Radeon RX 580 2048SP vs Radeon RX 6400
Radeon RX 580 2048SP
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Radeon RX 6400
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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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
Performance Per Dollar Radeon RX 6400
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon RX 6400 is the superior choice for raw performance. It leads with a 1.2% higher G3D Mark score. However, the Radeon RX 580 2048SP offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Radeon RX 580 2048SP | Radeon RX 6400 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.2%) | ✅Leading raw performance (+1.2%) |
| Longevity | 🛑Obsolete Architecture (2018 / GCN 4.0 (2016−2020)) | RDNA 2.0 (2020−2025) (6nm) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+300%) | ❌ Less VRAM capacity |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The Radeon RX 580 2048SP offers a compelling cost-to-performance ratio. Priced at $60 versus $139 for the Radeon RX 6400, it costs 57% less. While it maintains competitive performance, this results in a 128.8% higher cost efficiency score.
| Insight | Radeon RX 580 2048SP | Radeon RX 6400 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+128.8%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($60) | ⚠️Higher upfront cost ($139) |
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 RX 580 2048SP and Radeon RX 6400
Radeon RX 580 2048SP
The Radeon RX 580 2048SP is manufactured by AMD. It was released in October 15 2018. It features the GCN 4.0 architecture. The core clock ranges from 1168 MHz to 1284 MHz. It has 2048 shading units. The thermal design power (TDP) is 150W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 7,633 points.
Radeon RX 6400
The Radeon RX 6400 is manufactured by AMD. It was released in January 19 2022. It features the RDNA 2.0 architecture. The core clock ranges from 1923 MHz to 2321 MHz. It has 768 shading units. The thermal design power (TDP) is 53W. Manufactured using 6 nm process technology. It features 12 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 7,728 points. Launch price was $159.
Graphics Performance
The Radeon RX 580 2048SP scores 7,633 and the Radeon RX 6400 reaches 7,728 in the G3D Mark benchmark — just a 1.2% difference, making them near-identical in rasterization performance. The Radeon RX 580 2048SP is built on GCN 4.0 while the Radeon RX 6400 uses RDNA 2.0, both on 14 nm vs 6 nm. Shader units: 2,048 (Radeon RX 580 2048SP) vs 768 (Radeon RX 6400). Raw compute: 5.259 TFLOPS (Radeon RX 580 2048SP) vs 3.565 TFLOPS (Radeon RX 6400). Boost clocks: 1284 MHz vs 2321 MHz.
| Feature | Radeon RX 580 2048SP | Radeon RX 6400 |
|---|---|---|
| G3D Mark Score | 7,633 | 7,728+1% |
| Architecture | GCN 4.0 | RDNA 2.0 |
| Process Node | 14 nm | 6 nm |
| Shading Units | 2048+167% | 768 |
| Compute (TFLOPS) | 5.259 TFLOPS+48% | 3.565 TFLOPS |
| Boost Clock | 1284 MHz | 2321 MHz+81% |
| ROPs | 32 | 32 |
| TMUs | 128+167% | 48 |
| L1 Cache | 512 KB+100% | 256 KB |
| L2 Cache | 2 MB+100% | 1 MB |
Advanced Features (DLSS/FSR)
A critical advantage for the Radeon RX 6400 is support for FSR 3 / AFMF. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The Radeon RX 580 2048SP lacks specific hardware/driver support for this native frame generation tier.
| Feature | Radeon RX 580 2048SP | Radeon RX 6400 |
|---|---|---|
| Upscaling Tech | FSR 2.1 | FSR 3 (Native) |
| Frame Generation | FSR 3 (Compatible) | FSR 3 / AFMF (Driver) |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | AMD Anti-Lag |
Video Memory (VRAM)
The Radeon RX 580 2048SP comes with 16 GB of VRAM, while the Radeon RX 6400 has 4 GB. The Radeon RX 580 2048SP offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 224 GB/s (Radeon RX 580 2048SP) vs 128 GB/s (Radeon RX 6400) — a 75% advantage for the Radeon RX 580 2048SP. Bus width: 256-bit vs 64-bit. L2 Cache: 2 MB (Radeon RX 580 2048SP) vs 1 MB (Radeon RX 6400) — the Radeon RX 580 2048SP has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon RX 580 2048SP | Radeon RX 6400 |
|---|---|---|
| VRAM Capacity | 16 GB+300% | 4 GB |
| Memory Type | GDDR5 | GDDR6 |
| Memory Bandwidth | 224 GB/s+75% | 128 GB/s |
| Bus Width | 256-bit+300% | 64-bit |
| L2 Cache | 2 MB+100% | 1 MB |
Display & API Support
DirectX support: 12 (Radeon RX 580 2048SP) vs 12.2 (Radeon RX 6400). Vulkan: 1.3 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 2.
| Feature | Radeon RX 580 2048SP | Radeon RX 6400 |
|---|---|---|
| DirectX | 12 | 12.2+2% |
| Vulkan | 1.3 | 1.3 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4+100% | 2 |
Media & Encoding
Hardware encoder: VCE 3.4 (Radeon RX 580 2048SP) vs None (Radeon RX 6400). Decoder: UVD 6.3 vs VCN 3.0 (Limited). Supported codecs: H.264,HEVC,VP9 (Radeon RX 580 2048SP) vs MPEG-2,H.264 (Decode),HEVC (Decode) (Radeon RX 6400).
| Feature | Radeon RX 580 2048SP | Radeon RX 6400 |
|---|---|---|
| Encoder | VCE 3.4 | None |
| Decoder | UVD 6.3 | VCN 3.0 (Limited) |
| Codecs | H.264,HEVC,VP9 | MPEG-2,H.264 (Decode),HEVC (Decode) |
Power & Dimensions
The Radeon RX 580 2048SP draws 150W versus the Radeon RX 6400's 53W — a 95.6% difference. The Radeon RX 6400 is more power-efficient. Recommended PSU: 450W (Radeon RX 580 2048SP) vs 350W (Radeon RX 6400). Power connectors: 8-pin vs None. Card length: 241mm vs 172mm, occupying 2 vs 1 slots. Typical load temperature: 75°C vs 75°C.
| Feature | Radeon RX 580 2048SP | Radeon RX 6400 |
|---|---|---|
| TDP | 150W | 53W-65% |
| Recommended PSU | 450W | 350W-22% |
| Power Connector | 8-pin | None |
| Length | 241mm | 172mm |
| Height | — | 112mm |
| Slots | 2 | 1-50% |
| Temp (Load) | 75°C | 75°C |
| Perf/Watt | 50.9 | 145.8+186% |
Value Analysis
The Radeon RX 580 2048SP launched at $229 MSRP and currently averages $60, while the Radeon RX 6400 launched at $159 and now averages $139. The Radeon RX 580 2048SP costs 56.8% less ($79 savings) at current market prices. Performance per dollar (G3D Mark / price): 127.2 (Radeon RX 580 2048SP) vs 55.6 (Radeon RX 6400) — the Radeon RX 580 2048SP offers 128.8% better value. The Radeon RX 6400 is the newer GPU (2022 vs 2018).
| Feature | Radeon RX 580 2048SP | Radeon RX 6400 |
|---|---|---|
| MSRP | $229 | $159-31% |
| Avg Price (30d) | $60-57% | $139 |
| Performance per Dollar | 127.2+129% | 55.6 |
| Codename | Polaris 20 | Navi 24 |
| Release | October 15 2018 | January 19 2022 |
| Ranking | #334 | #330 |
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