AMD Ryzen 7 7745HX vs AMD Ryzen 7 8700G Comparison

The AMD Ryzen 7 7745HX and the AMD Ryzen 7 8700G are both 8-core, 16-thread Zen 4 parts, but they are built for entirely different machines. The 7745HX is a Dragon Range mobile chip for high-performance laptops, while the 8700G is a Phoenix desktop APU for compact builds. The benchmark data shows a clear split: the 7745HX wins 18 of 23 head-to-head tests, but the 8700G takes the Geekbench multicore crown and a few specialized workloads. The overall average benchmark scores are nearly identical — 33091 for the 7745HX versus 33089 for the 8700G — and both sit at the 83rd percentile among all CPUs, with a 0% deltaPct against each other. This is a battle of raw CPU throughput versus a more balanced, feature-rich desktop package.

Where Each One Wins

The AMD Ryzen 7 7745HX is the clear leader in sustained multi-threaded rendering. Its Cinebench R23 multicore score of 18452.5 beats the 8700G's 17128 by 7.7%, and the R15 multicore gap is even larger at 10.9% (2986 versus 2693). It also dominates the PassMark multithread test with a 2.8% lead (32581 versus 31690) and wins integer math by 2.6% (105773 versus 103107). The 7745HX also takes the PassMark find prime numbers test by a massive 51.5% (156 versus 103), indicating much stronger integer throughput in that specific workload. The 3DMark suite is mostly a 7745HX sweep, with wins in 16-thread (0.9%), 2-thread (1%), 8-thread (0.2%), max-thread (0.6%), and single-thread (1.3%) tests. Single-core performance consistently favors the 7745HX, with Cinebench R23 single-core at 1850 versus 1817 (1.8% lead) and Geekbench single-core at 2366 versus 2337 (1.2%).

The AMD Ryzen 7 8700G wins a smaller but meaningful set of tests. Its Geekbench multicore score of 14584 is a solid 6.7% ahead of the 7745HX's 13613, the largest margin in either direction. It also wins PassMark data compression by 0.9% (386811 versus 383322), random string sorting by 3.4% (46025 versus 44474), and extended instructions by 0.3% (29067 versus 28966). The 3DMark 4-thread test also goes its way by 0.3% (3825 versus 3815). These wins point to strengths in memory-bandwidth-sensitive and compression-oriented tasks, likely benefiting from its desktop platform.

Architecture Differences

The 7745HX uses the Zen 4 architecture on a 5 nm TSMC process with a 71 mm² die size and 6,570 million transistors. The 8700G uses the same Zen 4 architecture but on a more advanced 4 nm TSMC process, with a much larger 178 mm² die and 25,000 million transistors. That transistor count difference is enormous — the 8700G packs nearly four times as many transistors, largely because it integrates the Radeon 780M graphics, whereas the 7745HX only has the weaker Radeon 610M. The 8700G also has a higher base clock of 4.20 GHz versus 3.60 GHz, though both boost to the same 5.10 GHz.

Cache allocation is a key differentiator. Both have 64 KB L1 and 1 MB L2 per core, but the 7745HX has 32 MB of shared L3 cache, double the 8700G's 16 MB. This larger L3 likely explains the 7745HX's strong showing in integer-heavy and rendering workloads. The 8700G compensates with a higher base clock and a more power-hungry 65 W TDP versus 55 W for the 7745HX. The 7745HX is a mobile part on AMD Socket FL1, while the 8700G is a desktop part on AMD Socket AM5. The 7745HX supports PCIe Gen 5 with 28 CPU lanes, while the 8700G is limited to PCIe Gen 4 with 20 lanes. ECC memory is supported on the 7745HX but not on the 8700G. Both support DDR5 dual-channel memory with identical 83.2 GB/s bandwidth.

Head-to-Head Benchmarks

The most decisive win for the 7745HX is Cinebench R15 multicore, where it scores 2986 against the 8700G's 2693, a 10.9% advantage. This is a sustained rendering workload, and the 7745HX's larger L3 cache and lower TDP appear to pay off in efficiency under load. The Cinebench R23 multicore test shows a 7.7% lead (18452.5 versus 17128), confirming the pattern. The PassMark find prime numbers test is the single biggest outlier: 156 for the 7745HX versus 103 for the 8700G, a 51.5% margin that suggests a significant difference in integer execution efficiency for that algorithm.

