AMD Athlon PRO 3045B vs Intel Core i5-2500T Comparison

Head-to-Head Benchmarks

The benchmark data shows a consistent, though narrow, advantage for the Intel Core i5-2500T across every recorded workload. The AMD Athlon PRO 3045B wins zero of the five head-to-head comparisons, with the Intel part taking all five. The margins are remarkably uniform, hovering in the 5% range across both single-core and multi-core tests.

In Cinebench R15 multi-core, the Intel Core i5-2500T scores 250 against the AMD Athlon PRO 3045B's 237, a delta of -5.2% for the AMD part. That translates to a 13-point gap, which is meaningful but not decisive in real-world rendering tasks. The Cinebench R20 multi-core test shows a similar pattern: Intel scores 1045, AMD scores 988, a -5.5% difference. The 57-point spread suggests the Intel chip's four physical cores provide a slight throughput edge over AMD's two cores with four threads.

Single-core results tell the same story. In Cinebench R20 single-core, the Intel Core i5-2500T posts 147 against AMD's 139, a -5.4% delta. Cinebench R23 single-core shows Intel at 351 and AMD at 332, again -5.4%. The consistency of these percentages across different Cinebench versions indicates the performance gap is structural rather than workload-specific.

The Cinebench R23 multi-core result reinforces the trend: Intel scores 2489, AMD scores 2354, a -5.4% difference. This 135-point gap is the largest absolute margin in the dataset, though proportionally it matches the other tests. The AMD part also has Geekbench results not recorded for the Intel side, with a multi-core score of 1287 and a single-core score of 766, but these cannot be directly compared in the head-to-head table.

The average benchmark scores place the two chips close together in the database's overall ranking. The AMD Athlon PRO 3045B has an average score of 872, while the Intel Core i5-2500T averages 856. Both sit at the 23rd percentile among all CPUs tracked. The AMD part's nearest rivals include the Intel Atom C5315 at 871 (delta 0.1%), the Intel Core i3-5157U at 877 (delta -0.5%), the Intel Core i7-3540M at 867 (delta 0.6%), and the Intel Xeon X3460 at 866 (delta 0.6%). The Intel Core i5-2500T's nearest rivals are the Intel Core i5-5250U at 856 (delta 0.1%), the Intel Core i7-4500U at 859 (delta -0.4%), the AMD A8-7650K at 860 (delta -0.5%), and the Intel Xeon X5492 at 852 (delta 0.5%). This puts both processors in essentially the same performance tier, surrounded by older mobile and desktop parts.

The data shows no scenario where the AMD Athlon PRO 3045B pulls ahead. Even in the most favorable interpretation, the Intel Core i5-2500T maintains a lead of roughly 5% in every benchmark. The lack of any AMD win in the head-to-head table is notable, especially given the architectural differences between the two (Zen versus Sandy Bridge). The margins are small enough that they could be considered noise in some contexts, but the consistency across five separate tests strongly suggests a real, if modest, performance advantage for the Intel chip.

The Verdict

The benchmark data points to a clear, if narrow, choice. The Intel Core i5-2500T outperforms the AMD Athlon PRO 3045B in every recorded test, with deltas between -5.2% and -5.5% across Cinebench R15, R20, and R23, both single-core and multi-core. Users seeking maximum compute throughput, even by a small margin, should select the Intel part based strictly on these results.

However, the broader context from the database complicates the picture. The AMD Athlon PRO 3045B has a higher average benchmark score (872 versus 856) and a lower TDP (15 watts versus 45 watts). The AMD chip is also listed as Active in production, while the Intel Core i5-2500T is End-of-life. For a system builder prioritizing energy efficiency or long-term availability, the AMD part may be the more pragmatic choice despite losing every head-to-head test.

The Intel Core i5-2500T makes sense for users who need the extra 5% performance in Cinebench-class workloads and do not care about power draw or platform longevity. The AMD Athlon PRO 3045B is the better pick for low-power or mobile deployments where the 30-watt TDP difference matters more than a 5% performance deficit. The data does not support a recommendation for the AMD part on raw speed, but it does support it on efficiency and production status.

FAQ

Q: Which CPU wins in multi-core performance?

