936 is 8% ahead. It also narrowly wins Cinebench R23 single-core by 1.5%. This makes it the better choice for current content-creation applications that use the latest Cinebench rendering engine, or any workload that scales well across 12 threads. The desktop segment designation and 65 W TDP indicate it is intended for sustained multi-core performance in a desktop chassis.

The AMD Ryzen 5 PRO 5675U wins in single-threaded and legacy workloads. Its Cinebench R15 single-core score is 34.6% higher, and its Geekbench single-core score is 11.9% higher. It also wins Cinebench R15 multicore by 24.2%. This makes it the better choice for software that relies on older Cinebench R15 code paths, or applications where single-thread speed is the bottleneck. The mobile segment designation and 15 W TDP indicate it is designed for battery-conscious laptops, yet the data shows it outperforms a desktop 65 W part in several tests.

The database shows both parts at the 52nd percentile, meaning they are not outliers in either direction. The Intel part has the higher average benchmark score (3086 versus 2988), but the AMD part has the wider single-test wins. For users who prioritize the latest rendering benchmarks, the Intel part is the data-backed choice. For users who prioritize single-threaded responsiveness or run older benchmark-dependent software, the AMD part is the data-backed choice. There is no scenario in the recorded data where one part wins across all tests.