AMD Athlon X4 970 vs AMD EPYC 7282 Comparison

FAQ

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

A: The AMD EPYC 7282 dominates multi-core tests. In Cinebench R23 multi-core, it scores 25,616 versus 3,081 for the AMD Athlon X4 970, a 731.4% advantage. The EPYC also leads Cinebench R20 multi-core with 10,758 versus 1,294, and Cinebench R15 multi-core with 2,581 versus 310.

Q: How do the two compare in single-core performance?

A: The EPYC 7282 wins every single-core test. In Cinebench R23 single-core, it scores 3,616 versus 435 for the Athlon X4 970, a 731.3% gap. Cinebench R20 single-core shows 1,518 versus 182, a 734.1% difference. The EPYC also leads Cinebench R15 single-core with 364 versus no recorded Athlon score for that test.

Q: What are the core and thread counts?

A: The EPYC 7282 has 16 cores and 32 threads, while the Athlon X4 970 has 4 cores and 4 threads. This 4x core advantage and 8x thread advantage explains the massive multi-core performance gap.

Q: Which processor uses a more advanced manufacturing process?

A: The EPYC 7282 is built on TSMC's 7 nm process, while the Athlon X4 970 uses GlobalFoundries' 28 nm node. The EPYC also uses a smaller die size of 2x 74 mm² compared to 250 mm² for the Athlon, despite having more transistors at 7,600 million versus 3,100 million.

Q: How do the processors compare in memory bandwidth?

A: The EPYC 7282 supports eight-channel DDR4 memory with 85.3 GB/s bandwidth, while the Athlon X4 970 supports dual-channel DDR4 with 38.4 GB/s. The EPYC also supports ECC memory, which the Athlon does not.

Q: What is the market positioning of each processor?

A: The EPYC 7282 targets the Server/Workstation segment with PCIe Gen 4 and 128 lanes (CPU only). The Athlon X4 970 targets the Desktop segment with PCIe Gen 3 and 8 lanes (CPU only). Both are currently listed as Active in production status.

Architecture Differences

The AMD EPYC 7282 and AMD Athlon X4 970 represent two fundamentally different design philosophies from AMD. The EPYC 7282 belongs to the EPYC 7002 series and uses the Zen 2 architecture under the Rome codename. This is a 7 nm design fabricated by TSMC, using 7,600 million transistors across a 2x 74 mm² die configuration. The Athlon X4 970, by contrast, uses the Excavator architecture under the Bristol Ridge codename, a 28 nm design from GlobalFoundries with 3,100 million transistors on a single 250 mm² die.

The cache hierarchy differs substantially. The EPYC 7282 provides 64 KB of L1 cache per core, 512 KB of L2 cache per core, and 32 MB of L3 cache per die, totaling 64 MB of L3. The Athlon X4 970 offers 320 KB of L1 cache and 2 MB of L2 cache total, with no L3 cache at all. This absence of L3 cache on the Athlon is a significant architectural limitation for memory-intensive workloads.

The EPYC 7282 is designed for the AMD Socket SP3 platform with eight-channel DDR4 memory support and 85.3 GB/s of memory bandwidth. It also enables ECC memory, a requirement for server reliability. The Athlon X4 970 uses AMD Socket AM4 with dual-channel DDR4 memory and 38.4 GB/s bandwidth, and it does not support ECC memory.

PCIe capabilities also diverge sharply. The EPYC 7282 provides PCIe Gen 4 with 128 lanes (CPU only), while the Athlon X4 970 provides PCIe Gen 3 with 8 lanes (CPU only). This makes the EPYC suitable for high-bandwidth expansion in servers, while the Athlon is limited to basic desktop connectivity.

The clock speeds tell an interesting story. The Athlon X4 970 has a higher base clock of 3.80 GHz and boost clock of 4.00 GHz, compared to 2.80 GHz base and 3.20 GHz boost for the EPYC 7282. Despite this clock disadvantage, the EPYC's modern architecture and massive core count produce vastly superior benchmark results. The EPYC also has a TDP of 120 watts, while the Athlon draws only 65 watts.

The EPYC 7282 was released on 2019-08-06, while the Athlon X4 970 came earlier on 2017-07-26. Neither processor has an unlocked multiplier, so overclocking headroom is limited for both. The EPYC's part number is 100-000000078, and the Athlon's part number is AD970XAUABBOXAD970XAUM44AB.

Head-to-Head Benchmarks

The head-to-head data shows a complete sweep for the AMD EPYC 7282, winning all five recorded comparisons. The most dramatic result is in Cinebench R20 single-core, where the EPYC scores 1,518 against 182 for the Athlon X4 970, a 734.1% advantage. This is remarkable because single-core tests typically favor higher clock speeds, but the Athlon's 4.00 GHz boost cannot overcome the architectural efficiency of Zen 2 at 3.20 GHz.

Multi-core results are equally lopsided. Cinebench R15 multi-core shows the EPYC at 2,581 versus 310 for the Athlon, a 732.6% difference. Cinebench R20 multi-core shows 10,758 versus 1,294, a 731.4% gap. Cinebench R23 multi-core shows 25,616 versus 3,081, also a 731.4% difference. These consistent margins across different Cinebench versions indicate that the performance gap scales predictably with the workload.

The Cinebench R23 single-core test shows 3,616 for the EPYC versus 435 for the Athlon, a 731.3% difference. The near-uniform delta percentages across all tests, ranging from 731.3% to 734.1%, suggest that the EPYC's advantage is not workload-specific but reflects a fundamental architectural superiority. The 16-core, 32-thread configuration with 64 MB of L3 cache simply overwhelms the 4-core, 4-thread Athlon with no L3.

