
Radeon 550X vs Radeon HD 7770M

Radeon 550X
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Radeon HD 7770M
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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. The Radeon 550X is positioned at rank 101 and the Radeon HD 7770M is on rank 124, so the Radeon 550X offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon 550X
Performance Per Dollar Radeon HD 7770M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
⚠️ Generational Difference
The Radeon 550X is significantly newer (2019 vs 2012). The Radeon 550X likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon HD 7770M lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.
🚀 Performance Leadership
The Radeon HD 7770M is the superior choice for raw performance. It leads with a 1.7% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon 550X.
| Insight | Radeon 550X | Radeon HD 7770M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.7%) | ✅Leading raw performance (+1.7%) |
| Longevity | GCN 4.0 (2016−2020) (14nm) | 🛑Obsolete Architecture (2012 / GCN 1.0 (2012−2020)) |
| 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
While current pricing data is unavailable, the Radeon HD 7770M remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
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 550X and Radeon HD 7770M

Radeon 550X
The Radeon 550X is manufactured by AMD. It was released in March 27 2019. It features the GCN 4.0 architecture. The core clock ranges from 1082 MHz to 1218 MHz. It has 512 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 1,475 points.

Radeon HD 7770M
The Radeon HD 7770M is manufactured by AMD. It was released in April 24 2012. It features the GCN 1.0 architecture. The core clock speed is 675 MHz. It has 512 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,500 points.
Graphics Performance
The Radeon 550X scores 1,475 and the Radeon HD 7770M reaches 1,500 in the G3D Mark benchmark — just a 1.7% difference, making them near-identical in rasterization performance. The Radeon 550X is built on GCN 4.0 while the Radeon HD 7770M uses GCN 1.0, both on 14 nm vs 28 nm. Shader units: 512 (Radeon 550X) vs 512 (Radeon HD 7770M). Raw compute: 1.247 TFLOPS (Radeon 550X) vs 0.6912 TFLOPS (Radeon HD 7770M).
| Feature | Radeon 550X | Radeon HD 7770M |
|---|---|---|
| G3D Mark Score | 1,475 | 1,500+2% |
| Architecture | GCN 4.0 | GCN 1.0 |
| Process Node | 14 nm | 28 nm |
| Shading Units | 512 | 512 |
| Compute (TFLOPS) | 1.247 TFLOPS+80% | 0.6912 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 32 | 32 |
| L1 Cache | 128 KB | 128 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon 550X | Radeon HD 7770M |
|---|---|---|
| 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 video memory. Bus width: 64-bit vs System. L2 Cache: 512 KB (Radeon 550X) vs 256 KB (Radeon HD 7770M) — the Radeon 550X has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon 550X | Radeon HD 7770M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | Shared |
| Bus Width | 64-bit | System |
| L2 Cache | 512 KB+100% | 256 KB |
Power & Dimensions
The Radeon 550X draws 50W versus the Radeon HD 7770M's 32W — a 43.9% difference. The Radeon HD 7770M is more power-efficient. Recommended PSU: 350W (Radeon 550X) vs 350W (Radeon HD 7770M). Power connectors: None vs 1x 6-pin.
| Feature | Radeon 550X | Radeon HD 7770M |
|---|---|---|
| TDP | 50W | 32W-36% |
| Recommended PSU | 350W | 350W |
| Power Connector | None | 1x 6-pin |
| Perf/Watt | 29.5 | 46.9+59% |
Value Analysis
The Radeon 550X is the newer GPU (2019 vs 2012).
| Feature | Radeon 550X | Radeon HD 7770M |
|---|---|---|
| MSRP | $109 | — |
| Avg Price (30d) | $45 | — |
| Codename | Lexa | Chelsea |
| Release | March 27 2019 | April 24 2012 |
| Ranking | #772 | #794 |
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