AMD Ryzen 3 PRO 8300G vs Intel Core i5-1240U Comparison

Head-to-Head Benchmarks

The recorded data shows a clear split between the AMD Ryzen 3 PRO 8300G and the Intel Core i5-1240U, with the AMD part winning 10 of the 17 head-to-head comparisons and Intel taking 7. The margins, however, tell a more nuanced story than the raw win count. The AMD processor's largest victory is a dominating 56.4% lead in Cinebench R23 multi-core, scoring 12359 against Intel's 7902. This is a substantial gap that underscores the AMD chip's ability to sustain heavy multi-threaded workloads far beyond what the Intel mobile part can deliver.

The AMD Ryzen 3 PRO 8300G also shows decisive strength in Cinebench R20 multi-core with a 3.5% lead (5190 vs 5013) and in Cinebench R23 single-core with an 11.9% advantage (1744 vs 1559). In PassMark extended instructions, AMD leads by 44.4% (11451 vs 7932), and in random string sorting, it is ahead by 23.2% (19703 vs 15996). The single-thread PassMark score also favors AMD by 9.6% (3550 vs 3239), and data compression goes to AMD by 5.2% (150567 vs 143102). Even in Cinebench R15 multi-core, the AMD chip edges out a 0.2% win (1245 vs 1242), a near tie but still a victory.

The Intel Core i5-1240U, despite losing the overall count, posts impressive wins in several specific workloads. Its most notable victories are in PassMark integer math, where it leads by 17.1% (44968 vs 37292), and in floating-point math, where it is ahead by 21.4% (29726 vs 23374). The Intel part also wins PassMark physics by 21.3% (981 vs 772), find prime numbers by 25.4% (63 vs 47), and data encryption by 4% (8964 vs 8607). In Cinebench R15 single-core, Intel holds a 22.6% lead (226 vs 175), a substantial edge in that legacy test. The PassMark multithread score is essentially a tie, with Intel ahead by only 0.3% (13406 vs 13368).

The aggregate benchmark scores reflect this mixed picture. The AMD Ryzen 3 PRO 8300G has an average benchmark score of 17278, placing it in the 71st percentile of all CPUs. The Intel Core i5-1240U has an average score of 16957, sitting in the 70th percentile. The AMD part's nearest rivals include the Intel Core i5-12450H (avg score 17239, delta 0.2%), the AMD Ryzen 3 210 (17321, delta -0.2%), and the AMD Ryzen 5 4500 (17333, delta -0.3%). For Intel, the nearest rivals are the AMD EPYC 7702 (16932, delta 0.1%), the AMD EPYC 7742 (16998, delta -0.2%), and the Intel Core i7-1260P (17007, delta -0.3%). These proximity scores indicate that both processors sit in a crowded performance band, with the AMD part holding a marginal overall advantage.

Where Each One Wins

The AMD Ryzen 3 PRO 8300G is the clear choice for sustained multi-core rendering and content creation. The 56.4% lead in Cinebench R23 multi-core is the standout metric, suggesting that workloads such as 3D rendering, video encoding, and batch processing will finish significantly faster on the AMD platform. The 44.4% advantage in extended instructions (including SIMD-heavy tasks) and the 23.2% lead in random string sorting further reinforce this pattern. The AMD chip also wins in single-thread performance in modern benchmarks, with an 11.9% lead in Cinebench R23 single-core and a 9.6% lead in PassMark single-thread, making it suitable for responsive everyday use and lightly threaded applications.

The Intel Core i5-1240U, by contrast, excels in mathematical and cryptographic workloads. The 17.1% lead in integer math and the 21.4% lead in floating-point math indicate that scientific computing, financial modeling, and numerical analysis run better on the Intel part. The 25.4% advantage in find prime numbers (a classic integer-heavy primality test) and the 4% lead in data encryption point to a strength in security-related tasks and algorithmic number crunching. The Intel chip also wins in PassMark physics, with a 21.3% margin, which may translate to better performance in certain simulation or game-physics workloads. The Cinebench R15 single-core win of 22.6% is notable but reflects an older benchmark generation; in the more current R20 and R23 single-core tests, AMD takes the lead.

For mixed-use scenarios, the PassMark multithread scores are nearly identical (13368 for AMD vs 13406 for Intel), indicating that general multi-threaded productivity tools see no meaningful difference. The data compression test favors AMD by 5.2%, so archiving and file management lean slightly toward the AMD part. Overall, the AMD processor is better suited for creative and rendering tasks, while the Intel processor holds an edge in math-heavy and encryption-focused workloads.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 3 PRO 8300G is built on the Zen 4 architecture with the codename Phoenix2, manufactured on a 4 nm process at TSMC. It is a monolithic desktop part with 4 cores and 8 threads. The Intel Core i5-1240U uses the Alder Lake architecture (codename Alder Lake-U) on a 10 nm process at Intel, featuring a hybrid design with 10 cores and 12 threads. The core count difference is significant: Intel provides 6 more physical cores, though the thread count gap narrows to 4 due to AMD's simultaneous multithreading.