The Athlon X4 970 does have additional PassMark results in the database, including data compression at 62,454, data encryption at 1,146, extended instructions at 2,156, find prime numbers at 11, floating point math at 6,049, integer math at 19,174, multithread at 3,625, physics at 243, random string sorting at 6,128, and single thread at 1,658. However, the EPYC 7282 has no corresponding PassMark entries in the recorded data, so no direct comparison is possible for these specific tests.

The average benchmark score in the database places the EPYC 7282 at 7,409 and the Athlon X4 970 at 6,850. Interestingly, both processors sit at the 63rd percentile against all CPUs, which reflects the wide range of processors in the database rather than equivalence between these two parts. The EPYC's nearest rivals include the Intel Core i9-9990XE at an average score of 7,415 and the Intel Core i5-4570 at 7,421. The Athlon's nearest rivals include the Intel Core i3-1115G4 at 6,851 and the AMD Athlon Silver 10 at 6,849.

Specification Differences

The two processors differ in nearly every specification category. The EPYC 7282 has 16 cores and 32 threads, while the Athlon X4 970 has 4 cores and 4 threads. The EPYC's base clock is 2.80 GHz with a boost of 3.20 GHz, while the Athlon runs at 3.80 GHz base and 4.00 GHz boost. The EPYC has a TDP of 120 watts, the Athlon 65 watts.

The socket platforms are incompatible: the EPYC uses AMD Socket SP3, the Athlon uses AMD Socket AM4. The EPYC uses the Zen 2 architecture with the Rome codename, while the Athlon uses Excavator with the Bristol Ridge codename. The manufacturing process differs: 7 nm from TSMC for the EPYC, 28 nm from GlobalFoundries for the Athlon. Transistor counts are 7,600 million versus 3,100 million, and die sizes are 2x 74 mm² versus 250 mm².

Cache configurations are entirely different. The EPYC provides 64 KB L1 per core, 512 KB L2 per core, and 32 MB L3 per die for a total of 64 MB L3. The Athlon provides 320 KB L1 total and 2 MB L2 total, with no L3. Memory support for the EPYC is eight-channel DDR4 with 85.3 GB/s bandwidth and ECC support. The Athlon supports dual-channel DDR4 with 38.4 GB/s and no ECC.

PCIe capabilities differ: the EPYC offers Gen 4 with 128 lanes (CPU only), while the Athlon offers Gen 3 with 8 lanes (CPU only). The EPYC targets the Server/Workstation segment, the Athlon targets Desktop. The EPYC has a launch MSRP of $650, while the Athlon has no recorded launch MSRP. The EPYC was released on 2019-08-06, the Athlon on 2017-07-26. Neither has an unlocked multiplier.

The Verdict

The benchmark data is unambiguous: the AMD EPYC 7282 is the superior processor in every measured category. It wins all five head-to-head comparisons with margins exceeding 731%. The EPYC's 16 cores and 32 threads, combined with 64 MB of L3 cache and eight-channel memory support, deliver performance that the Athlon X4 970 cannot approach despite its higher clock speeds.

The EPYC 7282 also offers features that matter for professional workloads: ECC memory support, PCIe Gen 4 with 128 lanes, and 85.3 GB/s memory bandwidth. The Athlon X4 970, with its dual-channel memory, PCIe Gen 3 with 8 lanes, and no ECC support, is fundamentally a desktop part with limited expansion and reliability capabilities.

The average benchmark scores reinforce this conclusion. The EPYC sits at 7,409, nearly matching the Intel Core i9-9990XE at 7,415 and slightly exceeding the Intel Core i9-9980XE at 7,398. The Athlon X4 970 sits at 6,850, close to the Intel Core i3-1115G4 at 6,851. These comparison points place the EPYC in a much higher performance class.

However, the Athlon X4 970 does have advantages in specific areas. Its TDP of 65 watts is nearly half the EPYC's 120 watts, making it more power-efficient for basic desktop tasks. Its higher base and boost clocks of 3.80 GHz and 4.00 GHz could provide snappier response in lightly threaded applications, though the benchmark data does not confirm this. Its Socket AM4 platform is designed for desktop motherboards, which are generally more accessible than the SP3 server platform.

Where Each One Wins

The AMD EPYC 7282 wins in every benchmark category where both processors have recorded results. This includes all multi-core tests across Cinebench R15, R20, and R23, and all single-core tests in R20 and R23. The EPYC's strengths are most pronounced in multi-threaded server workloads: database serving, virtualization, scientific computing, and content rendering. Its 32 threads and 64 MB of L3 cache provide massive parallel throughput, while ECC memory and PCIe Gen 4 with 128 lanes support large-scale storage and networking configurations.

The EPYC 7282 also wins in memory bandwidth, with 85.3 GB/s versus 38.4 GB/s for the Athlon. This matters for workloads that stream large datasets, such as data analytics and in-memory databases. The eight-channel memory bus provides 2.2 times the bandwidth of the Athlon's dual-channel configuration, and the ECC support adds reliability for long-running server deployments.

The AMD Athlon X4 970 wins in power consumption, with a 65-watt TDP versus 120 watts for the EPYC. For simple desktop tasks like web browsing, office productivity, and media playback, the Athlon draws less power and generates less heat. Its higher clock speeds of 3.80 GHz base and 4.00 GHz boost are the only specification where it leads the EPYC, though the benchmark data shows the EPYC still wins single-core tests by over 731%.

The Athlon's Socket AM4 platform is also a point in its favor for desktop builders, as it is compatible with a wide range of consumer motherboards. The EPYC's Socket SP3 platform requires server-class motherboards, which are larger, more expensive, and designed for rack-mounted systems. For a basic desktop build with modest performance requirements, the Athlon X4 970's lower power draw and consumer platform compatibility make it a viable choice, provided the user understands that its performance is drastically lower than the EPYC in every recorded benchmark.