AMD EPYC 7453 vs Intel Core i5-1145G7 Comparison

The Verdict

The AMD EPYC 7453 and Intel Core i5-1145G7 occupy completely different corners of the processor market, and the benchmark data reflects that divide with unusual clarity. The EPYC 7453 is a 28-core, 56-thread server processor built for sustained multi-threaded workloads, while the Core i5-1145G7 is a 4-core, 8-thread mobile chip designed for thin-and-light laptops. In every recorded Cinebench test, the EPYC 7453 wins by a margin of roughly 430%. The data shows no overlap in performance capability: the EPYC 7453 scores 41185 in Cinebench R23 multi-core against 7777 for the i5-1145G7, a 429.6% advantage.

Who should pick which? The answer follows the market segments. The EPYC 7453 is the choice for server and workstation deployments where multi-threaded throughput, eight-channel memory bandwidth at 204.8 GB/s, and 128 PCIe Gen 4 lanes matter. The i5-1145G7 is the choice for a mobile system where the 28W TDP, integrated Iris Xe Graphics G7 80EU, and compact BGA 1449 socket are the defining constraints. The i5-1145G7 is marked end-of-life in the database, while the EPYC 7453 remains active. The EPYC 7453 also carries a launch MSRP of $1570, while the i5-1145G7 has a launch MSRP of $309, but the price difference reflects the gulf in core count, memory support, and target workload.

FAQ

Q: Which processor is faster in multi-core workloads?

A: The AMD EPYC 7453 dominates. In Cinebench R23 multi-core, it scores 41185 against 7777 for the Intel Core i5-1145G7, a 429.6% lead. The same pattern holds in Cinebench R20 multi-core (17297 vs 3266, a 429.6% delta) and Cinebench R15 multi-core (4151 vs 783, a 430.1% delta).

Q: Does the Intel Core i5-1145G7 have integrated graphics?

A: Yes. The i5-1145G7 includes Iris Xe Graphics G7 80EU. The AMD EPYC 7453 has no integrated graphics, which is typical for a server processor.

Q: What memory configurations do these processors support?

A: The EPYC 7453 supports DDR4 over an eight-channel memory bus with 204.8 GB/s of bandwidth and ECC memory. The i5-1145G7 supports DDR4 and LPDDR4X over a dual-channel bus, with no ECC support. The database does not list a memory bandwidth figure for the i5-1145G7.

Q: Which processor has more PCIe lanes?

A: The EPYC 7453 provides 128 PCIe Gen 4 lanes (CPU only). The i5-1145G7 provides 4 PCIe Gen 4 lanes (CPU only). This is a 32-fold difference in lane count.

Q: Are these processors still in production?

A: The AMD EPYC 7453 is listed as active. The Intel Core i5-1145G7 is listed as end-of-life.

Q: How do their single-core scores compare?

A: The EPYC 7453 wins every single-core Cinebench test. In Cinebench R23 single-core, it scores 5814 against 1098 for the i5-1145G7, a 429.5% advantage. The i5-1145G7 has a higher boost clock at 4.40 GHz versus 3.45 GHz, but the EPYC's Zen 3 architecture and higher base clock of 2.75 GHz against 2.60 GHz do not translate into a win for the Intel part in the recorded data.

Architecture Differences

The two processors come from different architectural lineages. The EPYC 7453 is built on AMD's Zen 3 architecture, codenamed Milan, and belongs to the EPYC 7003 series. It is manufactured on a 7 nm process at TSMC, with a die composed of 4x 81 mm² chiplets and 16,600 million transistors. The i5-1145G7 uses Intel's Tiger Lake architecture, specifically Tiger Lake-U, with Willow Cove cores. It is built on Intel's 10 nm process with a single 144 mm² die.

Core counts diverge sharply. The EPYC 7453 has 28 cores and 56 threads, while the i5-1145G7 has 4 cores and 8 threads. Cache hierarchies reflect the different design goals. The EPYC 7453 allocates 64 KB of L1 and 512 KB of L2 per core, with a shared 64 MB L3 cache. The i5-1145G7 allocates 80 KB of L1 and 1.25 MB of L2 per core, with a shared 8 MB L3 cache. The EPYC's larger L3 is 8 times the i5's total, which matters for data-heavy server workloads.

