AMD Ryzen 5 PRO 3400GE vs Intel Core i3-N305 Comparison

Where Each One Wins

The Intel Core i3-N305 and AMD Ryzen 5 PRO 3400GE both sit at the 44th percentile of all CPUs in the database, yet their benchmark profiles point to different workloads. The Intel part wins 6 of the 8 head-to-head comparisons, making it the default choice for most multithreaded productivity tasks. Its margins are decisive in Cinebench R15 and R20, where it leads by 27.5% and 23.5% respectively, and it also takes Geekbench multicore by 17%. For users running older render engines or general office multitasking, the i3-N305 has a clear edge.

The AMD Ryzen 5 PRO 3400GE wins two specific tests that matter for different reasons. In Cinebench R23 multicore, it posts 6457 against 5092, a 21.1% victory that suggests newer render workloads favor its architecture. It also edges out the Intel chip in Geekbench single-core with 1110 versus 1049, a 5.5% margin that points to better per-thread responsiveness in light, bursty tasks. This makes the 3400GE the better pick for single-threaded applications like legacy code, certain scripting workloads, or older games that rely on one core.

The split is not just about raw scores. The i3-N305 wins via consistent, broad leads across multiple benchmark generations, while the 3400GE's wins are concentrated and specific. If a workload uses AVX2-heavy Cinebench R23 rendering, the AMD chip is the answer. If the workload resembles Cinebench R15 or R20, or Geekbench's multicore suite, the Intel chip dominates. The data suggests a simple rule: the i3-N305 is the general-purpose workhorse, the 3400GE is the specialist for newer render loops and single-threaded responsiveness.

Architecture Differences

The two chips come from fundamentally different design philosophies. The Intel Core i3-N305 uses Gracemont architecture, built on a 10 nm process at Intel's foundry, and it packs 8 cores with 8 threads. The AMD Ryzen 5 PRO 3400GE uses Zen+ architecture, specifically the Picasso codename, on a 12 nm process from GlobalFoundries, with 4 cores and 8 threads thanks to simultaneous multithreading. This core count disparity explains much of the multicore performance gap: the Intel chip has double the physical cores, while the AMD chip relies on thread sharing to reach 8 threads.

Cache hierarchies also differ. The i3-N305 offers 96 KB of L1 per core, 2 MB of L2 per module, and 6 MB of shared L3. The 3400GE has 96 KB of L1 per core, 512 KB of L2 per core, and 4 MB of shared L3. While the Intel part has more total L3, the AMD part's per-core L2 allocation is smaller but more evenly distributed. The 3400GE also includes 4,940 million transistors on a 210 mm² die, while the i3-N305 does not have recorded transistor or die size figures in the database.

Memory support separates the two further. The i3-N305 supports DDR4 and DDR5, but only in single-channel mode with 38.4 GB/s bandwidth. The 3400GE supports only DDR4, yet it runs dual-channel with 46.9 GB/s bandwidth. That 8.5 GB/s advantage for AMD could matter for memory-sensitive workloads, despite the Intel chip having access to newer DDR5 memory. The 3400GE also supports ECC memory, while the i3-N305 does not, and it uses a full PCIe Gen 3 interface, whereas the Intel chip lists Gen 3 with 9 lanes from the CPU only.

The platforms are entirely different. The i3-N305 is a mobile chip on Intel BGA 1264, while the 3400GE is a desktop chip on AMD Socket AM4. The Intel part has a 15 W TDP, the AMD part a 35 W TDP, which reflects their intended environments. The i3-N305 integrates UHD Graphics 770, while the 3400GE integrates Radeon RX Vega 11. Both are active in production, but the i3-N305 launched on 2023-01-02, over three years after the 3400GE's 2019-09-29 release date.

Head-to-Head Benchmarks

The biggest single victory for the Intel Core i3-N305 comes in Cinebench R15 single-core, where it scores 164.7 against the AMD chip's 91, an 81% delta. That is a massive gap for a single-threaded test and suggests the Gracemont cores have far higher per-clock efficiency in that benchmark. The i3-N305 also takes Cinebench R15 multicore with 829 versus 650, a 27.5% lead, and Cinebench R20 multicore with 3349 versus 2711, a 23.5% margin. In Cinebench R20 single-core, the Intel chip leads 472 to 382, a 23.6% advantage.

