Graphics card comparison
Radeon RX 550X vs Radeon 550X 640SP
AMD
Radeon RX 550X
2048 Mb GDDR5
Released 11 Apr 2018
DESKTOP
VS
AMD
Radeon 550X 640SP
4096 Mb GDDR5
Released 11 Apr 2018
DESKTOP
Summary
Reasons to consider the Radeon RX 550X
- Supports Direct3D 12 Async Compute
- Supports FreeSync
- Supports ReLive (allows game streaming/recording with minimum performance penalty)
- Supports TrueAudio
- Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications
Reasons to consider the Radeon 550X 640SP
- Supports Direct3D 12 Async Compute
- Supports FreeSync
- Supports ReLive (allows game streaming/recording with minimum performance penalty)
- Supports TrueAudio
- Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications
Our verdict
No clear winner declared
We have no data to declare a winner at this time.
Specifications
Core configuration
| Radeon RX 550X | Radeon 550X 640SP |
|---|
| GPU Name | Lexa (Lexa PRO
<br>
<span title="Chip code">(215-0904018)</span>) | Lexa (Lexa PRO
<br>
<span title="Chip code">(215-0904018)</span>) |
| Fab Process | 14 nm | 14 nm |
| Die Size | 103 mm² | 103 mm² |
| Transistors | 2,200 million | 2,200 million |
| Shaders | 512 | 640 |
| Compute Units | 8 | 10 |
| Core clock | 1100 MHz | 1019 MHz |
| ROPs | 16 | 16 |
| TMUs | 32 | 40 |
Memory configuration
| Radeon RX 550X | Radeon 550X 640SP |
|---|
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128 bit | 64 bit |
| Memory Speed | 1750 MHz
7000 MHz effective | 1500 MHz
6000 MHz effective |
| Memory Size | 2048 Mb | 4096 Mb |
Additional details
| Radeon RX 550X | Radeon 550X 640SP |
|---|
| TDP | 50 watts | 50 watts |
| Release Date | 11 Apr 2018 | 11 Apr 2018 |
Raw performance comparison
Pixel Rate
- Radeon RX 550X18.93 GP/s
- Radeon 550X 640SP17.14 GP/s
GigaPixels - higher is better
Texel Rate
- Radeon RX 550X37.86 GT/s
- Radeon 550X 640SP42.84 GT/s
GigaTexels - higher is better
Memory bandwidth
- Radeon RX 550X112.00 GB/s
- Radeon 550X 640SP48.00 GB/s
GB/s - higher is better
Single precision performance
- Radeon RX 550X1211.00 GFLOPs
- Radeon 550X 640SP1371.00 GFLOPs
GFLOPs - higher is better