AMD Ryzen 9 PRO 7945 vs Intel Core i5-1145G7 Comparison

# AMD Ryzen 9 PRO 7945 vs Intel Core i5-1145G7

The AMD Ryzen 9 PRO 7945 and Intel Core i5-1145G7 sit in entirely different performance tiers, as the benchmark data makes unequivocally clear. Across all six head-to-head Cinebench tests, the AMD part wins every single matchup, with deltas ranging from 409.8% to 412.7% in its favor. The Ryzen 9 PRO 7945 achieves an average benchmark score of 11,469, placing it at the 67th percentile of all CPUs, while the Core i5-1145G7 manages an average score of 11,279 at the 66th percentile — a gap of only 1.7% in aggregate, but the individual test results tell a far more dramatic story. This comparison is not about incremental gains; it is about a desktop/workstation-class processor overwhelming a mobile chip designed for thin-and-light laptops.

The Verdict

The data dictates a clear split: the AMD Ryzen 9 PRO 7945 is the only choice for multi-threaded workloads, content creation, and any task that scales across cores. Its 12 cores and 24 threads deliver Cinebench R23 multi-core scores of 39,653, compared to the Core i5-1145G7's 7,777 — a 409.9% advantage. Even in single-core performance, where the gap between architectures usually narrows, the Ryzen 9 PRO 7945 posts 5,598 in Cinebench R23 single-core versus 1,098 for the Intel part, a 409.8% lead. The AMD processor is also the pick for anyone needing ECC memory support, PCIe Gen 5 connectivity, or DDR5 memory compatibility, all of which the Intel chip lacks.

The Intel Core i5-1145G7, by contrast, is a mobile-focused processor with a 28W TDP, making it suitable for compact, power-constrained systems. Its production status is end-of-life, and its 4 cores and 8 threads are simply not competitive against the Ryzen 9 PRO 7945's 12-core, 24-thread configuration. The Intel part does hold one practical edge: it is a mobile chip with integrated Iris Xe Graphics G7 80EU, whereas the AMD processor is classified as a server/workstation part with Radeon Graphics. For a laptop or low-power mini PC, the Core i5-1145G7 makes sense; for any performance-critical application, the Ryzen 9 PRO 7945 is the definitive answer.

Architecture Differences

The two processors come from different eras and design philosophies. The AMD Ryzen 9 PRO 7945 is built on the Zen 4 architecture, codenamed Raphael, using a 5 nm process from TSMC. It packs 12 cores and 24 threads with a base clock of 3.70 GHz and a boost clock of 5.40 GHz, all within a 65W TDP. The chip uses AMD Socket AM5 and is part of the 7000 series, with a transistor count of 13,140 million spread across a dual-die design (2x 71 mm²). Its cache hierarchy is generous: 64 KB L1 per core, 1 MB L2 per core, and 64 MB shared L3. Memory support covers DDR5 in a dual-channel configuration, delivering 83.2 GB/s of bandwidth, with ECC memory enabled.

The Intel Core i5-1145G7, meanwhile, is a Tiger Lake-U part built on Intel's 10 nm process. It has 4 cores and 8 threads, with a base clock of 2.60 GHz and a boost clock of 4.40 GHz, within a 28W TDP. The socket is Intel BGA 1449, indicating a soldered mobile design, and the die size is 144 mm². Cache is notably smaller: 80 KB L1 per core, 1.25 MB L2 per core, and just 8 MB shared L3. Memory support extends to DDR4 and LPDDR4X in dual-channel mode, though no memory bandwidth figure is provided. ECC memory is not supported, and PCIe connectivity is limited to Gen 4 with 4 lanes from the CPU, compared to the AMD part's Gen 5 with 24 lanes.

Process node and foundry differences are stark: TSMC's 5 nm versus Intel's 10 nm, with the AMD chip using roughly half the die area for twice the core count. The Intel part's integrated graphics, Iris Xe Graphics G7 80EU, is more capable for mobile use, but the AMD chip's Radeon Graphics still provides display output for workstation tasks. The Intel processor launched in September 2020, while the AMD part arrived in June 2023, and the Intel chip is now end-of-life.

