Key facts
Production status: End-of-life
Release date: 2014-08-12
Cores / Threads: 4 / 4
Base clock: 3100 MHz
Turbo clock: 3800 MHz
TDP: 65 W
Process: 28 nm
Codename: Kaveri
Generation: Athlon (Kaveri)
All available specs
| Field | Value |
|---|---|
| name | Athlon X4 840 |
| Socket | AMD Socket FM2+ |
| Foundry | GlobalFoundries |
| Process Size | 28 nm |
| Transistors | 2,411 million |
| Die Size | 245 mm² |
| Package | µPGA |
| Market | Desktop |
| Production Status | End-of-life |
| Release Date | Aug 12th, 2014 |
| Part# | AD840XYBJABOX AD840XYBI44JA |
| Frequency | 3.1 GHz |
| Turbo Clock | up to 3.8 GHz |
| Base Clock | 100 MHz |
| Multiplier | 31.0x |
| Multiplier Unlocked | Yes |
| Voltage | 1.275 V |
| Codename | Kaveri |
| Generation | Athlon (Kaveri) |
| Memory Support | DDR3 |
| ECC Memory | No |
| # of Cores | 4 |
| # of Threads | 4 |
| SMP # CPUs | 1 |
| Cache L1 | 256 KB |
| Cache L2 | 4 MB |
| Features | MMX, 3DNow!, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, BMI1, FMA3, FMA4, AMD64, CLMUL, CnQ, NX bit, AMD-V, XOP, ABM, TBM, F16C, Turbo Core 3.0 |
| Notes | 16KB L1 data cache per core. 96KB L1 instruction cache shared per two cores (per module).2MB L2 cache shared per two cores (per module). |
| Rated Speed | 2133 MT/s |
| Memory Bus | Dual-channel |
| Memory Bandwidth | 34.1 GB/s |
| PCI-Express | Gen 3, 16 Lanes (CPU only) |
| tCaseMax | 72°C |
| Chipsets | A88X, A85X, A78, A75, A68H |
| Benchmark rank | 1690 |
| Benchmark samples | 224 |
| Benchmark price | 124.95 |
| Benchmark category | Desktop |
| Benchmark socket | FM2+ |
| Benchmark date | 2015-01-01 |
| Benchmark TDP (W) | 65 |
| Benchmark base (MHz) | 3100 |
| Benchmark turbo (MHz) | 3800 |
| Benchmark cores | 2 |
| Benchmark threads per core | 2 |
| Benchmark threads | 4 |