CPU Comparison

The AMD A8-9600 and Intel Xeon W3550 are separated by eight years of silicon evolution, yet their benchmark scores land within a single percentage point of each other. The data shows a fascinating collision between AMD’s 28 nm Excavator architecture and Intel’s 45 nm Nehalem design, where the newer chip wins every single head-to-head test, but by margins so narrow they border on statistical noise. Both processors carry a 26th percentile ranking among all CPUs, and their average benchmark scores differ by only six points (962 vs 956), making this one of the closest generational matchups in the database.

Head-to-Head Benchmarks

The AMD A8-9600 sweeps all five Cinebench comparisons, but the largest victory is a mere 0.7%. In Cinebench R15 multi-core, the AMD scores 281 against Intel’s 279, a delta of 0.7% that translates to just two points. The R20 multi-core test shows the same pattern: 1174 for AMD versus 1166 for Intel, again a 0.7% edge. The R23 multi-core results mirror this exactly, with 2797 against 2778, holding that identical 0.7% advantage. Single-core performance is even tighter. The R20 single-core test gives AMD a 165 to 164 win (0.6%), while R23 single-core shows 394 versus 392 (0.5%). The margins are consistent across every workload, AMD leads by roughly half a point per test, never more.

What makes these numbers striking is the hardware behind them. The Xeon W3550 runs eight threads across four cores, doubling the AMD’s thread count. It also carries 8 MB of shared L3 cache, while the A8-9600 has no L3 cache at all. Despite these structural advantages for Intel, the newer AMD part still edges ahead. The Xeon’s triple-channel DDR3 memory bus and higher 130-watt TDP do not translate into Cinebench wins. Conversely, the AMD’s 65-watt TDP and dual-channel DDR4 support do not hurt its scores. The data suggests that clock-for-clock efficiency has improved so much over the years that architectural maturity in the Intel part cannot compensate for the AMD’s newer process node and instruction set.

The nearest rival data reinforces how close these two are to a larger cluster of similarly performing chips. The AMD’s closest competitor, the Intel Pentium Gold G5500T, scores 963 with a delta of -0.1%, while the Core i3-4360T matches that 963 score. The AMD sits at 962, placing it squarely in a pack of low-power and older desktop parts. The Xeon W3550’s nearest rival is the AMD Athlon X4 870K at 956 with a 0% delta, and its own sibling, the Core i7-950, scores 957 with a -0.1% delta. Both CPUs are effectively interchangeable in raw throughput, landing within one point of several 2017-era Pentium and Celeron parts.

The Verdict

From the benchmark data alone, the AMD A8-9600 is the pick for anyone prioritizing raw Cinebench scores, even if the advantage is measured in single digits. Five wins out of five tests, with a consistent 0.5% to 0.7% lead, makes it the objectively faster processor in this comparison. The Xeon W3550 loses every test, but by such small margins that the difference is almost certainly imperceptible in real-world use. The data does not indicate any workload where the Intel part pulls ahead.

However, the decision is not purely about speed. The Xeon W3550 supports ECC memory, a feature entirely absent from the AMD part. The A8-9600 includes integrated Radeon R7 graphics, which the Xeon lacks entirely. The AMD runs on the AM4 socket with DDR4 memory and PCIe Gen 3, while the Intel uses Socket 1366 with DDR3 and PCIe Gen 2. These are not benchmark scores, but they are material differences that change which system each chip belongs in. If the requirement is a workstation with error-correcting memory, the Xeon is the only option, regardless of its slight performance deficit. If the requirement is a compact desktop with onboard graphics, the AMD wins by default.

Production status is also decisive. The AMD A8-9600 is listed as Active, while the Xeon W3550 is End-of-life. The AMD part is still available for new builds, whereas the Xeon exists only in the used market. For a new system, the data strongly favors the AMD part. For a legacy upgrade or a server repair, the Xeon remains a viable, if old, choice.

Where Each One Wins

The AMD A8-9600 wins in every measured benchmark, so the performance-based use-case split is straightforward: it is the better chip for Cinebench R15, R20, and R23, both single-core and multi-core. That covers rendering, 3D modeling, and any CPU-bound creative workload that scales with Cinebench scores. The AMD also wins on platform modernity, with DDR4 memory support, PCIe Gen 3, and an integrated GPU that eliminates the need for a separate graphics card in basic desktop tasks.

The Xeon W3550 wins on memory integrity and multi-threading capacity. Its eight threads, enabled by Hyper-Threading, do not produce a win in Cinebench, but they do offer more scheduling flexibility for heavily threaded server workloads that the benchmark may not fully capture. The ECC memory support is a genuine advantage for data-sensitive applications like file servers, database hosts, or any environment where a memory error could corrupt data. The triple-channel DDR3 memory bus also provides a wider memory pathway, even though the bandwidth figure is not listed in the data.

