AMD Ryzen 3 5300U vs Intel Core i5-1145G7E Comparison

Intel Core i5-1145G7E and AMD Ryzen 3 5300U are both 4-core, 8-thread mobile processors, but benchmark data reveals they excel in different types of workloads. The Intel chip dominates in the modern Cinebench R23 multi-core test with a 40.7% advantage, while the AMD part wins three of the four head-to-head comparisons, including a decisive 37.6% lead in Cinebench R15 single-core. Overall average benchmark scores are nearly identical, with the Intel part at 2174 and the AMD at 2135, placing them within 0.3% of each other in aggregate performance.

Head-to-Head Benchmarks

The most striking result is the Cinebench R23 multi-core test, where the Intel Core i5-1145G7E scores 7516 against the Ryzen 3 5300U’s 5341. That is a 40.7% margin, the largest delta in any benchmark between these two chips. This suggests that under sustained multi-threaded loads—such as video rendering or code compilation—the Intel processor has a substantial throughput advantage. The Intel part’s 28W TDP, versus the AMD’s 15W, likely contributes to this result, as higher power draw can sustain higher clock speeds under load.

However, the AMD Ryzen 3 5300U wins the older Cinebench R15 multi-core test, scoring 906 against Intel’s 757. That is a 16.4% deficit for Intel. The discrepancy between R15 and R23 results is notable: the two tests stress the CPU differently, and the newer R23 workload appears to favor Intel’s architecture more strongly. In Cinebench R15 single-core, AMD again takes the lead with 170 points versus Intel’s 106, a 37.6% gap that is the second-largest delta in the comparison. This older single-threaded test shows AMD’s Zen 2 cores delivering significantly better legacy performance.

In the more modern Cinebench R23 single-core benchmark, the margin narrows dramatically. The AMD Ryzen 3 5300U scores 1115, while the Intel Core i5-1145G7E scores 1061, giving AMD a 4.8% win. This is a much closer result than the R15 single-core test, indicating that the Intel chip’s newer Willow Cove cores perform better relative to AMD’s Zen 2 when running the latest instruction sets and workloads.

Looking at the nearest rivals for each chip provides context. The Intel part’s closest competitor by average score is the AMD Ryzen 5 3400GE at 2175, a 0% delta, followed by the Intel Core i7-1185GRE at 2178 (-0.2%). The AMD Ryzen 3 5300U’s nearest rival is the Intel Core i5-9400T at 2136 (0% delta), with the AMD Ryzen 5 7520C at 2127 and Intel Core i7-1160G7 at 2124 close behind. Both processors sit in the 46th-47th percentile of all CPUs, meaning they are neither top-tier nor bottom-tier parts; they occupy a distinctly mid-range performance band.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i5-1145G7E has an average benchmark score of 2174, while the AMD Ryzen 3 5300U scores 2135. This places Intel slightly ahead by about 1.8%, though both chips fall within the same performance neighborhood.

Q: Does the AMD Ryzen 3 5300U win more benchmark tests?

A: Yes. In the head-to-head comparisons, the AMD chip wins three out of four tests: Cinebench R15 multi-core, Cinebench R15 single-core, and Cinebench R23 single-core. The Intel part wins only Cinebench R23 multi-core.

Q: How significant is Intel’s win in Cinebench R23 multi-core?

A: The delta is 40.7%, with Intel scoring 7516 versus AMD’s 5341. This is the largest performance gap in any benchmark between the two processors, suggesting a major advantage for Intel in sustained multi-threaded workloads.

Q: What is the difference in their percentile rankings?

A: The Intel Core i5-1145G7E ranks in the 47th percentile of all CPUs, while the AMD Ryzen 3 5300U ranks in the 46th percentile. This difference of one percentile point is negligible in practical terms.

Q: How do the two compare in the Cinebench R23 single-core test?

A: The AMD Ryzen 3 5300U leads with a score of 1115 against Intel’s 1061, resulting in a 4.8% margin. This is a relatively close result compared to other benchmarks in the comparison.

Q: Are there any benchmarks where the Intel chip is not competitive?

