Benchmarks » AMD » Athlon X4 » Athlon X4 840
Please do not spider these pages to gather CPU data,
the data is freely available:
CPU specification data in JSON format
(6202 models, ~4MB, updated 2026-05-05)

Please do not spider these pages to gather benchmark
data, it is freely available:
Raw benchmark data (13MB, updated 2026-05-10)

AMD – Athlon X4

Athlon X4 840

Performance
Cores4
Threads4
Clock (min)3100
Clock (max)3800
Cache (L1)80 kB (x4)
Cache (L2)4.00 MB total
Code NameKaveri
Process28 nm
TDP65 W
SocketSocket FM2+
CPUID630F01
Release Date2014 Q3
Link: CPWCPU World
Link: x86x86 Guide
Found 4 benchmarks for AMD Athlon X4 840

Throughput

No throughput benchmarks available for this CPU.
Archaic benchmark data (not relevant to current performance, for historic reference only)

FFT Performance (single-thread)

896K1024K1280K1536K1792K2048K2560K3072K3584K4096K5120K6144K7168K8192K
FFT
13.384
12.804
15.280
18.609
22.774
25.034
32.527
40.162
48.123
52.863
69.242
86.368
102.417
113.453
FFT_2T
10.054
10.798
13.265
16.201
18.805
20.898
26.818
34.517
41.096
42.660
57.506
75.561
87.437
97.147
FFT_4T
8.971
6.794
8.681
10.883
12.816
13.644
19.351
24.518
26.778
29.861
36.656
43.761
53.785
62.648

Trial Factoring

5859606162636465
2.820
3.005
2.861
2.915
3.075
3.296
4.004
4.965