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CPU Single Thread Rating Name pts Date Intel Core2 Duo E7600 @ 3.06GHz 1,270 Q2 2009 Intel Core Solo T1350

CPU Single Thread Rating Name pts Date Intel Core2 Duo E7600 @ 3.06GHz 1,270 Q2 2009 Intel Core Solo T1350 @ 1.86GHz 413 Q1 2009 Intel Core Solo U1300 @ 1.06GHz 340 Q3 2009 Intel Atom D425 @ 1.80GHz 320 Q1 2011 These Atoms were quite gutted to have a low die size and low TDP, and the first things what were cut are cache and branch prediction. You can see how D425 from 2011 is on the same level as two year earlier and a almost a half GHz slower U1300. > In the Bonnell microarchitecture, internal micro-ops can contain both a memory load and a memory store in connection with an ALU operation, thus being more similar to the x86 level and more powerful than the micro-ops used in previous designs.[3] This enables relatively good performance with only two integer ALUs, and without any instruction reordering, speculative execution or register renaming. A side effect of having no speculative execution is invulnerability against Meltdown and Spectre. https://www.cpubenchmark.net/compare/948vs579vs593vs609/Intel-Core2-Duo-E7600-vs-Intel-Solo-T1350-vs-Intel-Solo-U1300-vs-Intel-Atom-D425 https://www.cpubenchmark.net/compare/948vs579vs593vs609/Inte... https://en.wikipedia.org/wiki/Bonnell_(microarchitecture) https://en.wikipedia.org/wiki/Bonnell_(microarchitecture)

bsoft16385 4y ago
Bonnell has a branch predictor: https://en.wikichip.org/wiki/intel/microarchitectures/bonnell#Branch_predictor https://en.wikichip.org/wiki/intel/microarchitectures/bonnel... In-order execution does not mean that there is no branch prediction, it just means that the number of instructions speculated is much smaller.
- justsomehnguy 4y ago
  Yes, it would be quite strange not to add it at all, especially since it was available since Pentium days. No, it is not comparable with a 'proper' CPUs because it was still gutted hard. IMMSMV all that stuff consumes a lot of die space, so it makes sense to throw it out if the performance is enough.

bsoft16385 4y ago

Bonnell has a branch predictor: https://en.wikichip.org/wiki/intel/microarchitectures/bonnell#Branch_predictor https://en.wikichip.org/wiki/intel/microarchitectures/bonnel... In-order execution does not mean that there is no branch prediction, it just means that the number of instructions speculated is much smaller.

justsomehnguy 4y ago
Yes, it would be quite strange not to add it at all, especially since it was available since Pentium days. No, it is not comparable with a 'proper' CPUs because it was still gutted hard. IMMSMV all that stuff consumes a lot of die space, so it makes sense to throw it out if the performance is enough.