QTHREE Radeon RX 550 4GB GDDR5
Sapphire Radeon RX 7900 XTX PULSE 24GB GDDR6 Black
What Buyers Say
QTHREE Radeon RX 550 4GB GDDR5
This budget-friendly graphics card is a great fit for upgrading older small form factor PCs, with several verified 5-star reviews praising its multi-monitor support and plug-and-play ease on Linux. However, a few serious issues stand out: one verified buyer got repeated blue-screen lockups, the fan speed sensor is non-functional on another unit, and the lack of a driver disc forces users to hunt down updates online. Overall, it is a capable low-end card for light gaming and office work, but reliability and support documentation are hit-or-miss.
Pros
- Excellent multi-monitor support up to 3 displays
- Plays Minecraft and Roblox smoothly on i5-8500
- Easy plug-and-play installation on Linux
- Great for reviving older small form factor PCs
- Works well for light gaming and office tasks
Cons
- Causes BitLocker blue screen lockups on some systems
- Fan speed sensor does not work or show readings
- No driver disc included in package
- Requires bracket modification for VGA in small cases
- Does not support Meta VR headsets
Sapphire Radeon RX 7900 XTX PULSE 24GB GDDR6 Black
The Sapphire Pulse RX 7900 XTX is widely praised for its excellent price-to-performance ratio, offering massive 24GB VRAM and strong rasterization that rivals the RTX 4080 at a much lower cost. Users highlight its cool and quiet operation, though some note it runs hot in cases with poor airflow and requires a high-wattage PSU (800W minimum, 1000W recommended). A few negative reviews mention receiving a wrong item (keyboard instead of GPU) or driver issues that were resolved by upgrading other PC components. Overall, it's considered a beast for gaming and 3D work, but not ideal for eGPU setups.
Pros
- Excellent price-to-performance ratio
- Massive 24GB VRAM
- Cool and quiet operation
- Strong rasterization performance
- Great for gaming and 3D work
Cons
- Requires high-wattage PSU (800W min, 1000W recommended)
- Runs hot in cases with poor airflow
- Power spikes up to 400W
- Not ideal for eGPU setups
- Driver issues reported (resolved with system upgrades)
Scores
Specifications
| QTHREE Radeon RX 550 | Sapphire Radeon RX 7900 XTX PULSE | |
|---|---|---|
| Chipset | ||
| GPU Chipset | Radeon RX 550 | Radeon RX 7900 XTX |
| Brand | AMD | AMD |
| Architecture | Polaris | RDNA 3 |
| Class | consumer | consumer |
| Process | 14 | 5★ |
| Memory | ||
| VRAM | 4 GB | 24 GB★ |
| Memory Type | GDDR5 | GDDR6★ |
| Memory Bus | ||
| Bandwidth | No data | |
| ECC | — | ✗ |
| Compute | ||
| Stream Processors | ||
| Tensor Cores | No data | |
| RT Cores | — | 96★ |
| Base Clock | ||
| Boost Clock | ||
| FP16 TFLOPS | No data | |
| FP32 TFLOPS | — | 61.38999938964844★ |
| Performance | ||
| PassMark G3D | ||
| GPU Compute | ||
| Power & Cooling | ||
| TDP | 50★ | 370 |
| Recommended PSU | 450★ | 800 |
| Power Connectors | None | 3 x 8-Pin |
| Cooler | Single Fan | Triple Fan★ |
| Fans | 1 | 3★ |
| Connectivity | ||
| Interface | PCI Express 3.0 x8 | PCI Express 4.0 x16 |
| DisplayPort | 0 | 2★ |
| HDMI | 1 | 2★ |
| USB-C | 0★ | — |
| Max Displays | 3 | 4★ |
| Max Resolution | 4096x2160 | 7680 x 4320 |
| Physical | ||
| Length | 170★ | 313 |
| Slot Width | 2★ | 3 |
| Form Factor | Low Profile | ATX |
| Weight | 0.33 kg★ | 1.95 kg |
| Features | ||
| Ray Tracing | ✗ | ✓★ |
| Upscaling | — | FSR |
| AV1 Encode | — | ✓★ |
| VR Ready | — | ✓★ |
| DirectX | 12 | 12 Ultimate |
| RGB | — | ✓★ |
Pros & Cons
QTHREE Radeon RX 550 4GB GDDR5
- Strong affordability (89th percentile)89th %ile
- Below average compute (4th percentile)4th %ile
- Below average feature (11th percentile)11th %ile
- Below average rt (12th percentile)12th %ile
- Below average ai (13th percentile)13th %ile
Sapphire Radeon RX 7900 XTX PULSE 24GB GDDR6 Black
- Strong feature (96th percentile)96th %ile
- Strong rt (96th percentile)96th %ile
- Strong compute (96th percentile)96th %ile
- Strong ai (95th percentile)95th %ile
- Below average affordability (18th percentile)18th %ile
Verdict
Scores 90 overall, wins 8 of 8 usage categories and 23 of 40 specs.