Xeon 6521P: specs and benchmarks
Aggregate performance score
Xeon 6521P provides good benchmark performance at 36.74% of a leader's which is a 96-core Ryzen Threadripper PRO 9995WX.
Contents
Summary
Intel started Xeon 6521P sales 24 February 2025 at a recommended price of $1,250. This is a Granite Rapids architecture desktop processor primarily aimed at professional systems. It has 24 cores and 48 threads, and is based on Intel 3 manufacturing technology, with a maximum frequency of 4100 MHz and a locked multiplier.
Compatibility-wise, this is FCLGA4710 processor with a TDP of 225 Watt and a maximum temperature of 82 °C. It supports DDR5(6400MT/s) memory.
Primary details
Xeon 6521P processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 105 | |
| Place by popularity | not in top-100 | |
| Cost-effectiveness evaluation | 34.02 | |
| Market segment | Server | |
| Power efficiency | 17.50 | of 100.00 (Ryzen Z1 Extreme) |
| Designer | Intel | |
| Manufacturer | Intel | |
| Architecture codename | Granite Rapids (2024−2025) | |
| Release date | 24 February 2025 (less than a year ago) | |
| Launch price (MSRP) | $1,250 | of 19,000 (Xeon 6788P) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 24 (Tetracosa-Core) | |
| Threads | 48 | |
| Base clock speed | 2.6 GHz | of 4.7 GHz (Ryzen Threadripper PRO 9945WX) |
| Boost clock speed | 4.1 GHz | of 6.2 GHz (Core i9-14900KS) |
| L1 cache | 112 KB (per core) | of 80 KB (EPYC 9965) |
| L2 cache | 2 MB (per core) | of 2 MB (Xeon 6980P) |
| L3 cache | 144 MB (shared) | of 1152 MB (EPYC 9684X) |
| Chip lithography | Intel 3 nm | of 3 nm (EPYC 9965) |
| Die size | 598 mm2 | |
| Maximum case temperature (TCase) | 82 °C | of 105 °C (Core i7-5950HQ) |
| 64 bit support | + |
Compatibility
Information on Xeon 6521P compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | of 8 (Xeon Platinum 8454H) |
| Socket | FCLGA4710 | |
| Power consumption (TDP) | 225 Watt | of 512 KB + 4 MB (Core i3-8121U) |
Technologies and extensions
Technological capabilities and additional instructions supported by Xeon 6521P. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512, Intel® AMX | |
| AES-NI | + | |
| AVX | + | |
| Enhanced SpeedStep (EIST) | + | |
| Speed Shift | + | |
| Turbo Boost Technology | 2.0 | |
| Hyper-Threading Technology | + | |
| TSX | + | |
| Deep Learning Boost | + |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | |
| EDB | + | |
| SGX | + | |
| OS Guard | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| VT-d | + | |
| VT-x | + | |
| EPT | + |
Memory specs
Types, maximum amount and channel number of RAM supported by Xeon 6521P's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR5(6400MT/s) | |
| Maximum memory size | 4 TB | of 6 TiB (EPYC 9654) |
| Max memory channels | 8 | of 12 (Xeon Platinum 9221) |
| ECC memory support | + |
Graphics specifications
General parameters of a GPU integrated into Xeon 6521P.
| Integrated graphics card | N/A |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 5.0 | |
| PCI Express lanes | 136 | of 144 (Threadripper PRO 7955WX) |
Benchmark performance
Single-core and multi-core benchmark results of Xeon 6521P. Overall benchmark performance is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.
Send your test results of Xeon 6521P.
AMD equivalent
According to our data, the closest AMD alternative to Xeon 6521P is Xeon Platinum 8454H, which is slower by 4% and lower by 10 positions in our ranking.
Here are some closest AMD rivals to Xeon 6521P:
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
Recommended GPUs
People consider these graphics cards to be good for Xeon 6521P, according to our PC configuration statistics.
These are the fastest graphics cards for Xeon 6521P in our user configuration statistics. There is a total of 1 configurations using Xeon 6521P in our database.
