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
MHz
Turbo
HT
L2 Cache
Cores
OS
C compiler
libc
Notes
Core i5-1140074.36272.794156.1411717.00.11026004400112288 KB6Linux 6.1.0-20-amd64gcc version 12.2.0 (Debian 12.2.0-14)libc.so.6
Core i5-1140071.57170.058127.1281478.90.09526004400112288 KB6Linux 5.10.0-0.bpo.7-amd64gcc version 8.3.0 (Debian 8.3.0-6) libc-2.28.soIf I enable AVX2/AVX512 in the BIOS, the MEM score drops to ~43 and the Float score rises to ~136
Xeon E5-2640 v233.64532.42866.458988.90.06220002500120480 KB8Linux 6.1.0-21-amd64gcc version 12.2.0 (Debian 12.2.0-14) libc.so.6
Core i7-7700T73.28346.200124.367852.80.0742900380018192 KB4Linux 6.1.0-20-amd64gcc version 12.2.0 (Debian 12.2.0-14)libc.so.6
Xeon E5-242030.46728.75759.051658.60.05819002400115360 KB6Linux 6.1.0-10-amd64gcc version 12.2.0 (Debian 12.2.0-14) libc.so.6Dell PowerEdge T420
Core i5-650069.17743.888119.007651.60.0513200360006144 KB4Linux 6.1.0-20-amd64gcc version 12.2.0 (Debian 12.2.0-14)libc.so.6Lenovo m910q (low-power VRM and tiny heatsink)
Xeon E3-1265L42.08139.80181.643607.20.0632400330018192 KB4Linux 6.1.0-9-amd64gcc version 12.2.0 (Debian 12.2.0-14)libc.so.6
Xeon E3-1265L42.86939.21968.985541.00.0562400330018192 KB4Linux 4.19.0-17-amd64gcc version 8.3.0 (Debian 8.3.0-6) libc-2.28.so
Core i5-650066.08646.95487.681538.50.0423200360006144 KB4Linux 4.19.0-17-amd64gcc version 8.3.0 (Debian 8.3.0-6) libc-2.28.so
Core i3-324045.77544.13291.169338.30.050340013072 KB2Linux 6.1.0-9-amd64gcc version 12.2.0 (Debian 12.2.0-14)libc.so.6
Core i5-4300U49.13438.82291.753326.40.0861900290013072 KB2Linux 6.1.0-9-amd64gcc version 12.2.0 (Debian 12.2.0-14)libc.so.6HP Elitebook Revolve 810 G2
Core i5-3210M41.58140.09783.024307.80.0622500310013072 KB2Linux 6.1.0-21-amd64gcc version 12.2.0 (Debian 12.2.0-14) libc.so.6Lenovo Thinkpad T430s
Core i3-324044.32043.23976.401299.10.044340013072 KB2Linux 5.10.0-0.bpo.7-amd64gcc version 8.3.0 (Debian 8.3.0-6) libc-2.28.so
Core i7-7500U64.02145.45269.810288.20.0532700350014096 KB2Linux 4.4.0-31-genericgcc version 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.1)libc-2.23.soHP 15-ay196nr
Core i5-4300U47.23338.26373.534279.50.0741900290013072 KB2Linux 5.10.0-0.bpo.7-amd64gcc version 8.3.0 (Debian 8.3.0-6) libc-2.28.soHP Elitebook Revolve 810 G2
Core i3-322045.01238.65759.466245.30.037330013072 KB2Linux 3.2.0-23-genericgcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)libc-2.15.so
Core i5-4300U43.77037.18160.490244.20.0641900290013072 KB2Linux 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 i5-321042.15536.24255.685229.80.0462500310013072 KB2Linux 3.2.0-23-genericgcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)libc-2.15.so
Pentium G324041.06439.57764.757208.70.034310003072 KB2Linux 4.4.0-116-genericgcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.1) libc-2.23.so
Celeron N293020.41915.55920.098178.30.0241830216011024 KB4Linux 4.4.0-47-genericgcc version 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.1) libc-2.23.so
Celeron J190022.29118.12321.677159.20.0202000241001024 KB4Linux 3.13.0-24-genericgcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) libc-2.19.soAcer Aspire X 603G