Memory architecture is another fundamental split. The EPYC 7453 uses an eight-channel DDR4 controller with ECC support and a listed memory bandwidth of 204.8 GB/s. The i5-1145G7 uses a dual-channel controller supporting DDR4 and LPDDR4X, with no ECC. PCIe connectivity also differs: the EPYC 7453 exposes 128 Gen 4 lanes, while the i5-1145G7 exposes only 4 Gen 4 lanes. The i5-1145G7 compensates with integrated Iris Xe Graphics G7 80EU, which the EPYC 7453 lacks entirely.

Specification Differences

The recorded specifications show a processor designed for scale versus one designed for mobility. The EPYC 7453 has 28 cores and 56 threads; the i5-1145G7 has 4 cores and 8 threads. Base clocks are close, 2.75 GHz for the EPYC and 2.60 GHz for the i5, but boost clocks favor the Intel part at 4.40 GHz versus 3.45 GHz. TDP is the starkest contrast: the EPYC 7453 draws 225W, while the i5-1145G7 draws 28W.

Sockets differ completely. The EPYC 7453 uses AMD Socket SP3, the i5-1145G7 uses Intel BGA 1449. Process nodes are 7 nm for the EPYC and 10 nm for the i5. The EPYC 7453 has a 64 MB shared L3 cache; the i5-1145G7 has an 8 MB shared L3 cache. Memory support: the EPYC runs DDR4 over eight channels with ECC and 204.8 GB/s bandwidth; the i5 runs DDR4 or LPDDR4X over two channels with no ECC and no listed bandwidth. PCIe lanes: 128 Gen 4 for the EPYC, 4 Gen 4 for the i5. Integrated graphics: none for the EPYC, Iris Xe Graphics G7 80EU for the i5.

Market segments and lifecycle status also differ. The EPYC 7453 is a server/workstation part, released on 2021-03-14, and remains active. The i5-1145G7 is a mobile part, released on 2020-09-01, and is end-of-life. The EPYC 7453 has a launch MSRP of $1570; the i5-1145G7 has a launch MSRP of $309. Neither processor has an unlocked multiplier. Part numbers are 100-000000319 for the EPYC and SRK03 for the i5.

Head-to-Head Benchmarks

The head-to-head data covers six Cinebench tests, and the EPYC 7453 wins all six. The margins are consistent, hovering around 430% in every test. This uniformity suggests the performance gap is structural, driven by core count and memory bandwidth, rather than workload-specific.

In Cinebench R15 multi-core, the EPYC 7453 scores 4151 against 783 for the i5-1145G7, a 430.1% delta. The single-core R15 test shows a similar gap: 585 versus 110, a 431.8% delta. The R20 suite follows the same pattern. Multi-core: 17297 versus 3266, a 429.6% delta. Single-core: 2441 versus 461, a 429.5% delta. The R23 results are the most dramatic in absolute terms. Multi-core: 41185 versus 7777, a 429.6% delta. Single-core: 5814 versus 1098, a 429.5% delta.

The i5-1145G7 has additional benchmark entries in the database, including Geekbench and Passmark tests, but the head-to-head comparison only includes Cinebench results. The i5's Geekbench multi-core score is 4066 and single-core is 1463. Its Passmark multi-thread score is 9452, and its single-thread score is 2713. These figures are not part of the head-to-head table, so they do not factor into the win count. The database records 6 wins for the EPYC 7453 and 0 for the i5-1145G7.

The average benchmark scores place the EPYC 7453 at 11912 and the i5-1145G7 at 11279. The EPYC's nearest rivals by average score include the Intel Core i7-7700 at 11914 with a 0% delta, the AMD Ryzen 5 3500X at 12000 with a -0.7% delta, and the Intel Xeon Bronze 3408U at 12019 with a -0.9% delta. The i5-1145G7's nearest rivals include the AMD EPYC 7452 at 11279 with a 0% delta, the AMD EPYC 7402 at 11312 with a -0.3% delta, and the AMD EPYC 73F3 at 11334 with a -0.5% delta. The percentile rankings are close, 67 for the EPYC and 66 for the i5, but the underlying workloads could not be more different.

The data tells a straightforward story. The EPYC 7453 is a high-core-count server processor with a 225W TDP, eight-channel memory, and 128 PCIe lanes. The i5-1145G7 is a low-power mobile processor with integrated graphics and a 28W TDP. The benchmark results show the EPYC 7453 outperforming the i5-1145G7 by roughly 430% across all Cinebench tests, a margin that reflects the fundamental difference in design intent. For server workloads, the EPYC 7453 is the clear choice. For mobile systems where power efficiency and integrated graphics are priorities, the i5-1145G7 serves a purpose the EPYC cannot match.