x86-64 level
x86-64-v4
Vendor
Intel
First products
2019
Products
10th generation Core mobile processors (Ice Lake)
Segments
mobile
GCC target
-march=icelake-client
Optimization
Optimizing code for Ice Lake to Rocket Lake

Intel's optimization manual counts CLWB among the instructions that Ice Lake client adds, and says support may vary by product. GCC's -march=icelake-client, LLVM's icelake-client and XED's Ice Lake chip leave it out, as does the SDM's table of when each extension first appeared, so the CLWB page does not list this processor.

Product lines

The product lines built on Ice Lake (client), with the market segment the vendor sells each in and the sockets or soldered (BGA) packages its processors come in. Each socket links to the vendor page that states it.
Product lineSegmentSocketSource
10th generation CoremobileBGA1526, BGA1377, BGA1344intel.com
PentiummobileBGA1526intel.com

Feature checklist

Features required by each x86-64 level and whether Ice Lake (client) has them. OSFXSR and OSXSAVE are set by the operating system; the table checks the hardware features they depend on.
FeatureIce Lake (client)Enumerated byLinux flag
x86-64-v1
CMOVYesCPUID.01H:EDX[15]cmov
CX8YesCPUID.01H:EDX[8]cx8
FPUYesCPUID.01H:EDX[0]fpu
FXSRYesCPUID.01H:EDX[24]fxsr
MMXYesCPUID.01H:EDX[23]mmx
OSFXSR via FXSRYesCPUID.01H:EDX[24]fxsr
SCEYesCPUID.80000001H:EDX[11]syscall
SSEYesCPUID.01H:EDX[25]sse
SSE2YesCPUID.01H:EDX[26]sse2
x86-64-v2
CMPXCHG16BYesCPUID.01H:ECX[13]cx16
LAHF-SAHFYesCPUID.80000001H:ECX[0]lahf_lm
POPCNTYesCPUID.01H:ECX[23]popcnt
SSE3YesCPUID.01H:ECX[0]pni
SSE4.1YesCPUID.01H:ECX[19]sse4_1
SSE4.2YesCPUID.01H:ECX[20]sse4_2
SSSE3YesCPUID.01H:ECX[9]ssse3
x86-64-v3
AVXYesCPUID.01H:ECX[28]avx
AVX2YesCPUID.(EAX=07H,ECX=0):EBX[5]avx2
BMI1YesCPUID.(EAX=07H,ECX=0):EBX[3]bmi1
BMI2YesCPUID.(EAX=07H,ECX=0):EBX[8]bmi2
F16CYesCPUID.01H:ECX[29]f16c
FMAYesCPUID.01H:ECX[12]fma
LZCNTYesCPUID.80000001H:ECX[5]abm
MOVBEYesCPUID.01H:ECX[22]movbe
OSXSAVE via XSAVEYesCPUID.01H:ECX[26]xsave
x86-64-v4
AVX512FYesCPUID.(EAX=07H,ECX=0):EBX[16]avx512f
AVX512BWYesCPUID.(EAX=07H,ECX=0):EBX[30]avx512bw
AVX512CDYesCPUID.(EAX=07H,ECX=0):EBX[28]avx512cd
AVX512DQYesCPUID.(EAX=07H,ECX=0):EBX[17]avx512dq
AVX512VLYesCPUID.(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 Ice Lake (client), in all of its models or in some of them.

Sources

  1. GCC -march=icelake-client feature set (PTA_ICELAKE_CLIENT)
  2. Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 4, 335592-093, Table 2-1: Model 06_7EH: 10th generation Core processors, Ice Lake.
  3. Intel ARK: Products formerly Ice Lake: Launch dates; the earliest is Q3'19 (Core i7-1065G7).
  4. Intel 64 and IA-32 Architectures Optimization Reference Manual, Volume 1, 248966-051, Sections 2.5 and 2.5.1.5: Lists CLWB among the new instructions of Ice Lake client, with support that may depend on the product.
  5. Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 1, 253665-093, Table 5-2: The CLWB row names Xeon Scalable, Tremont and Tiger Lake processors, not Ice Lake client.
  6. LLVM llvm/lib/Target/X86/X86.td: the icelake-client features, without CLWB, which icelake-server adds