The AMD chip integrates 20,900 million transistors on a 137 mm² die. The Intel part has no recorded transistor count or die size in the database, but its 10 nm process is considerably less dense than AMD's 4 nm node. The cache hierarchies also differ sharply. AMD allocates 64 KB of L1 per core and 1 MB of L2 per core, with a shared 8 MB L3 cache. Intel uses 80 KB of L1 per core and 1.25 MB of L2 per core, with a larger 12 MB shared L3 cache. The larger L3 on the Intel part may help in workloads that benefit from a bigger shared pool, but the AMD part's smaller process node and higher clock speeds appear to compensate.

Memory support diverges as well. The AMD Ryzen 3 PRO 8300G supports DDR5 only, with a dual-channel memory bus and a recorded bandwidth of 83.2 GB/s. It also supports ECC memory. The Intel Core i5-1240U supports both DDR4 and DDR5 on a dual-channel bus, but the database records no memory bandwidth figure and no ECC support. The AMD part provides PCIe Gen 4 with 14 lanes (CPU only), while the Intel part offers PCIe Gen 4 without a lane count specified.

The integrated graphics differ: AMD pairs the CPU with a Radeon 740M, while Intel uses Iris Xe 80EU. Both are capable of basic display output and light graphics work, but the database does not include graphics benchmarks for comparison. The socket and market segment also separate these parts: the AMD chip uses AMD Socket AM5 and is classified as a desktop processor, while the Intel chip uses Intel BGA 1781 and is a mobile processor. This fundamental platform difference explains the TDP gap: the AMD part has a 65 W TDP, while the Intel part is rated at 9 W. The AMD processor's base clock is 3.40 GHz with a boost of 4.90 GHz; Intel's base clock is recorded as 1100.00 MHz (effectively 1.10 GHz) with a boost of 4.40 GHz.

Specification Differences

The two processors differ across nearly every core specification. The AMD Ryzen 3 PRO 8300G has 4 cores and 8 threads, while the Intel Core i5-1240U has 10 cores and 12 threads. Base clocks are 3.40 GHz for AMD versus 1100.00 MHz for Intel, and boost clocks are 4.90 GHz versus 4.40 GHz. The TDP is 65 W for AMD versus 9 W for Intel, reflecting the desktop versus mobile design. The process node is 4 nm for AMD (TSMC foundry) versus 10 nm for Intel (Intel foundry). The AMD chip has 20,900 million transistors and a 137 mm² die size; Intel has no recorded figures for either.

Cache configurations differ: AMD uses 64 KB L1 per core, 1 MB L2 per core, and 8 MB shared L3. Intel uses 80 KB L1 per core, 1.25 MB L2 per core, and 12 MB shared L3. Memory support shows AMD limited to DDR5 with ECC, while Intel supports both DDR4 and DDR5 without ECC. Memory bandwidth is recorded as 83.2 GB/s for AMD; no figure exists for Intel. PCIe is Gen 4 with 14 lanes for AMD, versus Gen 4 without a lane count for Intel. The integrated graphics are Radeon 740M for AMD and Iris Xe 80EU for Intel. AMD uses Socket AM5 and targets the desktop segment; Intel uses BGA 1781 and targets mobile. Neither processor has an unlocked multiplier, and neither has a recorded launch MSRP. The AMD part has a part number (100-000001187), while Intel has none recorded. Release dates differ: AMD was released on 2024-04-15, Intel on 2022-02-22. Both are marked as Active in production status.

FAQ

Q: Which processor has a higher multi-core Cinebench R23 score?

A: The AMD Ryzen 3 PRO 8300G scores 12359 in Cinebench R23 multi-core, which is 56.4% higher than the Intel Core i5-1240U's 7902.

Q: Does the Intel Core i5-1240U win any single-core benchmarks?

A: Yes, in Cinebench R15 single-core, the Intel part scores 226 versus 175 for AMD, a 22.6% lead. However, in Cinebench R20 and R23 single-core, AMD wins by 3.5% and 11.9%, respectively.

Q: How do the two processors compare in PassMark multithread performance?

A: They are nearly identical. The Intel Core i5-1240U scores 13406, just 0.3% ahead of the AMD Ryzen 3 PRO 8300G's 13368.

Q: Which processor supports ECC memory?

A: Only the AMD Ryzen 3 PRO 8300G supports ECC memory. The Intel Core i5-1240U does not.

Q: What is the core and thread count difference?

A: The Intel Core i5-1240U has 10 cores and 12 threads, while the AMD Ryzen 3 PRO 8300G has 4 cores and 8 threads.

Q: Which processor has a larger L3 cache?

A: The Intel Core i5-1240U has 12 MB of shared L3 cache, while the AMD Ryzen 3 PRO 8300G has 8 MB of shared L3 cache.