A: In the Cinebench R15 single-core test, Intel scores 106 versus AMD’s 170, a 37.6% deficit. This is the largest loss for Intel across all tested workloads.

The Verdict

For users prioritizing modern multi-threaded performance, the Intel Core i5-1145G7E is the clear choice. Its 40.7% lead in Cinebench R23 multi-core is a decisive advantage in content creation, rendering, and other parallel workloads. The data shows that this is not a marginal win; it is a substantial gap that will be noticeable in real-world applications that scale with cores and sustained clock speeds.

For users who value legacy single-threaded performance or prefer AMD’s efficiency profile, the Ryzen 3 5300U has merit. It wins three of four head-to-head tests, including a 37.6% margin in Cinebench R15 single-core, which indicates strong compatibility with older software that relies on single-threaded execution. The AMD part also carries a 15W TDP versus Intel’s 28W, suggesting it may fit better in thermally constrained chassis, though the benchmark data does not directly measure power efficiency.

The overall average scores (2174 vs 2135) imply that for mixed-use scenarios, neither chip has a commanding lead. The Intel part’s single win is so lopsided that it skews the aggregate, but the AMD chip’s consistency across multiple tests is notable. A user who runs a variety of applications without a heavy bias toward multi-threaded rendering might find the AMD processor’s more balanced results appealing. Conversely, a user who knows their workload is heavily multi-threaded and modern should favor Intel, as the 40.7% delta in R23 multi-core is too large to ignore.

Specification Differences

The two processors differ in several key specifications. The Intel Core i5-1145G7E has a base clock of 1500 MHz and a boost clock of 4.10 GHz, while the AMD Ryzen 3 5300U runs at 2600 MHz base and 3.80 GHz boost. Intel’s TDP is 28W, compared to AMD’s 15W. The socket types differ: Intel uses BGA 1449, while AMD uses Socket FP6.

Memory support varies: the Intel chip supports DDR4 and LPDDR4X, while the AMD chip supports only DDR4. Both use dual-channel memory buses. The PCIe implementation differs significantly: Intel provides Gen 4 with 4 lanes (CPU only), while AMD provides Gen 3 with 12 lanes (CPU only). The Intel part has a launch MSRP of $312, while the AMD part has no listed launch MSRP.

Cache configurations also differ. Intel’s L1 cache is 80 KB per core, L2 is 1.25 MB per core, and L3 is 8 MB shared. AMD’s L1 is 64 KB per core, L2 is 512 KB per core, and L3 is 4 MB shared. This means Intel has more total cache at every level, which may contribute to its stronger performance in certain multi-threaded tests.

Architecture Differences

The Intel Core i5-1145G7E is built on Intel’s Tiger Lake architecture (codename Tiger Lake-U), using a 10 nm process node manufactured by Intel. It belongs to the Willow Cove-U generation. The AMD Ryzen 3 5300U uses Zen 2 architecture (codename Lucienne), fabricated on a 7 nm process by TSMC. This gives AMD a process node advantage in terms of density and efficiency, though the benchmark data shows Intel’s architecture compensates with higher clocks in some tests.

The die sizes are similar: Intel’s is 144 mm², while AMD’s is 156 mm². However, AMD’s transistor count is listed at 9,800 million, while Intel’s is not provided. Both processors feature integrated graphics: Intel has Iris Xe Graphics G7 80EU, while AMD has Radeon Graphics 384SP. Neither processor supports ECC memory, and both have locked multipliers, meaning they are not overclockable.

The release dates differ by roughly four months, with Intel launching on September 1, 2020, and AMD on January 11, 2021. Both are listed as Active in production status. The part numbers are SRK0Z for Intel and 100-000000376 for AMD. The AMD chip is part of the Ryzen 5000 series, while Intel’s series field is null. These architectural differences—particularly the process node (10 nm vs 7 nm), cache hierarchy, and PCIe generation—help explain the divergent benchmark results, with Intel’s larger cache and higher boost clock aiding its multi-threaded performance, while AMD’s smaller cache and lower power envelope still manage to win most individual tests.