For gaming, the AMD part has a clear edge due to its integrated Radeon R7 graphics. The Xeon requires a discrete GPU, adding cost and complexity to any build. For office productivity and web browsing, both chips are functionally equivalent based on their similar single-core scores. For a home theater PC or a light desktop, the AMD’s integrated graphics and 65-watt TDP make it the obvious choice. For a rack-mounted server or a workstation that demands ECC, the Xeon is the only candidate.

FAQ

Q: Which CPU has the higher multi-core score in Cinebench R23?

A: The AMD A8-9600 scores 2797, while the Intel Xeon W3550 scores 2778, giving AMD a 0.7% lead.

Q: Does the Intel Xeon W3550 support ECC memory?

A: Yes, the Xeon W3550 supports ECC memory, while the AMD A8-9600 does not.

Q: Which processor includes integrated graphics?

A: Only the AMD A8-9600 includes integrated Radeon R7 graphics; the Intel Xeon W3550 has no integrated graphics.

Q: How do their average benchmark scores compare?

A: The AMD A8-9600 has an average benchmark score of 962, and the Intel Xeon W3550 has an average of 956, a difference of six points.

Q: What is the production status of each CPU?

A: The AMD A8-9600 is listed as Active, while the Intel Xeon W3550 is listed as End-of-life.

Q: Which CPU has more threads?

A: The Intel Xeon W3550 has 8 threads, while the AMD A8-9600 has 4 threads. Despite this, the AMD wins all multi-core benchmark tests.

Architecture Differences

The two processors come from entirely different architectural eras. The AMD A8-9600 uses the Excavator architecture on the Bristol Ridge codename, built on a 28 nm process at GlobalFoundries. It contains 3,100 million transistors on a 250 mm² die. The Intel Xeon W3550 uses the Nehalem architecture with the Bloomfield codename, built on a 45 nm process at Intel, with 731 million transistors on a 263 mm² die. The transistor count difference is stark, the AMD packs over four times as many transistors into a slightly smaller die, reflecting the density advantage of the newer process node.

Cache hierarchies are fundamentally different. The AMD has 320 KB of L1 cache and 2 MB of L2 cache, with no L3 cache at all. The Intel has 64 KB of L1 cache per core, 256 KB of L2 cache per core, and 8 MB of shared L3 cache. The Intel’s cache design is more generous in total capacity, yet the AMD’s newer architecture compensates with better efficiency per clock. The AMD supports DDR4 memory in dual-channel configuration with 38.4 GB/s of bandwidth, while the Intel supports DDR3 in triple-channel configuration with no listed bandwidth figure. The AMD also uses PCIe Gen 3 with 8 CPU lanes, while the Intel uses PCIe Gen 2.

The AMD integrates Radeon R7 graphics, a feature the Intel lacks entirely. The Intel supports ECC memory, which the AMD does not. The AMD’s TDP is 65 watts, less than half of the Intel’s 130 watts. The AMD was released on 2017-07-26, while the Intel was released on 2009-08-08, a gap of nearly eight years. Neither processor has an unlocked multiplier, and neither has a launch MSRP listed in the data.

Specification Differences

The two CPUs differ in almost every measurable specification. The AMD A8-9600 has 4 cores and 4 threads, while the Intel Xeon W3550 has 4 cores and 8 threads. Base clocks are close, with the AMD at 3.10 GHz and the Intel at 3.07 GHz. Boost clocks are similarly close, with the AMD at 3.40 GHz and the Intel at 3.33 GHz. The TDP is a major divergence: 65 watts for the AMD versus 130 watts for the Intel.

The sockets are incompatible: the AMD uses AMD Socket AM4, while the Intel uses Intel Socket 1366. The process nodes differ, with the AMD on 28 nm and the Intel on 45 nm. The transistor counts are 3,100 million versus 731 million, and the die sizes are 250 mm² versus 263 mm². The AMD has 320 KB of L1 cache and 2 MB of L2 cache, while the Intel has 64 KB of L1 per core and 256 KB of L2 per core. The AMD has no L3 cache, while the Intel has 8 MB of shared L3 cache.

Memory support diverges completely: the AMD uses DDR4 in dual-channel mode, while the Intel uses DDR3 in triple-channel mode. The AMD lists 38.4 GB/s of memory bandwidth, while the Intel has no bandwidth figure. ECC memory is supported on the Intel but not the AMD. PCIe versions differ, with the AMD on Gen 3 and the Intel on Gen 2. The AMD includes integrated Radeon R7 graphics, while the Intel has no integrated graphics. Market segments differ, with the AMD classified as Desktop and the Intel as Server/Workstation. Production statuses are Active versus End-of-life. Release dates are 2017-07-26 for the AMD and 2009-08-08 for the Intel. The part numbers are AD9600AGABBOXAD9600AGM44AB for the AMD and SLBEY for the Intel.