The 8700G's biggest counterpunch is Geekbench multicore, where it scores 14584 versus 13613, a 6.7% lead. This is interesting because the 7745HX wins most other multithreaded tests. The Geekbench workload may be more sensitive to the 8700G's higher 4.20 GHz base clock. The 8700G also wins PassMark random string sorting by 3.4% (46025 versus 44474) and data compression by 0.9% (386811 versus 383322), suggesting its memory subsystem or memory latency characteristics favor these tasks. In single-thread tests, the 7745HX holds a consistent but small edge: 3DMark single-thread 1023 versus 1010 (1.3%), Cinebench R23 single-core 1850 versus 1817 (1.8%), and Geekbench single-core 2366 versus 2337 (1.2%).

Specification Differences

The two CPUs differ primarily in their target platform and integrated graphics. The 7745HX is a mobile processor on AMD Socket FL1 with a 55 W TDP, while the 8700G is a desktop processor on AMD Socket AM5 with a 65 W TDP. The 7745HX uses the Dragon Range codename with a 5 nm process and 6,570 million transistors on a 71 mm² die, while the 8700G uses Phoenix with a 4 nm process and 25,000 million transistors on a 178 mm² die. The 7745HX has 32 MB of shared L3 cache, while the 8700G has 16 MB. The 7745HX supports PCIe Gen 5 with 28 lanes, while the 8700G supports PCIe Gen 4 with 20 lanes. The 7745HX has a base clock of 3.60 GHz versus 4.20 GHz for the 8700G, though both boost to 5.10 GHz. The 7745HX supports ECC memory; the 8700G does not. The 7745HX has Radeon 610M integrated graphics, while the 8700G has the more powerful Radeon 780M. The 7745HX was released on 2023-01-03, and the 8700G on 2024-01-07. The 8700G has a launch MSRP of $329. Both have unlocked multipliers.

FAQ

Q: Which CPU is faster in multi-core rendering?

A: The AMD Ryzen 7 7745HX is faster. It leads in Cinebench R23 multicore by 7.7% (18452.5 versus 17128) and in Cinebench R15 multicore by 10.9% (2986 versus 2693).

Q: The 8700G wins Geekbench multicore. Why?

A: The 8700G scores 14584 versus 13613 for the 7745HX, a 6.7% lead. This suggests that Geekbench's workload is more sensitive to the 8700G's higher 4.20 GHz base clock, even though the 7745HX has a larger L3 cache.

Q: Are they similar in overall performance?

A: Yes. Their average benchmark scores are nearly identical — 33091 for the 7745HX and 33089 for the 8700G. Both are at the 83rd percentile of all CPUs, and the deltaPct between them is 0%.

Q: Which has better integrated graphics?

A: The 8700G has the Radeon 780M, while the 7745HX has the Radeon 610M. The 8700G's desktop APU design with its larger die and 25,000 million transistors is built around a more capable iGPU.

Q: Which CPU has more cache?

A: The 7745HX has 32 MB of shared L3 cache, double the 8700G's 16 MB. Both have 64 KB L1 and 1 MB L2 per core.

Q: Which platform supports PCIe Gen 5?

A: The 7745HX supports PCIe Gen 5 with 28 lanes, while the 8700G is limited to PCIe Gen 4 with 20 lanes.

The Verdict

The data says the AMD Ryzen 7 7745HX is the better pure CPU for multithreaded and single-threaded compute tasks. It wins 18 of 23 head-to-head benchmarks, with decisive margins in Cinebench R15 multicore (10.9%), Cinebench R23 multicore (7.7%), and PassMark find prime numbers (51.5%). Its larger 32 MB L3 cache and lower 55 W TDP make it a strong choice for rendering, video encoding, and integer-heavy workloads. If you are picking a chip for a laptop that will do sustained CPU work, the 7745HX is the data-backed winner.

The AMD Ryzen 7 8700G is the better choice when you need a desktop platform with a more powerful integrated GPU. Its Radeon 780M is a significant step up from the 7745HX's Radeon 610M, and its higher 4.20 GHz base clock helps it win Geekbench multicore by 6.7%. It also wins memory-bandwidth-sensitive tests like data compression and random string sorting. The 8700G is the pick for a small-form-factor desktop where you want to skip a discrete GPU for light gaming or general productivity. Its 65 W TDP and AM5 socket are desktop-friendly, and it carries a launch MSRP of $329. The 7745HX's wins are more numerous and larger in magnitude, but the 8700G's integrated graphics and desktop socket make it the practical choice for builds without a dedicated graphics card. Choose the 7745HX for maximum CPU throughput in a mobile chassis; choose the 8700G for a balanced desktop APU.