Phenom II X4 840
AMD
PassMark
2,449
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Overview
The Phenom II X4 840 is manufactured by AMD. It was released in 4 January 2011 (14 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,449 points. Launch price was $90.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
FPS Benchmarks
Predicted performance for Phenom II X4 840 across popular games. Tested paired with RTX 4090 to isolate CPU performance.
Counter-Strike 2
Euro Truck Simulator 2
Final Fantasy XIV
Grand Theft Auto V
Honkai: Star Rail
League of Legends
Marvel Rivals
Monster Hunter Wilds
Naraka: Bladepoint
Path of Exile 2
Technical Analysis
Detailed breakdown of Phenom II X4 840 specifications and capabilities.
Processing Power
The Phenom II X4 840 is a 4-core / 4-thread processor based on the Propus (2009−2011) architecture, manufactured on a 45 nm process node. It reaches a maximum boost clock of 3.2 GHz from a base frequency of 3.2 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 0 kB of L3 cache, plus 512 kB (per core) of L2 cache and 128 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 2,449, placing it in the Entry Level performance tier as a Legacy generation product.
| Specification | Phenom II X4 840 |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 4C / 4T |
| Max Boost ClockPeak single-core speed under boost | 3.2 GHz |
| Base ClockGuaranteed minimum operating frequency | 3.2 GHz |
| ArchitectureCPU microarchitecture design | Propus (2009−2011) |
| Process NodeFabrication technology — smaller = more efficient | 45 nm |
| L3 CacheShared cache — reduces memory latency for all cores | 0 kB |
| L2 CachePer-core fast cache for frequently accessed data | 512 kB (per core) |
| L1 CacheUltra-fast per-core cache | 128 kB (per core) |
| Die SizePhysical silicon area of the processor | 169 mm2 |
| Transistor CountMore transistors = more capabilities | 300 million |
| 64-bit Support | Yes |
| Windows 11 Compatible | No |
| PassMark ScoreOverall multi-threaded benchmark score | 2,449 |
Memory & Platform
The Phenom II X4 840 fits into the AM3 socket and supports PCIe 2.0. It supports DDR3 memory.
| Specification | Phenom II X4 840 |
|---|---|
| TypeDesktop or Laptop processor | desktop |
| SocketMotherboard socket required | AM3 |
| PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth | PCIe 2.0 |
| RAM TypeSupported memory standard | DDR3 |
| Max CPUs in ConfigMulti-socket support for servers | 1 |
Power & Cooling
The Phenom II X4 840 has a rated TDP (Thermal Design Power) of 95 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.
| Specification | Phenom II X4 840 |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 95 Watt |
Value Analysis
Performance ranking position: #2408 out of all indexed processors.
| Specification | Phenom II X4 840 |
|---|---|
| Launch PriceOriginal retail price at launch | $90 |
| Performance RankPosition in overall performance ranking | #2408 |
| Release DateLaunch date | 4 January 2011 (14 years ago) |
| Release Year | 2011 |
| DesignerArchitecture designer (e.g. Intel, AMD) | AMD |
Specifications Reference
Raw spec sheet for quick lookup. The analysis cards above explain what these fields mean in practice.
4 categories
General Information
6 specs
General Information
6 specs
| Type | desktop |
| Designer | AMD |
| Launch Price | $90 |
| Release Date | 4 January 2011 (14 years ago) |
| Architecture Codename | Propus (2009−2011) |
| Performance Ranking Position | 2408 |
Technical Specifications
12 specs
Technical Specifications
12 specs
| Cores | 4 |
| Threads | 4 |
| Die Size | 169 mm2 |
| L1 Cache | 128 kB (per core) |
| L2 Cache | 512 kB (per core) |
| L3 Cache | 0 kB |
| Max Frequency | 3.2 GHz |
| 64-Bit Support | + |
| Base Frequency | 3.2 GHz |
| Transistor Count | 300 million |
| Process Technology | 45 nm |
| Windows 11 Compatible | - |
Compatibility
4 specs
Compatibility
4 specs
| Socket | AM3 |
| PCIe Generation | PCIe 2.0 |
| Power Consumption (TDP) | 95 Watt |
| Max Processors In Config | 1 |
Memory
1 spec
Memory
1 spec
| RAM Types | DDR3 |
Similar Performance
Processors with benchmark scores closest to the current hardware, grouped by manufacturer.
Intel (12)
AMD (12)
Our Recommendation for Phenom II X4 840
Suggested pairings based on performance balance
Minimum (Avoid Bottleneck) (12)
Recommended (Balanced) (12)
High-End (Max Performance) (12)
Popular Comparisons
Compare Phenom II X4 840 with other popular CPUs
Compare Phenom II X4 840
See how this CPU stacks up against similar alternatives
Better Alternatives (8)
Similar or Lower Performance (8)
