Radeon HD 8400 vs Radeon HD 7400G
Radeon HD 8400
Popular choices:
Radeon HD 7400G
Popular choices:
Performance Spectrum - GPU
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money. The Radeon HD 8400 is positioned at rank 142 and the Radeon HD 7400G is on rank 219, so the Radeon HD 8400 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon HD 8400
Performance Per Dollar Radeon HD 7400G
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon HD 7400G is significantly newer (2025 vs 2012). The Radeon HD 7400G likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon HD 8400 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon HD 8400 is the superior choice for raw performance. It leads with a 1.5% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 7400G.
| Insight | Radeon HD 8400 | Radeon HD 7400G |
|---|---|---|
| Performance | ✅Leading raw performance (+1.5%) | ❌Lower raw frame rates (-1.5%) |
| Longevity | 🛑Obsolete Architecture (2012 / GCN 1.0 (2012−2020)) | RDNA 3.0 (2022−2026) (6nm) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
The Radeon HD 8400 offers a compelling cost-to-performance ratio. Priced at $5 versus $15 for the Radeon HD 7400G, it costs 67% less. While it maintains basic entry-level capabilities, this results in a 204.5% higher cost efficiency score.
| Insight | Radeon HD 8400 | Radeon HD 7400G |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+204.5%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($5) | ⚠️Higher upfront cost ($15) |
Performance Check
Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.
Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.
Technical Specifications
Side-by-side comparison of Radeon HD 8400 and Radeon HD 7400G
Radeon HD 8400
The Radeon HD 8400 is manufactured by AMD. It was released in March 5 2012. It features the GCN 1.0 architecture. The core clock speed is 1000 MHz. It has 1280 shading units. The thermal design power (TDP) is 200W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 271 points. Launch price was $349.
Radeon HD 7400G
The Radeon HD 7400G is manufactured by AMD. It was released in August 8 2025. It features the RDNA 3.0 architecture. The core clock ranges from 1452 MHz to 2300 MHz. It has 1792 shading units. The thermal design power (TDP) is 43W. Manufactured using 6 nm process technology. It features 28 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 267 points.
Graphics Performance
The Radeon HD 8400 scores 271 and the Radeon HD 7400G reaches 267 in the G3D Mark benchmark — just a 1.5% difference, making them near-identical in rasterization performance. The Radeon HD 8400 is built on GCN 1.0 while the Radeon HD 7400G uses RDNA 3.0, both on 28 nm vs 6 nm. Shader units: 1,280 (Radeon HD 8400) vs 1,792 (Radeon HD 7400G). Raw compute: 2.56 TFLOPS (Radeon HD 8400) vs 16.49 TFLOPS (Radeon HD 7400G).
| Feature | Radeon HD 8400 | Radeon HD 7400G |
|---|---|---|
| G3D Mark Score | 271+1% | 267 |
| Architecture | GCN 1.0 | RDNA 3.0 |
| Process Node | 28 nm | 6 nm |
| Shading Units | 1280 | 1792+40% |
| Compute (TFLOPS) | 2.56 TFLOPS | 16.49 TFLOPS+544% |
| ROPs | 32 | 64+100% |
| TMUs | 80 | 112+40% |
| L1 Cache | 320 KB | 512 KB+60% |
| L2 Cache | 0.5 MB | 2 MB+300% |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 8400 | Radeon HD 7400G |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 512 MB of GDDR5. Bus width: 128-bit vs 128-bit. L2 Cache: 0.5 MB (Radeon HD 8400) vs 2 MB (Radeon HD 7400G) — the Radeon HD 7400G has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 8400 | Radeon HD 7400G |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 0.5 MB | 2 MB+300% |
Display & API Support
DirectX support: 11.1 (Radeon HD 8400) vs 11.2 (11_0) (Radeon HD 7400G). OpenGL: 4.6 vs 4.4. Maximum simultaneous displays: 2 vs 2.
| Feature | Radeon HD 8400 | Radeon HD 7400G |
|---|---|---|
| DirectX | 11.1 | 11.2 (11_0) |
| OpenGL | 4.6+5% | 4.4 |
| Max Displays | 2 | 2 |
Media & Encoding
Hardware encoder: VCE 2.0 (Radeon HD 8400) vs None (Radeon HD 7400G). Decoder: UVD 4.2 vs UVD 3.0. Supported codecs: H.264,MPEG-2,VC-1,MPEG-4 (Radeon HD 8400) vs H.264,VC-1,MPEG-2,MPEG-4,MVC (Radeon HD 7400G).
| Feature | Radeon HD 8400 | Radeon HD 7400G |
|---|---|---|
| Encoder | VCE 2.0 | None |
| Decoder | UVD 4.2 | UVD 3.0 |
| Codecs | H.264,MPEG-2,VC-1,MPEG-4 | H.264,VC-1,MPEG-2,MPEG-4,MVC |
Power & Dimensions
The Radeon HD 8400 draws 200W versus the Radeon HD 7400G's 43W — a 129.2% difference. The Radeon HD 7400G is more power-efficient. Recommended PSU: 350W (Radeon HD 8400) vs 350W (Radeon HD 7400G). Power connectors: 1x 6-pin vs 1x 6-pin. Typical load temperature: 75 vs 75.
| Feature | Radeon HD 8400 | Radeon HD 7400G |
|---|---|---|
| TDP | 200W | 43W-79% |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | 1x 6-pin |
| Length | — | 0mm |
| Height | — | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | 75 | 75 |
| Perf/Watt | 1.4 | 6.2+343% |
Value Analysis
The Radeon HD 8400 launched at $30 MSRP and currently averages $5, while the Radeon HD 7400G launched at $50 and now averages $15. The Radeon HD 8400 costs 66.7% less ($10 savings) at current market prices. Performance per dollar (G3D Mark / price): 54.2 (Radeon HD 8400) vs 17.8 (Radeon HD 7400G) — the Radeon HD 8400 offers 204.5% better value. The Radeon HD 7400G is the newer GPU (2025 vs 2012).
| Feature | Radeon HD 8400 | Radeon HD 7400G |
|---|---|---|
| MSRP | $30-40% | $50 |
| Avg Price (30d) | $5-67% | $15 |
| Performance per Dollar | 54.2+204% | 17.8 |
| Codename | Pitcairn | Navi 33 |
| Release | March 5 2012 | August 8 2025 |
| Ranking | #460 | #229 |
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