nbench (64-bit/32-bit/source) is a great free Linux benchmarking tool for basic processor comparisons on Linux. Despite its utility, nbench is not a popular tool among reviewers and tech bloggers. Therefore, here is a list of processors I have benchmarked with nbench, for myself and others to reference. In the future, rather than making new posts, I will add to this over time as I benchmark more systems.

Sorted by sum of Integer and Float scores multiplied by the number of cores. Note that on the calculated columns, a 25% increase in score is given to HyperThreading-enabled processors to account for the theoretical benefit.

CPU
Memory
Integer
Floating
(I+F)*C
(I+F)/MHz
((I+F)*C)/W
MHz
Turbo
HT
L2 Cache
TDP(W)
Cores
OS
C compiler
libc
Notes
Xeon E3-1265L42.86937.76258.867483.1450.05010.7372400330018192KB454Linux 4.4.0-109-genericgcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.1) libc-2.23.so
Core i5-650066.08646.95472.493477.7880.0377.3513200360006144 KB654Linux 4.4.0-31-genericgcc version 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.1)libc-2.23.so
Core i7-7500U64.02145.45269.81288.1550.05319.2102700350014096 KB152Linux 4.4.0-31-genericgcc version 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.1)libc-2.23.soHP 15-ay196nr
Core i5-4300U47.2638.26373.534279.49250.07418.6331900290013072 KB152Linux 5.10.0-0.bpo.3-amd64gcc version 8.3.0 (Debian 8.3.0-6)libc-2.28.soHP Elitebook Revolve 810 G2
Core i3-322045.01238.65759.466245.30750.0374.460330013072 KB552Linux 3.2.0-23-genericgcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)libc-2.15.so
Core i5-4300U43.7737.18160.49244.17750.06416.2791900290013072 KB152Linux 4.4.0-31-genericgcc version 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.1)libc-2.23.soHP Elitebook Revolve 810 G2
Core i5-321042.15536.24255.685229.81750.0466.5662500310013072 KB352Linux 3.2.0-23-genericgcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)libc-2.15.so
Pentium G324041.06439.57764.757208.6680.0343.937310003072 KB532Linux 4.4.0-116-genericgcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.1) libc-2.23.so
Celeron N293020.41915.55920.098178.2850.02423.7711830216011024 KB7.54Linux 4.4.0-47-genericgcc version 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.1) libc-2.23.so
Celeron J190022.29118.12321.677159.20.02015.9202000241001024 KB104Linux 3.13.0-24-genericgcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) libc-2.19.soAcer Aspire X 603G
Pentium G62033.26928.14644.221144.7340.0282.227260003072 KB652Linux 3.2.0-23-genericgcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)libc-2.15.so
Atom Z374017.20713.99416.753122.9880.02361.4941333186601024 KB24Linux 3.13.0-24-genericgcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)libc-2.19.soAsus Transformer T100TA
Core i3 330M25.15815.43630.686115.3050.0273.294213313072 KB352Linux 3.0.0-12-genericgcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)libc-2.13.so
Celeron 1037U24.08322.03333.762111.590.0316.564180002048 KB172Linux 4.4.0-31-genericgcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1) libc-2.23.so
Celeron 1037U22.15518.7429.83497.1480.0275.715180002048 KB172Linux 4.1.12-gentoogcc version 4.9.3 (Gentoo)glibc-2.21-r1
Core 2 Duo T590022.64217.0529.28292.6640.0212.648220002048 KB352Linux 3.0.0-12-genericgcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)libc-2.13.so
Celeron J180024.34918.55723.97585.0640.0188.506240001024 KB102Linux 4.4.0-47-genericgcc version 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.1) libc-2.23.soECS BAT-I(1.2)/J1800
Qualcomm MSM893910.910.5669.93582.0040.0141459004gcc 4.9.0 (ARM64)Andrioid BionicASUS Zenfone 2 (*The CPU is advertised as 8-core, but only 4 can be active at a time)
MediaTek MT6589M6.3127.4436.97357.6640.012120004Linux 3.4.5gcc 4.6.0 (-march=armv7-a)Android BionicAlcatel/T-Mobile Fierce
Opteron 25017.21423.86523.82247.6870.0200.536240001024 KB891Linux 3.11.0-12-genericgcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8)libc-2.17.so
Athlon 64 3200+14.0213.721.0134.710.0170.390200001024 KB891Linux 2.6.28-hardened-r9x86_64-pc-linux-gnu-gcc
AMD C-60*5.966.3819.96132.6840.0163.63210000512 KB92Linux 3.0.0-12-genericgcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)libc-2.13.so* Turbo-Boost not active
Pentium M9.90611.79814.5126.3080.0161.074160002048 KB24.51Linux 3.11.0-12-genericgcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8)libc-2.17.so
Celeron (Northwood)11.9828.46516.03824.5030.0090.39126000128 KB62.61Linux 3.10.35-std420-i586gcc version 4.4.7 (Gentoo 4.4.7 p1.2, pie-0.4.5)libc-2.15.so
Atom N2809.8518.4667.55420.0250.0128.01016671512 KB2.51Linux 3.0.0-12-genericgcc version 4.6.1 (Ubuntu 4.6.1-9ubuntu3)libc-2.13.so
Atom N2808.037.917.4119.150.0117.66016671512 KB2.51Linux 2.6.31-14-genericgcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu8)libc-2.10.1.so
Athlon (Thunderbird)7.3848.00611.78519.7910.0180.33011000256 KB601Linux 2.6.34-gentoo-r1gcc version 4.4.3 (Gentoo 4.4.3-r2 p1.2)libc-2.11.2.so
ARM Cortex A83.4575.5371.7057.2420.006120001Linux 3.0.8gcc 4.6.0Andrioid Bionic
ARM v7 Rev2 v712.3933.2910.6273.9180.00580001Linux 2.6.29-omap1gcc 4.6.0 (-march=armv5te)Andrioid BionicRooted B&N Nook Simple Touch 1.2.1
ARM v6 Rev5 v611.0461.7640.2281.9920.00360001Linux 2.6.35.7-perfgcc 4.6.0 (-march=armv5te)Andrioid BionicT-Mobile Prism

These stats are as reported by nbench. Errors such as misreported 0 L2 cache on ARM chips are copied over, verbatim. 

You can check out a more comprehensive list of results from Mr. Uwe F. Mayer’s website, who hosts the source code of his Linux port of nbench.