Phenom II X3 B77
AMD
PassMark
1,844
MSRP
$281
AVG Price
$35
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 X3 B77 is manufactured by AMD. It was released in 2009-01-01. It is based on the Heka (2009−2010) architecture. It features 3 cores and 3 threads. Base frequency is 3.2 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: 1,844 points. Launch price was $149.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Phenom II X3 B77 is positioned at rank #1057 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 X3 B77
Technical Analysis
Detailed breakdown of Phenom II X3 B77 specifications and capabilities.
Processing Power
The Phenom II X3 B77 is a 3-core / 3-thread processor based on the Heka (2009−2010) 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 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 1,844, placing it in the Entry Level performance tier as a Legacy generation product.
| Specification | Phenom II X3 B77 |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 3C / 3T |
| Max Boost ClockPeak single-core speed under boost | 3.2 GHz |
| Base ClockGuaranteed minimum operating frequency | 3.2 GHz |
| ArchitectureCPU microarchitecture design | Heka (2009−2010) |
| 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 | 258 mm2 |
| Transistor CountMore transistors = more capabilities | 758 million |
| 64-bit Support | Yes |
| Windows 11 Compatible | No |
| PassMark ScoreOverall multi-threaded benchmark score | 1,844 |
Memory & Platform
The Phenom II X3 B77 fits into the AM3 socket and supports PCIe 2.0 with 0 total PCIe lanes for expansion cards and storage. It supports DDR3 memory at speeds up to DDR3-1333 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 32 GB across 2 channels (dual-channel doubles bandwidth). It supports ECC memory, providing error-correcting capabilities — essential for mission-critical workloads and servers.
| Specification | Phenom II X3 B77 |
|---|---|
| TypeDesktop or Laptop processor | desktop |
| SocketMotherboard socket required | AM3 |
| PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth | PCIe 2.0 |
| PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion | 0 |
| RAM TypeSupported memory standard | DDR3 |
| Max RAM SpeedMaximum officially supported memory frequency | DDR3-1333 |
| Max RAM CapacityMaximum installable memory | 32 GB |
| RAM ChannelsDual-channel doubles bandwidth vs single-channel | 2 |
| ECC SupportError-Correcting Code memory — prevents data corruption | Yes |
| Integrated GPUBuilt-in graphics processor | No |
| Compatible ChipsetsMotherboard chipsets that support this CPU | AM3 |
| Max CPUs in ConfigMulti-socket support for servers | 1 |
Power & Cooling
The Phenom II X3 B77 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 X3 B77 |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 95 Watt |
Value Analysis
At an average price of $35 (MSRP: $281), the Phenom II X3 B77 delivers 53 PassMark points per dollar. It currently holds Rank #1057 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #2655 out of all indexed processors.
| Specification | Phenom II X3 B77 |
|---|---|
| MSRPManufacturer's Suggested Retail Price | $281 |
| Avg Price (30d)Average market price over the last 30 days | $35 |
| Launch PriceOriginal retail price at launch | $149 |
| Cost-Benefit RankPosition in overall value ranking | #1057 |
| Performance RankPosition in overall performance ranking | #2655 |
| Release DateLaunch date | 2009-01-01 |
| Release Year | 2010 |
| DesignerArchitecture designer (e.g. Intel, AMD) | AMD |
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Our Recommendation for Phenom II X3 B77
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