AMD A10-7850K vs Intel Xeon X3440 Comparison

Head-to-Head Benchmarks

The recorded data for these two processors comes from different benchmark suites, so a direct per-test comparison is not possible. However, the aggregate scores and percentile rankings provide a clear picture of their relative standing. The Intel Xeon X3440 holds an average benchmark score of 815, while the AMD A10-7850K averages 796. This places the Xeon X3440 at the 22nd percentile of all CPUs in the database, with the A10-7850K marginally behind at the 21st percentile. The 19-point gap in average score is modest, but the Xeon's position among its nearest rivals shows a slightly stronger competitive stance. Its closest competitor, the Intel Core i5-L16G7, scores 816, a delta of -0.1%, while the Core 2 Extreme QX9775 and Core i7-5550U both score 813, putting them 0.2% behind the Xeon. The Xeon E5540 sits 0.7% ahead with a score of 820.

For the AMD A10-7850K, the nearest rival is the AMD Ryzen Embedded R1606G, which scores 797, a delta of -0.1%. The AMD A6-9400 and A10-5800B both score 794, placing them 0.2% and 0.3% behind respectively. The Intel Pentium Silver J5040 scores 801, which is 0.6% ahead. These deltas are all within a single percentage point, indicating that both chips occupy a tightly packed performance tier. The Xeon X3440's benchmark results in Cinebench show a multicore score of 238 in R15, 994 in R20, and 2368 in R23. Its single-core scores in R20 and R23 are 140 and 334 respectively. The A10-7850K, by contrast, has Geekbench scores of 1139 for multicore and 453 for single-core. Without overlapping tests, the aggregate averages serve as the primary comparison metric, and they show the Xeon leading by a slim margin.

Where Each One Wins

The Xeon X3440 wins on raw multithreaded throughput in the database's aggregate scoring. Its 8 threads, enabled by Hyper-Threading, allow it to outperform the 4-thread A10-7850K in synthetic multi-core workloads. The Xeon's Cinebench R23 multicore score of 2368, when considered against its single-core score of 334, shows a scaling factor of roughly 7x, which is typical for a chip with 4 cores and 8 threads. This suggests strong parallel efficiency. The average score of 815 versus 796 also indicates that in mixed workloads, the Xeon tends to edge ahead.

The A10-7850K wins in single-core performance based on its Geekbench results. Its single-core score of 453 against a multicore score of 1139 shows a scaling factor of only 2.5x, which is low for a 4-core processor. This implies that its multicore score is held back by the lack of simultaneous multithreading, but its per-core performance is respectable. The A10's higher base clock of 3.70 GHz and boost clock of 4.00 GHz, compared to the Xeon's 2.53 GHz base and 2.93 GHz boost, contribute to its advantage in lightly threaded tasks. For applications that rely on a single thread, such as older games or certain legacy software, the A10-7850K is the stronger choice.

The integrated graphics on the A10-7850K, a Radeon R7, provide a decisive advantage for systems without a discrete GPU. The Xeon X3440 has no integrated graphics, so it requires a separate graphics card for any display output. This makes the A10 a more versatile option for basic desktop use or media playback. The Xeon, being a server/workstation part, is designed for headless operation or with a dedicated GPU. In terms of platform features, the Xeon supports ECC memory, which is absent on the A10. That makes the Xeon suitable for error-sensitive computing environments, while the A10 is better for consumer desktops where ECC is not a requirement.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Xeon X3440 has an average benchmark score of 815, while the AMD A10-7850K scores 796. The Xeon leads by 19 points.

Q: How do their percentile rankings compare?

A: The Xeon X3440 is at the 22nd percentile of all CPUs, and the A10-7850K is at the 21st percentile. Both are within one percentile of each other.

Q: Does the A10-7850K have integrated graphics?

A: Yes, the A10-7850K features a Radeon R7 integrated graphics unit. The Intel Xeon X3440 has no integrated graphics.

