A4-4000 vs Pentium 977
A4-4000
Pentium 977
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.
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. The A4-4000 is positioned at rank 811 and the Pentium 977 is on rank 1117, so the A4-4000 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar A4-4000
Performance Per Dollar Pentium 977
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | A4-4000 | Pentium 977 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
| Longevity | 🛑 Legacy (Richland (2013−2014) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | A4-4000 | Pentium 977 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of A4-4000 and Pentium 977
A4-4000
The A4-4000 is manufactured by AMD. It was released in 2014-01-01. It is based on the Richland (2013−2014) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3.2 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM2. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,152 points. Launch price was $50.
Pentium 977
The Pentium 977 is manufactured by Intel. It was released in 1 January 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.4 GHz, with boost up to 1.4 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: BGA1023. Thermal design power (TDP): 17 Watt. Memory support: DDR3. Passmark benchmark score: 1,148 points. Launch price was $134.
Processing Power
Both the A4-4000 and Pentium 977 share an identical 2-core/2-thread configuration. Boost clocks reach 3.2 GHz on the A4-4000 versus 1.4 GHz on the Pentium 977 — a 78.3% clock advantage for the A4-4000 (base: 3 GHz vs 1.4 GHz). The A4-4000 uses the Richland (2013−2014) architecture (32 nm), while the Pentium 977 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the A4-4000 scores 1,152 against the Pentium 977's 1,148 — a 0.3% lead for the A4-4000. L3 cache: 0 kB on the A4-4000 vs 2 MB (total) on the Pentium 977.
| Feature | A4-4000 | Pentium 977 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 3.2 GHz+129% | 1.4 GHz |
| Base Clock | 3 GHz+114% | 1.4 GHz |
| L3 Cache | 0 kB | 2 MB (total) |
| L2 Cache | 1 MB (per core)+300% | 256K (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Richland (2013−2014) | Sandy Bridge (2011−2013) |
| PassMark | 1,152 | 1,148 |
| Geekbench 6 Single | 348 | — |
Memory & Platform
The A4-4000 uses the FM2 socket (PCIe 3.0), while the Pentium 977 uses BGA1023 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | A4-4000 | Pentium 977 |
|---|---|---|
| Socket | FM2 | BGA1023 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | — |
| Max RAM Capacity | 32 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 8 | — |
Advanced Features
Virtualization: AMD-V (A4-4000) / not specified (Pentium 977). The A4-4000 includes integrated graphics (Radeon HD 7480D), while the Pentium 977 requires a dedicated GPU. Primary use case: A4-4000 targets Budget Desktop. Direct competitor: A4-4000 rivals Celeron G1610.
| Feature | A4-4000 | Pentium 977 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Radeon HD 7480D | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Budget Desktop | — |
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