SAPPHIRE PULSE Radeon RX 7900 XT
vs
PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile
GPU comparison with benchmarksThe SAPPHIRE PULSE Radeon RX 7900 XT has 5376 shader units and these clock a maximum of 2.45 GHz which results in an FP32 computing power of 52.69 TFLOPS.
The PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile has 512 shader units and these clock at a maximum of 1.07 GHz and achieve an FP32 computing power of 1.10 TFLOPS. |
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GPUThe SAPPHIRE PULSE Radeon RX 7900 XT is equipped with a graphics chip of the RDNA 3 architecture, which has 84 streaming multiprocessors. The graphics card PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile is based on the GCN 4 architecture and is equipped with 8 execution units. |
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| SAPPHIRE PULSE Radeon RX 7900 XT | GPU | PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile |
| AMD Radeon RX 7900 XT | Based on | AMD Radeon RX 550 (Baffin 8 CU) |
| Navi 31 | GPU Chip | Baffin LE |
| RDNA 3 | Architecture | GCN 4 |
| 84 | Streaming Multiprocessors | 8 |
| 5376 | Shader | 512 |
| 192 | Render Output Units | 16 |
| 336 | Texture Units | 32 |
| 84 | Raytracing Cores | 0 |
MemoryThe SAPPHIRE PULSE Radeon RX 7900 XT is equipped with a 20 GB large GDDR6 graphics memory, which is equipped with 2.500 GHz clocks. The PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile has a 2 GB large GDDR5 graphics memory and the memory clock is 1.500GHz. |
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| 20 GB | Memory Size | 2 GB |
| GDDR6 | Memory Type | GDDR5 |
| 2.500 GHz | Memory Clock | 1.500 GHz |
| 20.0 Gbps | Memory Speed | 6.0 Gbps |
| 800 GB/s | Memory bandwidth | 48 GB/s |
| 320 bit | Memory Interface | 64 bit |
Clock SpeedsThe SAPPHIRE PULSE Radeon RX 7900 XT has a turbo clock of 2.450 GHz. The turbo frequency of the PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile is 1.071 GHz. |
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| 1.500 GHz | Base Clock | 1.019 GHz |
| 2.450 GHz | Boost Clock | 1.071 GHz |
| 2.08 GHz | Avg (Game) Clock | |
| Yes | Overclocking | Yes |
Thermal DesignThe SAPPHIRE PULSE Radeon RX 7900 XT has 2 x 8-Pin connectors through which it is supplied with power. The manufacturer specifies the maximum operating temperature of the graphics card as 97 °C. The PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile is equipped with a PCIe power connector that supplies it with power. The maximum operating temperature of the card is 80 °C. |
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| 331 W | TDP | 50 W |
| -- | TDP (up) | -- |
| 97 °C | Tjunction max | 80 °C |
| 2 x 8-Pin | PCIe-Power | |
Cooler & FansThe graphics processor and graphics memory of the SAPPHIRE PULSE Radeon RX 7900 XT are cooled with a Air cooling. The PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile is cooled by a Air cooling. |
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| Axial | Fan-Type | Radial |
| 3 x 90 mm | Fan 1 | 1 x 65 mm |
| -- | Fan 2 | -- |
| Air cooling | Cooler-Type | Air cooling |
| 0 dB | Noise (Idle) | dB |
| -- | Noise (Load) | -- |
ConnectivityThe SAPPHIRE PULSE Radeon RX 7900 XT supports the downward compatible copy protection HDCP in version 2.3. The PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile supports HDCP in version 2.2 and all previous versions. |
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| 4 | Max. Displays | 4 |
| 2.3 | HDCP-Version | 2.2 |
| 2x HDMI v2.1 | HDMI Ports | 1x HDMI v2.0b |
| 2x DP v2.1 | DP Ports | -- |
| -- | DVI Ports | 1 |
| -- | VGA Ports | -- |
| -- | USB-C Ports | -- |
FeaturesetThe SAPPHIRE PULSE Radeon RX 7900 XT supports the DirectX standard from Microsoft in version 12_2 (Ultimate). The PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile supports Microsoft's DirectX version 12. |
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| 7680x4320 | Max. resolution | 5120x2880 |
| 12_2 (Ultimate) | DirectX | 12 |
| Yes | Raytracing | No |
| Yes | DLSS / FSR | No |
| No LED lighting | LED | No LED lighting |
Supported Video CodecsThis area lists which video codecs can be decoded or encoded by the graphics cards in hardware. As a result, the power consumption can be reduced due to a lower processor load. |
