AMD EPYC 75F3 vs Intel Core i7-1260U Comparison

The Intel Core i7-1260U and AMD EPYC 75F3 sit at opposite ends of the computing spectrum, and the recorded data makes the contrast unusually stark. Both CPUs land in the 70th percentile of the database and post nearly identical average benchmark scores, 16320 for the Core i7-1260U versus 15859 for the EPYC 75F3, yet the EPYC wins every single head-to-head test by margins approaching 86 percent. That apparent paradox comes down to which workloads feed each aggregate figure, and this page unpacks it in detail.

FAQ

Q: Which CPU is faster overall?

A: The AMD EPYC 75F3 wins all six direct head-to-head comparisons, from Cinebench R15 to Cinebench R23, in both single-core and multi-core disciplines. Its largest lead is Cinebench R23 multi-core, where it scores 54829 against 7912.5, a gap of 85.6 percent.

Q: How can the average benchmark scores be so close if the EPYC wins everything?

A: The Core i7-1260U carries a broader set of recorded results, including PassMark suites such as data compression (152217), data encryption (9480), integer math (45887), and single-thread tests (3153), which lift its average benchmark score to 16320. The EPYC 75F3 has recorded Cinebench results only in this database, averaging 15859. The averages therefore measure different mixes of tests, not comparable performance.

Q: Which chip has more cores and threads?

A: The EPYC 75F3, by a wide margin: 32 cores and 64 threads against 10 cores and 12 threads for the Core i7-1260U. The hybrid Alder Lake design also means the Intel part has fewer threads than cores would suggest, since its thread count (12) exceeds its core count (10) only modestly.

Q: Is the EPYC 75F3 energy efficient?

A: The recorded data does not support that reading. Its TDP is 280 watts against 9 watts for the Core i7-1260U, meaning the server chip is rated for vastly higher power draw. Performance per watt strongly favors the Intel mobile part in raw terms, though the database does not compute that metric directly.

Q: Which CPU supports ECC memory?

A: Only the EPYC 75F3, which pairs eight-channel DDR4 with ECC support and 204.8 GB/s of memory bandwidth. The Core i7-1260U has ECC disabled and uses a dual-channel bus supporting both DDR4 and DDR5.

Q: Which platform is newer?

A: The Core i7-1260U, released 2022-02-22, arrived roughly a year after the EPYC 75F3, which launched 2021-03-14. Both remain listed as Active parts in the database.

Architecture Differences

These two processors embody entirely different design philosophies. The Core i7-1260U is Intel's Alder Lake-U design, codenamed Alder Lake, built on Intel's own 10 nm process. It is a mobile chip optimized for thin, power-constrained devices, with a base clock of 1100.00 MHz, a boost clock of 4.70 GHz, and a 9 watt TDP. Its hybrid core arrangement totals 10 cores and 12 threads, and it includes integrated graphics in the form of Iris Xe with 96 execution units, something the EPYC completely lacks.

The EPYC 75F3 belongs to AMD's Zen 3 generation, codename Milan, fabbed by TSMC on a 7 nm node. It is a server and workstation part with a homogeneous 32-core, 64-thread layout, a 2.95 GHz base clock, and a 4.00 GHz boost clock. Where the Core i7-1260U must fit a tight thermal envelope, the EPYC is rated at 280 watts and is built for sustained throughput.

Cache design reflects the same divergence. The Core i7-1260U carries 80 KB of L1 per core, 1.25 MB of L2 per core, and 12 MB of shared L3. The EPYC 75F3 has 64 KB of L1 per core and 512 KB of L2 per core, but its shared L3 is enormous at 256 MB, more than twenty times the Intel chip's, and its package is composed of eight dies of 81 mm² each with 33,200 million transistors. That cache capacity is central to its role in datacenter workloads with large working sets.

Platform connectivity also differs radically. The Intel part offers PCIe Gen 4 in a dual-channel memory configuration, while the EPYC provides PCIe Gen 4 with 128 lanes from the CPU alone and an eight-channel DDR4 memory bus delivering 204.8 GB/s of bandwidth. The sockets are obviously incompatible: Intel BGA 1781, soldered for mobile integration, versus AMD Socket SP3 for server boards. Both processors have locked multipliers.

The Verdict

The data frames this as a category mismatch rather than a contest. For mobile computing, the Core i7-1260U is the only viable option of the two: it runs at 9 watts, includes Iris Xe 96EU integrated graphics, supports both DDR4 and DDR5, and boosts to 4.70 GHz for snappy lightly-threaded responsiveness. Its percentile ranking of 70 and average score of 16320 place it alongside chips like the AMD Ryzen 5 4600H (16341, a delta of -0.1 percent), the AMD EPYC 7543P (16395, -0.5 percent), the Intel Core i5-10600KF (16228, 0.6 percent), and the Intel Core i7-10850H (16204, 0.7 percent), which is respectable company for a thin-and-light mobile processor.

