AMD Ryzen 9 PRO 9965 vs Intel Xeon 6740E Comparison

The Intel Xeon 6740E and AMD Ryzen 9 PRO 9965 are both active server/workstation processors, but they target completely different workloads. The benchmark data shows a clear split: the Xeon wins decisively in almost every multi-threaded test, while the Ryzen dominates in single-thread performance. This is a classic high-core-count vs high-clock-speed comparison, and the recorded measurements make the trade-offs explicit.

Head-to-Head Benchmarks

The Intel Xeon 6740E wins 9 of the 11 recorded head-to-head tests, and most of those wins are not close. The largest margin is in data encryption, where the Xeon scores 137106 against the Ryzen's 44920, a 205.2% advantage. That is more than triple the throughput, which matters heavily for storage encryption, database workloads, and any security-heavy processing.

Physics simulation shows a 133.7% lead for Intel, with scores of 7608 versus 3256. Random string sorting follows at 132.5% (220684 vs 94915), which reflects the Xeon's ability to brute-force sorting and indexing tasks. Data compression is another massive win: 1786845 vs 908293, a 96.7% gap. Floating point math also nearly doubles the Ryzen's output: 309333 vs 160746, a 92.4% lead.

Integer math tells the same story. The Xeon scores 457614 against 243280, an 88.1% advantage. Even the more modest wins matter. The Xeon leads in find prime numbers by 44.5% (526 vs 364), in extended instructions by 10.9% (78968 vs 71210), and in the overall multithread score by 14.3% (76167 vs 66655). The multithread gap is smaller than the others, suggesting the Ryzen's high clock speeds partially compensate for its lower core count, but it still loses.

The AMD Ryzen 9 PRO 9965 wins exactly two tests: single thread and singlethread, both with identical scores of 4682 against the Xeon's 1997. That is a 57.3% advantage for AMD, and it is the only category where the Ryzen is competitive. This single-thread dominance is the key differentiator for latency-sensitive workflows.

Architecture Differences

The two processors are built on opposite design philosophies. The Intel Xeon 6740E uses the Sierra Forest architecture on a 5 nm node from Intel's own foundry. It packs 96 cores and 96 threads, meaning no hyperthreading, with a base clock of 2.40 GHz and a boost of 3.20 GHz. The die is 578 mm², which is large because it is designed for throughput, not clock speed.

The AMD Ryzen 9 PRO 9965 is a Granite Ridge part, using Zen 5 cores on a 4 nm TSMC process. It has 16 cores and 32 threads, with a base clock of 4.30 GHz and a boost of 5.50 GHz. The die is split into two chiplets, each 70.6 mm², totaling about 141 mm², with 16,630 million transistors. The process advantage (4 nm vs 5 nm) and the much higher clocks explain why it wins single-thread tests.

Cache configurations also differ fundamentally. The Xeon has 96 KB of L1 per core, 4 MB of L2 per module, and 96 MB of shared L3. The Ryzen has 80 KB of L1 per core, 1 MB of L2 per core, and 64 MB of L3. Neither has 3D V-Cache. The Xeon's larger shared L3 helps with multi-threaded scaling, while the Ryzen's per-core L2 is smaller but its higher clocks compensate in latency-sensitive tasks.

Memory architecture is another major split. The Xeon supports eight-channel DDR5 with 409.6 GB/s of bandwidth, while the Ryzen uses dual-channel DDR5 with 89.6 GB/s. That is a 4.5x bandwidth advantage for Intel, which directly feeds its multi-core dominance. Both support ECC memory. PCIe also differs: the Xeon provides 88 Gen 5 lanes from the CPU, the Ryzen provides 24 Gen 5 lanes. The Xeon has no integrated graphics, while the Ryzen includes Radeon Graphics.

Where Each One Wins

The Intel Xeon 6740E is the obvious choice for throughput-bound, parallel workloads. The data shows it wins in data compression, encryption, floating point math, integer math, physics, prime number finding, and random string sorting. Any workload that can use many cores will see a substantial benefit. The 96.7% lead in compression and the 205.2% lead in encryption are particularly strong indicators for file servers, database compression, and secure data processing. The multithread score, while still a win at 14.3%, is the closest margin, meaning the Ryzen is not entirely outclassed in mixed workloads.

The AMD Ryzen 9 PRO 9965 wins only in single-threaded tests. Its 57.3% lead in single thread score is massive. This matters for software that cannot parallelize well, such as legacy applications, certain simulation solvers, or front-end web services with low latency requirements. The Ryzen's 5.50 GHz boost clock and 16 cores are enough for moderate multi-threading, but the Xeon's 96 cores simply out-scale it.

