Intel Xeon 6740P vs Intel Xeon 6745P Comparison
Intel Xeon 6740P
Xeon 6745P
PERFORMANCE BENCHMARKS
Analysis: Intel Xeon 6740P vs Intel Xeon 6745P
The Verdict
The Intel Xeon 6740P and Intel Xeon 6745P are both Granite Rapids server processors on the same Socket 4710 platform, but they aim at different workloads. The 6740P is the clear multi-threaded throughput champion, winning 14 of 16 head-to-head benchmark comparisons. The 6745P takes only two wins, both in single-threaded PassMark tests, where it leads by 13.8%. If your application scales across many cores, the 6740P is the obvious choice. If you need maximum single-thread responsiveness and can tolerate fewer cores, the 6745P is the pick. The 6740P carries a launch MSRP of $4650, while the 6745P has a launch MSRP of $5250. The data shows the 6740P delivers higher aggregate performance at a lower launch MSRP, making it the stronger all-around option for most server deployments.
Architecture Differences
Both processors share the same Granite Rapids architecture, codename Granite Rapids, and belong to the Xeon 6 (Granite Rapids-SP) generation. Both are built on Intel's 5 nm process and use a dual-die design with a total die size of 2x 598 mm². The socket is identical: Intel Socket 4710. Neither chip has integrated graphics, and both target the Server/Workstation market segment.
The core counts differ significantly. The 6740P has 48 cores and 96 threads, while the 6745P has 32 cores and 64 threads. That is a 50% core advantage for the 6740P. Clock speeds tell the opposite story. The 6745P runs a base clock of 3.10 GHz and boosts to 4.30 GHz, while the 6740P sits at 2.10 GHz base and 3.80 GHz boost. The 6745P has higher clocks on both fronts, which explains its single-thread advantage.
Cache configurations also differ. Both chips have 112 KB of L1 per core and 2 MB of L2 per core. The L3 cache is where they split: the 6740P has 288 MB shared, while the 6745P has 336 MB shared. That means the lower-core-count chip carries 48 MB more L3, likely to feed its higher clocked cores. Memory support is identical: DDR5, eight-channel, 409.6 GB/s bandwidth, with ECC enabled. PCIe is also the same: Gen 5 with 88 lanes (CPU only). Both are unlocked? No, the multiplier is locked on both parts. Production status is Active for both, and both released on the same date, 2025-02-23.
Where Each One Wins
The 6740P dominates nearly every multi-threaded and data-intensive workload in the database. In Cinebench tests, it wins all five recorded runs: R15 multi-core (7544 vs 7214), R15 single-core (1065 vs 1018), R20 multi-core (31437 vs 30062), R20 single-core (4438 vs 4244), and R23 multi-core (74851 vs 71578). Each of those wins is by 4.6%, a consistent margin that reflects the core count advantage.
The PassMark suite shows the 6740P winning in data compression by 13.6%, data encryption by 23%, extended instructions by 8%, find prime numbers by 20.7%, floating point math by 10.7%, integer math by 15.3%, multithread by 4.6%, physics by a massive 58%, and random string sorting by 31.1%. These are not marginal differences; they are substantial leads in workloads that benefit from parallel execution.
The 6745P wins only the PassMark single-thread test, scoring 3450 against 2975, a 13.8% advantage. It also wins the duplicate singlethread test by the same margin. This makes the 6745P the better fit for latency-sensitive, lightly threaded tasks such as database request handling, single-threaded scripting, or legacy applications that resist parallelization. For anything that can use more than a few cores, the 6740P is the stronger performer.
FAQ
Q: Which processor has more cores?
A: The Intel Xeon 6740P has 48 cores and 96 threads, while the Intel Xeon 6745P has 32 cores and 64 threads.
Q: Which processor has the higher clock speed?
A: The Intel Xeon 6745P has a base clock of 3.10 GHz and a boost clock of 4.30 GHz. The Intel Xeon 6740P has a base clock of 2.10 GHz and a boost clock of 3.80 GHz.
Q: How much L3 cache does each processor have?
A: The Intel Xeon 6740P has 288 MB of shared L3 cache. The Intel Xeon 6745P has 336 MB of shared L3 cache.
Q: Do both processors support the same memory configuration?
A: Yes, both support DDR5 memory with an eight-channel bus and 409.6 GB/s bandwidth, and both have ECC memory enabled.
Q: Which processor wins in single-threaded performance?
A: The Intel Xeon 6745P wins the PassMark single-thread test with a score of 3450, compared to 2975 for the Intel Xeon 6740P, a 13.8% lead.
Q: Which processor wins in multi-threaded performance?
A: The Intel Xeon 6740P wins every multi-threaded benchmark in the database. For example, in Cinebench R23 multi-core it scores 74851 versus 71578 for the 6745P, and in PassMark multithread it scores 88061 versus 84210.
Head-to-Head Benchmarks
The head-to-head results paint a clear picture. The 6740P wins 14 benchmarks, the 6745P wins 2. The biggest single win for the 6740P is in PassMark physics, where it scores 9705 against 6144, a 58% lead. That is an enormous gap and suggests the 6740P's core count is especially valuable in physics simulation workloads. The next largest lead is in random string sorting, where the 6740P scores 175015 versus 133528, a 31.1% advantage. Data encryption shows a 23% lead (82028 vs 66665), and find prime numbers shows a 20.7% lead (822 vs 681).
In integer math, the 6740P scores 388500 versus 336926, a 15.3% lead. Floating point math shows a 10.7% lead (296102 vs 267438). Data compression is 13.6% ahead (1537129 vs 1352801). Extended instructions are 8% ahead (116992 vs 108326). The multithread PassMark test shows a narrower 4.6% lead (88061 vs 84210), matching the Cinebench deltas. All five Cinebench tests, both multi-core and single-core, show exactly 4.6% wins for the 6740P. Interestingly, even in Cinebench single-core tests, the 6740P wins despite the 6745P's higher clock speeds. That is a notable result, since the PassMark single-thread test goes the other way.
The 6745P's only wins are in PassMark single-thread and its duplicate singlethread test, both scoring 3450 against 2975, a 13.8% margin. This is the one area where the 6745P's 4.30 GHz boost clock and 336 MB L3 cache deliver a clear advantage. But it is a narrow slice of the overall performance picture. Across the full suite, the 6740P holds a commanding lead.
Specification Differences
The two processors differ in several key specifications. Core count: 48 for the 6740P, 32 for the 6745P. Thread count: 96 versus 64. Base clock: 2.10 GHz versus 3.10 GHz. Boost clock: 3.80 GHz versus 4.30 GHz. L3 cache: 288 MB versus 336 MB. TDP: 270 for the 6740P, 300 for the 6745P. Launch MSRP: $4650 for the 6740P, $5250 for the 6745P. Part numbers also differ: SRV5R for the 6740P, SRWPAQ7L9 for the 6745P.
Everything else is identical: both use Granite Rapids architecture, 5 nm process, 2x 598 mm² die size, 112 KB L1 per core, 2 MB L2 per core, DDR5 memory with eight-channel bus, 409.6 GB/s memory bandwidth, ECC support, Gen 5 PCIe with 88 lanes, no integrated graphics, Server/Workstation market segment, Active production status, same release date, and locked multipliers. The socket is the same, Intel Socket 4710, so either chip can drop into the same platform. The practical takeaway: choose the 6740P for core-heavy parallel workloads and the 6745P for single-threaded speed, while noting that the 6740P also wins in Cinebench single-core tests despite lower clocks.