Phenom II X4 840 vs FX-8350
Aggregated performance score
FX-8350 outperforms Phenom II X4 840 by a whopping 148% based on our aggregated benchmark results.
Primary details
Comparing FX-8350 and Phenom II X4 840 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1367 | 2008 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.94 | 3.08 |
| Market segment | Desktop processor | Desktop processor |
| Series | AMD FX-Series (Desktop) | no data |
| Architecture codename | Vishera (2012−2015) | Propus (2009−2011) |
| Release date | 23 October 2012 (11 years ago) | 4 January 2011 (13 years ago) |
| Launch price (MSRP) | no data | $90 |
| Current price | $200 | $38 (0.4x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Phenom II X4 840 has 228% better value for money than FX-8350.
Detailed specifications
FX-8350 and Phenom II X4 840 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 8 (Octa-Core) | 4 (Quad-Core) |
| Threads | 8 | 4 |
| Base clock speed | 4 GHz | 3.2 GHz |
| Boost clock speed | 4.2 GHz | 3.2 GHz |
| L1 cache | no data | 128 KB (per core) |
| L2 cache | 8192 KB | 512 KB (per core) |
| L3 cache | no data | 0 KB |
| Chip lithography | 32 nm | 45 nm |
| Die size | 315 mm2 | 169 mm2 |
| Maximum core temperature | 61 °C | no data |
| Number of transistors | 1,200 million | 300 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | Yes | No |
| P0 Vcore voltage | Min: 1.2 V - Max: 1.4 V | no data |
Compatibility
Information on FX-8350 and Phenom II X4 840 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | AM3+ | AM3 |
| Power consumption (TDP) | 125 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by FX-8350 and Phenom II X4 840. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4a, AMD64, AMD-V, AES, AVX, CLMUL, CVT16, EVP, FMA4, XOP, Turbo Core, HT3.1 | no data |
| AES-NI | + | no data |
| FMA | + | no data |
| AVX | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by FX-8350 and Phenom II X4 840 are enumerated here.
| AMD-V | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by FX-8350 and Phenom II X4 840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | no data |
Peripherals
Specifications and connection of peripherals supported by FX-8350 and Phenom II X4 840.
| PCIe version | n/a | 2.0 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
FX-8350 outperforms Phenom II X4 840 by 148% based on our aggregated benchmark results.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
FX-8350 outperforms Phenom II X4 840 by 148% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
FX-8350 outperforms Phenom II X4 840 by 50% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
FX-8350 outperforms Phenom II X4 840 by 124% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 3.84 | 1.55 |
| Recency | 23 October 2012 | 4 January 2011 |
| Physical cores | 8 | 4 |
| Threads | 8 | 4 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 125 Watt | 95 Watt |
The FX-8350 is our recommended choice as it beats the Phenom II X4 840 in performance tests.
Should you still have questions on choice between FX-8350 and Phenom II X4 840, ask them in Comments section, and we shall answer.
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