The AMD Ryzen 5 PRO 3400GE's largest win is Cinebench R23 multicore, where it scores 6457 against 5092, a 21.1% margin. This is notable because the Intel chip wins the older Cinebench R15 and R20 multicore tests, yet loses the newer R23 version. The 3400GE also wins Geekbench single-core with 1110 versus 1049, a 5.5% margin, though the Intel chip takes Geekbench multicore with 3881 versus 3318, a 17% lead.

Patterns emerge across the test suite. The i3-N305 dominates in every Cinebench test except R23 multicore, and it also wins Geekbench multicore. The 3400GE's two wins are the newest Cinebench version and the single-core Geekbench test. This suggests the AMD architecture handles the more complex instruction mix of Cinebench R23 better, while Intel's Gracemont excels in older, simpler workloads. The 81% delta in R15 single-core is the standout outlier, dwarfing all other margins. For users comparing these chips, the choice depends heavily on which benchmark generation matches their software.

Specification Differences

The two processors diverge on nearly every recorded specification. The Intel Core i3-N305 has 8 cores and 8 threads, while the AMD Ryzen 5 PRO 3400GE has 4 cores and 8 threads. Base clocks differ at 100.00 MHz for Intel versus 3.30 GHz for AMD, though boost clocks are closer at 3.80 GHz versus 4.00 GHz. TDP is 15 W for Intel and 35 W for AMD, reflecting the mobile versus desktop market split. The i3-N305 uses Intel BGA 1264, the 3400GE uses AMD Socket AM4.

Process technology separates them: 10 nm Intel versus 12 nm GlobalFoundries. The AMD chip records 4,940 million transistors and a 210 mm² die size, while the Intel chip has no recorded values for either. Cache configurations differ in L2 and L3: the i3-N305 has 2 MB per module L2 and 6 MB shared L3, the 3400GE has 512 KB per core L2 and 4 MB shared L3. L1 is identical at 96 KB per core.

Memory support shows a trade-off. The i3-N305 supports DDR4 and DDR5, but only single-channel with 38.4 GB/s bandwidth. The 3400GE supports only DDR4, but dual-channel with 46.9 GB/s bandwidth. ECC memory is available on the AMD chip but not the Intel chip. PCIe is Gen 3 for both, but the i3-N305 lists 9 lanes from the CPU only, while the 3400GE lists no lane count. Integrated graphics differ: UHD Graphics 770 versus Radeon RX Vega 11.

Release dates and pricing also differ. The i3-N305 launched on 2023-01-02 with a launch MSRP of $309. The 3400GE launched on 2019-09-29 with no recorded launch MSRP. Neither chip has an unlocked multiplier. The Intel part number is SRMDQ, the AMD part number is YD340BC6M4MFH. The i3-N305 is classified as Mobile, the 3400GE as Desktop, though both remain Active in production.

FAQ

Q: Which processor has more cores?

A: The Intel Core i3-N305 has 8 cores and 8 threads. The AMD Ryzen 5 PRO 3400GE has 4 cores and 8 threads, using simultaneous multithreading to match the thread count.

Q: How do they compare in Cinebench R23 multicore?

A: The AMD Ryzen 5 PRO 3400GE wins this test with 6457 points against 5092 for the Intel Core i3-N305, a 21.1% margin in favor of AMD. This is the Intel chip's only multicore loss in the Cinebench series.

Q: Which chip has higher memory bandwidth?

A: The AMD Ryzen 5 PRO 3400GE has 46.9 GB/s bandwidth from its dual-channel DDR4 support. The Intel Core i3-N305 has 38.4 GB/s from single-channel DDR4 or DDR5 support.

Q: Do both processors support ECC memory?

A: No. The AMD Ryzen 5 PRO 3400GE supports ECC memory, while the Intel Core i3-N305 does not.

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

A: The Intel Core i3-N305 leads by 81% in Cinebench R15 single-core, scoring 164.7 against 91 for the AMD chip. No other test comes close to this margin.

Q: How does the Intel chip fare in single-threaded Geekbench?

A: The AMD Ryzen 5 PRO 3400GE wins Geekbench single-core with 1110 against 1049 for the Intel Core i3-N305, a 5.5% margin. This is one of only two test wins for the AMD chip in the head-to-head comparison.