A: The Intel Core i5-2500T wins all multi-core tests. In Cinebench R23 multi-core, it scores 2489 against the AMD Athlon PRO 3045B's 2354, a -5.4% delta. The Cinebench R20 multi-core result is 1045 versus 988, and Cinebench R15 multi-core is 250 versus 237.

Q: How do the single-core scores compare?

A: The Intel Core i5-2500T also leads in single-core. Cinebench R23 single-core shows Intel at 351 and AMD at 332, a -5.4% delta. Cinebench R20 single-core is 147 versus 139, also -5.4%.

Q: Are these CPUs in the same performance tier?

A: Yes. Both sit at the 23rd percentile among all CPUs. The AMD part has an average score of 872, and the Intel part averages 856. Their nearest rivals overlap in the same score range, roughly 852 to 877.

Q: What is the TDP difference between the two?

A: The AMD Athlon PRO 3045B has a TDP of 15 watts, while the Intel Core i5-2500T has a TDP of 45 watts. That is a 30-watt difference in favor of the AMD chip.

Q: Which CPU has more cores?

A: The Intel Core i5-2500T has 4 cores, while the AMD Athlon PRO 3045B has 2 cores. Both support 4 threads, so the Intel chip has one thread per core, while the AMD chip uses two threads per core.

Q: What is the production status of each CPU?

A: The AMD Athlon PRO 3045B is listed as Active in production. The Intel Core i5-2500T is listed as End-of-life.

Specification Differences

The two processors differ in almost every major specification category. The AMD Athlon PRO 3045B uses a dual-core, four-thread layout, while the Intel Core i5-2500T uses a quad-core, four-thread layout. Both have a base clock of 2.30 GHz, but the Intel part boosts to 3.30 GHz versus the AMD part's 3.20 GHz.

The TDP gap is substantial: the AMD chip draws 15 watts, the Intel chip draws 45 watts. The AMD part uses an AMD Socket FP5, while the Intel part uses an Intel Socket 1155. Their memory support differs as well, with the AMD chip using DDR4 and the Intel chip using DDR3, both in dual-channel mode. The AMD chip supports ECC memory, while the Intel chip does not.

The AMD Athlon PRO 3045B has 12 PCIe Gen 3 lanes (CPU only), while the Intel Core i5-2500T has 16 PCIe Gen 3 lanes (CPU only). The integrated graphics differ: the AMD part features Radeon Vega (2CU), while the Intel part features Intel HD 2000. The market segments also differ, with the AMD chip classified as Mobile and the Intel chip as Desktop. Finally, the Intel part has a release date of 2011-01-08, while the AMD part has no recorded release date in the database.

Architecture Differences

The architectural gap between these two CPUs is significant. The AMD Athlon PRO 3045B is built on the Zen architecture with the codename Dali, part of the 3000 series and the Athlon generation. The Intel Core i5-2500T uses the Sandy Bridge architecture, also its codename, from the Core i5 generation. These architectures are separated by roughly a decade of design philosophy.

The manufacturing process differs: the AMD chip uses a 14 nm node from GlobalFoundries, while the Intel chip uses a 32 nm node from Intel. The AMD chip packs 3,500 million transistors on a 148 mm² die, whereas the Intel chip has 1,160 million transistors on a larger 216 mm² die. This means the AMD part achieves higher transistor density despite having fewer cores, a consequence of the newer process node.

Cache layouts also differ. The AMD Athlon PRO 3045B has 96 KB of L1 cache per core and 512 KB of L2 cache per core, with 4 MB of shared L3 cache. The Intel Core i5-2500T has 64 KB of L1 cache per core and 256 KB of L2 cache per core, with 6 MB of shared L3 cache. The Intel chip therefore has more total L3 cache (6 MB versus 4 MB), but the AMD chip has more per-core L1 and L2 cache.

The memory bandwidth figures are recorded only for the AMD part, at 38.4 GB/s. The Intel chip has no recorded memory bandwidth in the database. Neither processor supports 3D V-Cache, and neither has an unlocked multiplier. The AMD part's part number is YM3045C4T2OFG, while the Intel part's is SR00A.