For sustained compute, the EPYC 75F3 is in a different league entirely. It wins every recorded head-to-head benchmark, takes Cinebench R23 multi-core by 85.6 percent, and pairs that throughput with ECC memory, eight-channel DDR4, and 128 PCIe Gen 4 lanes. Its nearest rivals by average score include the AMD EPYC 9354P (15826, 0.2 percent), the AMD EPYC 9334 (15940, -0.5 percent), and the Intel Core Ultra 5 134U (15910, -0.3 percent), underscoring that its aggregate placement is shaped by the limited test mix recorded. Choose the Core i7-1260U for mobile efficiency and single-user systems; choose the EPYC 75F3 for servers and workstations where core count, memory bandwidth, and reliability features matter. Neither substitutes for the other.

Specification Differences

The table of differences is long, and every entry favors a different design goal:

• Cores/Threads: 10 cores, 12 threads (Core i7-1260U) versus 32 cores, 64 threads (EPYC 75F3).
• Base Clock: 1100.00 MHz versus 2.95 GHz.
• Boost Clock: 4.70 GHz versus 4.00 GHz.
• TDP: 9 watts versus 280 watts.
• Architecture: Alder Lake versus Zen 3 (Milan).
• Process Node: 10 nm at Intel versus 7 nm at TSMC.
• L1 Cache: 80 KB per core versus 64 KB per core.
• L2 Cache: 1.25 MB per core versus 512 KB per core.
• L3 Cache: 12 MB shared versus 256 MB shared.
• Memory Support: DDR4 and DDR5 versus DDR4 only, but with ECC enabled.
• Memory Bus: Dual-channel versus eight-channel, with the EPYC rated at 204.8 GB/s bandwidth.
• PCIe: Gen 4 versus Gen 4 with 128 CPU lanes.
• Integrated Graphics: Iris Xe 96EU versus none.
• Socket: Intel BGA 1781 versus AMD Socket SP3.
• Market Segment: Mobile versus Server/Workstation.
• Release Date: 2022-02-22 versus 2021-03-14.
• Transistors and Die: not recorded for the Intel chip; the EPYC lists 33,200 million transistors across eight 81 mm² dies.
• Launch MSRP: the EPYC 75F3 carries a launch MSRP of $4860; the Core i7-1260U has no launch MSRP recorded.

One notable pattern: the Intel chip leads on per-core L1 and L2 cache sizes and on peak clock, while the EPYC dominates on L3 capacity, memory bandwidth, and raw parallelism.

Head-to-Head Benchmarks

The head-to-head record is a clean sweep, six wins for the EPYC 75F3 and zero for the Core i7-1260U, but the magnitude varies in ways worth examining.

Multi-core results show the widest gaps, as expected given the 32-versus-10 core disparity. In Cinebench R15 multi-core the EPYC scores 5526 to the Core i7's 1203, a 78.2 percent difference. Cinebench R20 multi-core widens the gap to 79.4 percent, 23028 versus 4736. Cinebench R23 multi-core is the most lopsided test of all: 54829 versus 7912.5, a staggering 85.6 percent margin. That escalation across R15, R20, and R23 suggests longer, more sustained render workloads increasingly expose the mobile chip's power and thermal limits, letting the EPYC's 64 threads stretch their advantage.

Single-core results are closer in percentage terms but still decisive. Cinebench R15 single-core reads 780 for the EPYC against 219.5 for the Intel, a 71.9 percent gap. Cinebench R20 single-core goes to the EPYC 3250 versus 668, or 79.4 percent, and Cinebench R23 single-core lands at 7740 versus 1601, 79.3 percent apart. This is the more surprising half of the sweep: despite the Core i7-1260U boosting to 4.70 GHz versus the EPYC's 4.00 GHz, and despite Alder Lake being a newer architecture on a newer release date, the EPYC's Zen 3 cores deliver roughly four times the per-core rendering throughput in these tests. Sustained clocks under the server platform's far higher power budget, rather than peak boost figures, are the likely explanation, though the database records only the scores themselves.

Context from each chip's rival list sharpens the picture. The Core i7-1260U's average of 16320 sits within half a percent of mainstream desktop and mobile chips, which is exactly where a 9 watt ultrabook processor should land. The EPYC 75F3's average of 15859 sits near other server silicon, and its percentile ranking of 70 matches the Intel chip's precisely. Identical percentile placement with radically different head-to-head outcomes is the clearest illustration of why aggregate scores should never be read as a cross-segment prediction: the recorded data shows two processors engineered for incompatible jobs, and the benchmarks reward the one built to compute without compromise.