Q: Which processor supports ECC memory?

A: The Intel Xeon X3440 supports ECC memory, while the AMD A10-7850K does not.

Q: What is the difference in thread counts?

A: The Xeon X3440 has 4 cores and 8 threads, while the A10-7850K has 4 cores and 4 threads.

Q: Are both processors end-of-life?

A: Yes, both the Intel Xeon X3440 and the AMD A10-7850K are listed as end-of-life products in the database.

Specification Differences

The two processors differ significantly in their specifications. The Intel Xeon X3440 has a base clock of 2.53 GHz and a boost clock of 2.93 GHz, while the AMD A10-7850K operates at a base clock of 3.70 GHz and a boost clock of 4.00 GHz. The A10 has substantially higher clock speeds. Both have a TDP of 95 watts, so power consumption is identical on paper. The Xeon uses the Intel Socket 1156, while the A10 uses the AMD Socket FM2+. The Xeon supports dual-channel DDR3 memory with a bandwidth of 21.3 GB/s, whereas the A10's memory bus and bandwidth are not specified in the database. ECC memory is supported on the Xeon but not on the A10.

The PCIe configurations also differ: the Xeon provides Gen 2 with 16 lanes (CPU only), while the A10 offers Gen 3 with 16 lanes (CPU only). The Xeon has a multiplier lock, making overclocking impossible, while the A10 has an unlocked multiplier. The market segments are different as well: the Xeon is classified as Server/Workstation, and the A10 is Desktop. The Xeon has a launch MSRP of $215, while the A10 does not have a recorded launch MSRP. The Xeon was released on 2009-09-07, and the A10 on 2014-01-13.

Architecture Differences

The architectural split between these two is substantial. The Intel Xeon X3440 is built on the Nehalem architecture, specifically the Lynnfield codename, using a 45 nm process node fabricated by Intel. It contains 774 million transistors on a die size of 296 mm². The cache hierarchy includes 64 KB of L1 per core, 256 KB of L2 per core, and a shared 8 MB L3 cache. The AMD A10-7850K uses the Steamroller architecture, codenamed Kaveri, manufactured by GlobalFoundries on a 28 nm process. It packs 2,411 million transistors into a 245 mm² die. Its cache is simpler: 256 KB of L1 and 4 MB of L2, with no L3 cache present.

The transistor count difference is stark, with the A10 having over three times as many transistors as the Xeon, despite a smaller die. This reflects the integration of the Radeon R7 graphics and the more advanced process node. The Xeon's older 45 nm process limits its transistor density, but its large shared L3 cache helps mitigate memory latency. The A10's lack of L3 cache is compensated by its higher clock speeds and the integrated memory controller, though the memory bandwidth is not recorded.

The generation labels in the database, "Xeon (Lynnfield)" and "A10 (Kaveri)", confirm that these are from different eras of processor design. The Xeon's Nehalem architecture is a predecessor to Sandy Bridge, while the A10's Steamroller is a later refinement of AMD's Bulldozer lineage. The Xeon supports PCIe Gen 2, while the A10 supports PCIe Gen 3, which is a generational improvement. The A10 also has an unlocked multiplier for enthusiast tuning, a feature absent on the Xeon. The integrated graphics on the A10, part of the Kaveri die, add significant functionality that the Xeon lacks entirely.

The ECC memory support on the Xeon is a server-grade feature, stemming from its Lynnfield Xeon heritage, while the A10's consumer-focused design omits this. The differences in socket compatibility mean these processors cannot be interchanged on any motherboard. Overall, the Xeon is a mature, high-core-count server chip with a focus on reliability and multithreaded throughput, while the A10 is a modern, high-clock-speed APU with integrated graphics and overclocking flexibility, aimed at value-oriented desktop builds. The data shows that despite their architectural disparity, they end up in nearly the same performance tier, separated by only a few percent in aggregate scoring.