The practical split is clear: use the Xeon for batch processing, rendering, database analytics, or any workload that saturates many cores. Use the Ryzen for interactive workloads, single-threaded code paths, or systems where per-thread speed matters more than aggregate throughput.

Specification Differences

The two CPUs differ in nearly every measurable specification. The core count is the biggest gap: 96 vs 16, a 6x difference. Threads follow the same pattern: 96 vs 32, a 3x difference. Clock speeds are inverted: the Xeon runs at 2.40 GHz base and 3.20 GHz boost, the Ryzen at 4.30 GHz base and 5.50 GHz boost. The Ryzen is 79% higher in base clock and 72% higher in boost clock.

Process node differs: Intel uses 5 nm, AMD uses 4 nm from TSMC. Die size is also reversed: the Xeon is 578 mm², the Ryzen is two 70.6 mm² chiplets. Transistor count is only listed for the Ryzen at 16,630 million. TDP is another major split: the Xeon draws 250 W, the Ryzen 170 W, a 47% difference. Socket and platform are completely different: the Xeon uses Intel Socket 4710, the Ryzen uses AMD Socket AM5. Memory channels are eight versus two, with bandwidth at 409.6 GB/s versus 89.6 GB/s. PCIe lanes are 88 versus 24, both Gen 5. The Ryzen has integrated Radeon Graphics, the Xeon has none.

The release dates also differ. The Xeon launched on 2024-06-02, while the Ryzen is scheduled for 2026-06-29. The Xeon has a launch MSRP of $5265, which is stated only for reference; the Ryzen has no listed launch MSRP. Both are production active, and neither has an unlocked multiplier.

FAQ

Q: Which CPU is faster in single-threaded performance?

A: The AMD Ryzen 9 PRO 9965 wins by a wide margin. Its single-thread score is 4682 versus the Intel Xeon 6740E's 1997, a 57.3% advantage. This is the only benchmark category where AMD wins.

Q: How much better is the Intel Xeon in data encryption?

A: The Xeon scores 137106 in data encryption, while the Ryzen scores 44920. That is a 205.2% lead for Intel, meaning the Xeon processes encryption more than three times faster.

Q: Does the AMD Ryzen have a chance in any multi-threaded test?

A: The closest multi-threaded result is the passmark multithread score, where the Xeon leads by 14.3% (76167 vs 66655). The Ryzen loses in every other multi-threaded test, with margins ranging from 10.9% to 205.2%.

Q: What are the memory bandwidth differences?

A: The Xeon supports eight-channel DDR5 with 409.6 GB/s of bandwidth. The Ryzen uses dual-channel DDR5 with 89.6 GB/s. That is a 4.5x difference in memory bandwidth, which directly affects multi-core scaling.

Q: Which CPU has more PCIe lanes?

A: The Intel Xeon provides 88 Gen 5 lanes from the CPU, while the AMD Ryzen provides 24 Gen 5 lanes. The Xeon offers more than three times the lane count for expansion cards and NVMe drives.

Q: Are both CPUs unlocked for overclocking?

A: No. Neither the Intel Xeon 6740E nor the AMD Ryzen 9 PRO 9965 has an unlocked multiplier. Both are locked processors aimed at server/workstation stability.

The Verdict

The data points to two distinct buyers. The Intel Xeon 6740E is for anyone who needs maximum parallel throughput. It wins 9 of 11 head-to-head tests, with decisive margins in encryption, physics, compression, and math. Its 96 cores, eight-channel memory, and 88 PCIe lanes make it a server-class part that belongs in a rack for heavy batch processing. The 96 MB L3 cache and 409.6 GB/s bandwidth are the infrastructure to feed those cores. If your workload is database analytics, rendering, or data compression, the Xeon is the clear choice, despite its 250 W TDP and $5265 launch MSRP.

The AMD Ryzen 9 PRO 9965 is for single-threaded performance and lower platform complexity. It wins the single-thread test by 57.3%, which is the only category it takes. Its 5.50 GHz boost clock and 4 nm process give it a latency advantage that cannot be matched by the Xeon's lower clock speeds. It also uses dual-channel memory and 24 PCIe lanes, which is simpler and cheaper to build around. For interactive workloads, legacy software, or any application that is bound by per-core speed, the Ryzen is the right pick.

There is no universal winner. The Xeon is a throughput engine. The Ryzen is a responsiveness engine. If the benchmark list matters to you, count the wins: the Xeon takes 9, the Ryzen takes 2. But if your application is single-threaded, those 9 wins are irrelevant. Choose based on your workload's parallelism, not on the total score. The recorded data shows that a 96-core part and a 16-core part can both be correct answers, depending on the task.