Intel Xeon (server)
Cascade Lake
Intel Cascade Lake (2019) supports x86-64-v4.
- x86-64 level
- x86-64-v4
- Vendor
- Intel
- First products
- 2019
- Products
- 2nd generation Xeon Scalable; Core X-series 10000
- Segments
- GCC target
-march=cascadelake- Optimization
- Optimizing code for Skylake to Cooper Lake
Product lines
Feature checklist
| Feature | Cascade Lake | Enumerated by | Linux flag |
|---|---|---|---|
| x86-64-v1 | |||
| CMOV | Yes | CPUID.01H:EDX[15] | cmov |
| CX8 | Yes | CPUID.01H:EDX[8] | cx8 |
| FPU | Yes | CPUID.01H:EDX[0] | fpu |
| FXSR | Yes | CPUID.01H:EDX[24] | fxsr |
| MMX | Yes | CPUID.01H:EDX[23] | mmx |
| OSFXSR via FXSR | Yes | CPUID.01H:EDX[24] | fxsr |
| SCE | Yes | CPUID.80000001H:EDX[11] | syscall |
| SSE | Yes | CPUID.01H:EDX[25] | sse |
| SSE2 | Yes | CPUID.01H:EDX[26] | sse2 |
| x86-64-v2 | |||
| CMPXCHG16B | Yes | CPUID.01H:ECX[13] | cx16 |
| LAHF-SAHF | Yes | CPUID.80000001H:ECX[0] | lahf_lm |
| POPCNT | Yes | CPUID.01H:ECX[23] | popcnt |
| SSE3 | Yes | CPUID.01H:ECX[0] | pni |
| SSE4.1 | Yes | CPUID.01H:ECX[19] | sse4_1 |
| SSE4.2 | Yes | CPUID.01H:ECX[20] | sse4_2 |
| SSSE3 | Yes | CPUID.01H:ECX[9] | ssse3 |
| x86-64-v3 | |||
| AVX | Yes | CPUID.01H:ECX[28] | avx |
| AVX2 | Yes | CPUID.(EAX=07H,ECX=0):EBX[5] | avx2 |
| BMI1 | Yes | CPUID.(EAX=07H,ECX=0):EBX[3] | bmi1 |
| BMI2 | Yes | CPUID.(EAX=07H,ECX=0):EBX[8] | bmi2 |
| F16C | Yes | CPUID.01H:ECX[29] | f16c |
| FMA | Yes | CPUID.01H:ECX[12] | fma |
| LZCNT | Yes | CPUID.80000001H:ECX[5] | abm |
| MOVBE | Yes | CPUID.01H:ECX[22] | movbe |
| OSXSAVE via XSAVE | Yes | CPUID.01H:ECX[26] | xsave |
| x86-64-v4 | |||
| AVX512F | Yes | CPUID.(EAX=07H,ECX=0):EBX[16] | avx512f |
| AVX512BW | Yes | CPUID.(EAX=07H,ECX=0):EBX[30] | avx512bw |
| AVX512CD | Yes | CPUID.(EAX=07H,ECX=0):EBX[28] | avx512cd |
| AVX512DQ | Yes | CPUID.(EAX=07H,ECX=0):EBX[17] | avx512dq |
| AVX512VL | Yes | CPUID.(EAX=07H,ECX=0):EBX[31] | avx512vl |
Other extensions
Notable extensions outside the x86-64 levels. Vendors sometimes disable these on individual models. Linked names lead to the extension's instructions.
Known vulnerabilities
The CVEs that the sources of the vulnerability list name as affecting Cascade Lake, in all of its models or in some of them.
- CVE-2025-40300 VMSCAPE
- CVE-2024-28956 Indirect Target Selection Some models
- CVE-2024-24853 Intel BIOS, UEFI and SMM: SMI Transfer Monitor transition order
- CVE-2022-40982 Gather Data Sampling
- CVE-2022-29901 Retbleed: Return Stack Buffer Underflow
- CVE-2022-21166 Processor MMIO Stale Data: Device Register Partial Write
- CVE-2021-0127 Intel processor errata: Breakpoint control flow Some models
- CVE-2019-1125 Spectre variant 1: Spectre v1 swapgs
- CVE-2017-5753 Spectre variant 1: Bounds Check Bypass
- CVE-2017-5715 Spectre variant 2: Branch Target Injection
Other Intel Xeon (server) microarchitectures
- Skylake-SP 2017 v4
- Cascade Lake 2019 v4
- Cooper Lake 2020 v4
- Ice Lake (server) 2021 v4
- Emerald Rapids 2023 v4
- Sapphire Rapids 2023 v4
- Granite Rapids 2024 v4
- Sierra Forest 2024 v3
- Clearwater Forest 2026 v3
- Diamond Rapids announced v4
Sources
- GCC -march=cascadelake feature set (PTA_CASCADELAKE)
- Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 4, 335592-093, Table 2-1: Model 06_55H: 2nd generation Xeon Scalable processors, Cascade Lake.
- Intel ARK: Products formerly Cascade Lake: Launch dates; the earliest is Q2'19 (Xeon Gold 5218N).