Head-to-Head Benchmarks

The Cinebench results are remarkably consistent in their magnitude, with the AMD Ryzen 9 PRO 7945 winning every test by approximately 410%. In Cinebench R15 multi-core, the AMD chip scores 3,996 against 783 for the Intel part, a 410.3% delta. Single-core R15 shows 564 versus 110, a 412.7% lead — the largest margin of any test. Cinebench R20 multi-core yields 16,654 versus 3,266 (409.9%), and single-core 2,351 versus 461 (410%). Cinebench R23, the most demanding workload, sees the AMD chip hit 39,653 multi-core versus 7,777 (409.9%) and 5,598 single-core versus 1,098 (409.8%).

What is striking is the uniformity of the deltas across all six tests, hovering between 409.8% and 412.7%. This consistency suggests the performance gap is not workload-dependent but structural — the Ryzen 9 PRO 7945 simply has three times the cores, higher clock speeds, and a more efficient architecture. The Intel part's best showing relative to its rival is in Cinebench R23 single-core, where it still trails by 409.8%, meaning the AMD chip is over five times faster in every scenario measured.

The aggregate benchmark scores from the nearestRivals data reinforce this picture. The Intel Core i5-1145G7's average score of 11,279 places it just 1.7% below the AMD Ryzen 9 PRO 7945's 11,469, but this aggregate includes a broader set of tests, including Geekbench and Passmark results for the Intel part that are not present for the AMD chip. Within the shared Cinebench tests, the AMD advantage is overwhelming and unambiguous.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 PRO 7945 has 12 cores and 24 threads, while the Intel Core i5-1145G7 has 4 cores and 8 threads.

Q: What are the boost clock speeds of each processor?

A: The AMD Ryzen 9 PRO 7945 boosts to 5.40 GHz, and the Intel Core i5-1145G7 boosts to 4.40 GHz.

Q: Does either processor support ECC memory?

A: The AMD Ryzen 9 PRO 7945 supports ECC memory; the Intel Core i5-1145G7 does not.

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

A: The AMD Ryzen 9 PRO 7945 scores 39,653, which is 409.9% higher than the Intel Core i5-1145G7's 7,777.

Q: What memory types does each processor support?

A: The AMD Ryzen 9 PRO 7945 supports DDR5 in dual-channel mode; the Intel Core i5-1145G7 supports DDR4 and LPDDR4X in dual-channel mode.

Q: What is the production status of each processor?

A: The AMD Ryzen 9 PRO 7945 is listed as Active, while the Intel Core i5-1145G7 is End-of-life.

Where Each One Wins

The AMD Ryzen 9 PRO 7945 wins in every benchmark category measured. In multi-threaded workloads, its 12-core, 24-thread configuration delivers a 409.9% advantage in Cinebench R23 multi-core, making it the clear choice for rendering, video encoding, scientific computing, and server workloads. Its 5.40 GHz boost clock and 64 MB L3 cache also give it a decisive edge in single-threaded tasks, where it leads by 409.8% in Cinebench R23 single-core. The AMD part also wins on platform features: DDR5 memory with 83.2 GB/s bandwidth, ECC support, PCIe Gen 5 with 24 lanes, and a 5 nm process that enables 65W TDP performance that rivals far larger desktop chips.

The Intel Core i5-1145G7 wins in scenarios where power consumption and form factor matter more than raw performance. Its 28W TDP is less than half the AMD part's 65W, making it suitable for laptops and compact devices where thermal headroom is limited. The integrated Iris Xe Graphics G7 80EU is a mobile-oriented GPU, and the BGA 1449 socket indicates a soldered, non-upgradeable design typical of ultraportables. The Intel chip also benefits from a much earlier release date and a $309 launch MSRP, but as an end-of-life product, its long-term viability is questionable. For users who need a low-power mobile processor for everyday tasks, the Core i5-1145G7 has a role; for anyone prioritizing performance, the Ryzen 9 PRO 7945 is the only rational choice based on the data.