x86-64.net

Intel Atom and E-cores

Bonnell

Intel Bonnell (2008) supports x86-64-v1.

x86-64 level
x86-64-v1
Vendor
Intel
First products
2008
Products
First-generation Atom (Silverthorne, Diamondville, Pineview)
Segments
desktopmobile
GCC target
-march=bonnell

Some Bonnell-based Atom models, such as the Z500 series and the N270, do not implement Intel 64 at all.

Product lines

The product lines built on Bonnell, 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
Atom Z500 (Silverthorne)mobileBGA441intel.com
Atom N270 (Diamondville)mobileBGA437intel.com
Atom N450 (Pineview)mobileBGA559intel.com
Atom D410 and D510 (Pineview)desktopBGA559intel.com

Why not x86-64-v2?

Bonnell lacks POPCNT, SSE4.1 and SSE4.2, all of which x86-64-v2 requires.

Feature checklist

Features required by each x86-64 level and whether Bonnell has them. OSFXSR and OSXSAVE are set by the operating system; the table checks the hardware features they depend on.
FeatureBonnellEnumerated 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
POPCNTNoCPUID.01H:ECX[23]popcnt
SSE3YesCPUID.01H:ECX[0]pni
SSE4.1NoCPUID.01H:ECX[19]sse4_1
SSE4.2NoCPUID.01H:ECX[20]sse4_2
SSSE3YesCPUID.01H:ECX[9]ssse3
x86-64-v3
AVXNoCPUID.01H:ECX[28]avx
AVX2NoCPUID.(EAX=07H,ECX=0):EBX[5]avx2
BMI1NoCPUID.(EAX=07H,ECX=0):EBX[3]bmi1
BMI2NoCPUID.(EAX=07H,ECX=0):EBX[8]bmi2
F16CNoCPUID.01H:ECX[29]f16c
FMANoCPUID.01H:ECX[12]fma
LZCNTNoCPUID.80000001H:ECX[5]abm
MOVBEYesCPUID.01H:ECX[22]movbe
OSXSAVE via XSAVENoCPUID.01H:ECX[26]xsave
x86-64-v4
AVX512FNoCPUID.(EAX=07H,ECX=0):EBX[16]avx512f
AVX512BWNoCPUID.(EAX=07H,ECX=0):EBX[30]avx512bw
AVX512CDNoCPUID.(EAX=07H,ECX=0):EBX[28]avx512cd
AVX512DQNoCPUID.(EAX=07H,ECX=0):EBX[17]avx512dq
AVX512VLNoCPUID.(EAX=07H,ECX=0):EBX[31]avx512vl

Sources

  1. GCC -march=bonnell feature set (PTA_BONNELL)
  2. Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 1, 253665-093, Sections 1.1 and 2.1.14: The first generation of Atom processors (2008); the Atom Z5xx series supports IA-32 only.
  3. Intel Atom Processor N270 Datasheet, Section 1.1: Lists support for the 32-bit IA-32 architecture, not Intel 64.
  4. Intel Microprocessor Quick Reference Guide, Intel Atom processor: The Atom Z500 to Z540 were introduced in April 2008.
  5. Linux 7.3 arch/x86/include/asm/intel-family.h: INTEL_ATOM_BONNELL (Diamondville, Pineview), INTEL_ATOM_BONNELL_MID (Silverthorne, Lincroft)