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| Decode / Encode | h264 | Decode / Encode |
| Decode / Encode | h265 / HEVC | Decode / Encode |
| Decode / Encode | AV1 | No |
| Decode / Encode | VP8 | Decode |
| Decode / Encode | VP9 | Decode |
DimensionsThe SAPPHIRE PULSE Radeon RX 7900 XT is 53 mm wide and therefore needs the space of 1 PCIe-Slots in the case. The width of the PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile is 53 mm and thus requires the space of 1 PCIe-Slots in the PC case. |
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| 313 mm | Length | 181 mm |
| 134 mm | Height | 79 mm |
| 53 mm | Width | 20 mm |
| 3 PCIe-Slots | Width (Slots) | 1 PCIe-Slots |
| -- | Weight | -- |
| PCIe 4 x 16 | GPU Interface | PCIe 3.0 x 8 |
Additional dataManufactured using the 5 nanometer process, SAPPHIRE PULSE Radeon RX 7900 XT was released in Q4/2022. The PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile published in Q4/2017 is manufactured with a structure width of 14 nanometers. |
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| 11323-02-20G | Part-no | AXRX 550 2GBD5-HLE |
| Q4/2022 | Release date | Q4/2017 |
| 899 $ (Reference) | Launch Price | 79 $ |
| 5 nm | Structure size | 14 nm |
| data sheet | Documents | data sheet |
1.500 GHz, 20 GB (331 W TDP)
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1.019 GHz, 2 GB (50 W TDP)
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Benchmark results
3DMark Benchmark (DirectX, Raytracing)
3DMark is a benchmark program that determines the performance of certain components of a computer and then reports the performance as a numerical value.
Time Spy Extreme Graphics score
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile
2 GB GDDR5 |
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Port Royal (Raytracing)
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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Speed Way Graphics Score (Raytracing)
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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Cyberpunk 2077
Cyberpunk 2077 was developed by CD Projekt Red and is based on the development studio's own REDengine 4. Ray tracing is switched off in our benchmarks.
2560x1440 (1440p)
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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The Last of Us Part 1
The Last of Us Part One is a game released by Sony in June 2013 exclusively for the Playstation and released for the PC in early 2023. The benchmark values here were determined at high details.
3840x2160 (2160p)
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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2560x1440 (1440p)
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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1920x1080 (1080p)
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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Battlefield 5
Battlefield 5 is a visually stunning game that is ideal as a graphics card benchmark. We test the game with maximum details on Windows 10.
3840x2160 (2160p)
2560x1440 (1440p)
1920x1080 (1080p)
Geekbench 6 (OpenCL, Vulkan, Metal)
Geekbench 6 is a cross-platform benchmark for main processors, which also carries out 3 different graphics benchmarks and outputs them in the form of a numerical value.
Geekbench 6 - OpenCL
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile
2 GB GDDR5 |
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Geekbench 6 - Vulkan
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile
2 GB GDDR5 |
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Geekbench 6 - Metal
FP32 Performance (Single-precision TFLOPS)
The theoretical computing power of the graphics card with single precision (32 bit) in TFLOPS indicates how many trillion FP32 floating point operations the graphics card (GPU) can perform per second.
FP32 (TFLOPS)
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SAPPHIRE PULSE Radeon RX 7900 XT
20 GB GDDR6 |
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PowerColor Red Dragon Radeon RX 550 2GB GDDR5 Low Profile
2 GB GDDR5 |
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