Pentium G62033.26928.14644.221144.70.028260003072 KB2Linux 3.2.0-23-genericgcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)libc-2.15.so
Celeron 1037U24.55423.40148.416143.60.040180002048 KB2Linux 6.1.0-9-amd64gcc version 12.2.0 (Debian 12.2.0-14)libc.so.6
Atom Z374010.38613.87021.172140.20.0261333186601024 KB4Linux 6.1.0-22-amd64gcc version 12.2.0 (Debian 12.2.0-14) libc.so.6Asus Transformer T100TA (64-bit os)
Celeron 1037U23.50722.89040.530126.80.035180002048 KB2Linux 5.10.0-0.bpo.7-amd64gcc version 8.3.0 (Debian 8.3.0-6) libc-2.28.so
Atom Z374017.20713.99416.753123.00.0231333186601024 KB4Linux 3.13.0-24-genericgcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)libc-2.19.soAsus Transformer T100TA (32-bit os)
Core i3 330M25.15815.43630.686115.30.027213313072 KB2Linux 3.0.0-12-genericgcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)libc-2.13.so
Celeron 1037U24.08322.03333.762111.60.031180002048 KB2Linux 4.4.0-31-genericgcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1) libc-2.23.so
Celeron 1037U22.15518.74029.83497.10.027180002048 KB2Linux 4.1.12-gentoogcc version 4.9.3 (Gentoo)glibc-2.21-r1
Core 2 Duo T590022.64217.05029.28292.70.021220002048 KB2Linux 3.0.0-12-genericgcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)libc-2.13.so
Celeron J180024.34918.55723.97585.10.018240001024 KB2Linux 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 MSM893910.90010.5669.93582.00.0141459004gcc 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 MT6589M6.3127.4436.97357.70.012120004Linux 3.4.5gcc 4.6.0 (-march=armv7-a)Android BionicAlcatel/T-Mobile Fierce
Opteron 25017.21423.86523.82247.70.020240001024 KB1Linux 3.11.0-12-genericgcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8)libc-2.17.so
Athlon 64 3200+14.99118.42727.49745.90.023200001024 KB1Linux 6.1.0-10-amd64gcc version 12.2.0 (Debian 12.2.0-14)libc.so.6
Athlon 64 3200+14.02013.70021.01034.70.017200001024 KB1Linux 2.6.28-hardened-r9x86_64-pc-linux-gnu-gcc
AMD C-60*5.9606.3819.96132.70.01610000512 KB2Linux 3.0.0-12-genericgcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)libc-2.13.so* Turbo-Boost not active
Pentium M9.90611.79814.51026.30.016160002048 KB1Linux 3.11.0-12-genericgcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8)libc-2.17.so
Celeron (Northwood)11.9828.46516.03824.50.00926000128 KB1Linux 3.10.35-std420-i586gcc version 4.4.7 (Gentoo 4.4.7 p1.2, pie-0.4.5)libc-2.15.so
Atom N2809.8518.4667.55420.00.01216671512 KB1Linux 3.0.0-12-genericgcc version 4.6.1 (Ubuntu 4.6.1-9ubuntu3)libc-2.13.so
Athlon (Thunderbird)7.3848.00611.78519.80.01811000256 KB1Linux 2.6.34-gentoo-r1gcc version 4.4.3 (Gentoo 4.4.3-r2 p1.2)libc-2.11.2.so
Atom N2808.0307.9107.41019.20.01116671512 KB1Linux 2.6.31-14-genericgcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu8)libc-2.10.1.so
ARM Cortex A83.4575.5371.7057.20.006120001Linux 3.0.8gcc 4.6.0Andrioid Bionic
ARM v7 Rev2 v712.3933.2910.6273.90.00580001Linux 2.6.29-omap1gcc 4.6.0 (-march=armv5te)Andrioid BionicRooted B&N Nook Simple Touch 1.2.1
ARM v6 Rev5 v611.0461.7640.2282.00.00360001Linux 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.