Phenom II X3 B77
Ryzen 7 5700X
Phenom II X3 B77 vs Ryzen 7 5700X Performance Spectrum
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.
Phenom II X3 B77 vs Ryzen 7 5700X FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Phenom II X3 B77 vs Ryzen 7 5700X: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Phenom II X3 B77
2010Why buy it
- ✅Costs $18 less on MSRP ($281 MSRP vs $299 MSRP).
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen 7 5700X across 50 shared CPU benchmark tests.
- ❌Lower PassMark (1,844 vs 26,609).
- ❌Smaller total L3 cache (6 MB vs 32 MB).
- ❌Lower PassMark per dollar, at 6.6 vs 89.0 PassMark/$ ($281 MSRP vs $299 MSRP).
- ❌46.2% higher power demand at 95W vs 65W.
Ryzen 7 5700X
2022Why buy it
- ✅Better for gaming: +459.2% higher average FPS across 50 shared CPU benchmark tests.
- ✅+433.3% larger total L3 cache (32 MB vs 6 MB).
- ✅Delivers 1256.1% more PassMark for each dollar spent, at 89.0 vs 6.6 PassMark/$ ($299 MSRP vs $281 MSRP).
- ✅Draws 65W instead of 95W, a 30W reduction.
- ✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.
Trade-offs
- ❌6.4% HIGHER MSRP$299 MSRPvs$281 MSRP
Quick Answers
So, is Ryzen 7 5700X better than Phenom II X3 B77?
Which one is better for gaming?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Phenom II X3 B77 vs Ryzen 7 5700X Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Phenom II X3 B77
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.
Ryzen 7 5700X
The Ryzen 7 5700X is manufactured by AMD. It was released in 4 April 2022 (3 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.4 GHz, with boost up to 4.6 GHz. L3 cache: 32 MB (total). L2 cache: 512K (per core). Built on 7 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 26,609 points. Launch price was $299.
Processing Power
The Phenom II X3 B77 packs 3 cores / 3 threads, while the Ryzen 7 5700X offers 8 cores / 16 threads — the Ryzen 7 5700X has 5 more cores. Boost clocks reach 3.2 GHz on the Phenom II X3 B77 versus 4.6 GHz on the Ryzen 7 5700X — a 35.9% clock advantage for the Ryzen 7 5700X (base: 3.2 GHz vs 3.4 GHz). The Phenom II X3 B77 uses the Heka (2009−2010) architecture (45 nm), while the Ryzen 7 5700X uses Vermeer (Zen 3) (2020−2022) (7 nm). In PassMark, the Phenom II X3 B77 scores 1,844 against the Ryzen 7 5700X's 26,609 — a 174.1% lead for the Ryzen 7 5700X. L3 cache: 6 MB (total) on the Phenom II X3 B77 vs 32 MB (total) on the Ryzen 7 5700X.
| Feature | Phenom II X3 B77 | Ryzen 7 5700X |
|---|---|---|
| Cores / Threads | 3 / 3 | 8 / 16+167% |
| Boost Clock | 3.2 GHz | 4.6 GHz+44% |
| Base Clock | 3.2 GHz | 3.4 GHz+6% |
| L3 Cache | 6 MB (total) | 32 MB (total)+433% |
| L2 Cache | 512 kB (per core) | 512K (per core) |
| Process | 45 nm | 7 nm-84% |
| Architecture | Heka (2009−2010) | Vermeer (Zen 3) (2020−2022) |
| PassMark | 1,844 | 26,609+1343% |
| Cinebench R23 Multi | — | 14,000 |
| Geekbench 6 Single | — | 2,116 |
| Geekbench 6 Multi | — | 9,715 |
Memory & Platform
The Phenom II X3 B77 uses the AM3 socket (PCIe 2.0), while the Ryzen 7 5700X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Phenom II X3 B77 versus DDR4-3200 on the Ryzen 7 5700X — the Ryzen 7 5700X supports 140.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 5700X supports up to 128 GB of RAM compared to 32 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Phenom II X3 B77) vs 24 (Ryzen 7 5700X) — the Ryzen 7 5700X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM3 (Phenom II X3 B77) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 7 5700X).
| Feature | Phenom II X3 B77 | Ryzen 7 5700X |
|---|---|---|
| Socket | AM3 | AM4 |
| PCIe Generation | PCIe 2.0 | PCIe 4.0+100% |
| Max RAM Speed | DDR3-1333 | DDR4-3200+140% |
| Max RAM Capacity | 32 GB | 128 GB+300% |
| RAM Channels | 2 | 2 |
| ECC Support | Yes | Yes |
| PCIe Lanes | 0 | 24 |
Advanced Features
Virtualization: not specified (Phenom II X3 B77) / AMD-V (Ryzen 7 5700X). Primary use case: Ryzen 7 5700X targets Gaming. Direct competitor: Ryzen 7 5700X rivals Core i7-11700K.
| Feature | Phenom II X3 B77 | Ryzen 7 5700X |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Gaming |
Value Analysis
At launch, the Phenom II X3 B77 was priced at $281, while the Ryzen 7 5700X came in at $299. On launch pricing ($281 vs $299), Phenom II X3 B77 was $18 cheaper. In terms of value on MSRP (PassMark points per dollar), the Phenom II X3 B77 delivers 6.6 pts/$ vs 89.0 pts/$ for the Ryzen 7 5700X — making the Ryzen 7 5700X the 172.5% better value option.
| Feature | Phenom II X3 B77 | Ryzen 7 5700X |
|---|---|---|
| MSRP | $281-6% | $299 |
| Performance per Dollar | 6.6 | 89.0+1248% |
| Release Date | 2010 | 2022 |
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