Phenom II X4 840T
AMD
PassMark
2,367
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 840T is manufactured by AMD. It was released in 1 September 2010 (15 years ago). It is based on the Zosma (2010−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.9 GHz, with boost up to 3.2 GHz. L3 cache: 6 MB (total). 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: 2,367 points. Launch price was $80.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Phenom II X4 840T is positioned at rank #265 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 Phenom II X4 840T
FPS Benchmarks
Predicted performance for Phenom II X4 840T across popular games. Tested paired with RTX 4090 to isolate CPU performance.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Technical Analysis
Detailed breakdown of Phenom II X4 840T specifications and capabilities.
Processing Power
The Phenom II X4 840T is a 4-core / 4-thread processor based on the Zosma (2010−2011) architecture, manufactured on a 45 nm process node. It reaches a maximum boost clock of 3.2 GHz from a base frequency of 2.9 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 6 MB (total) 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 2,367, placing it in the Entry Level performance tier as a Legacy generation product.
| Specification | Phenom II X4 840T |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 4C / 4T |
| Max Boost ClockPeak single-core speed under boost | 3.2 GHz |
| Base ClockGuaranteed minimum operating frequency | 2.9 GHz |
| ArchitectureCPU microarchitecture design | Zosma (2010−2011) |
| Process NodeFabrication technology — smaller = more efficient | 45 nm |
| L3 CacheShared cache — reduces memory latency for all cores | 6 MB (total) |
| 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 | 346 mm2 |
| Transistor CountMore transistors = more capabilities | 904 million |
| 64-bit Support | Yes |
| Windows 11 Compatible | No |
| PassMark ScoreOverall multi-threaded benchmark score | 2,367 |
Memory & Platform
The Phenom II X4 840T fits into the AM3 socket and supports PCIe 2.0. It supports DDR3 memory.
| Specification | Phenom II X4 840T |
|---|---|
| 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 840T 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 840T |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 95 Watt |
Value Analysis
It currently holds Rank #265 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #2437 out of all indexed processors.
| Specification | Phenom II X4 840T |
|---|---|
| Launch PriceOriginal retail price at launch | $80 |
| Cost-Benefit RankPosition in overall value ranking | #265 |
| Performance RankPosition in overall performance ranking | #2437 |
| Release DateLaunch date | 1 September 2010 (15 years ago) |
| Release Year | 2010 |
| DesignerArchitecture designer (e.g. Intel, AMD) | AMD |
Similar Performance
Processors with benchmark scores closest to the current hardware, grouped by manufacturer.
Intel (12)
AMD (12)
Our Recommendation for Phenom II X4 840T
Suggested pairings based on performance balance
Minimum (Avoid Bottleneck) (12)
Recommended (Balanced) (12)
High-End (Max Performance) (12)
Popular Comparisons
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Compare Phenom II X4 840T
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