PowerColor Liquid Devil Radeon RX 6900 XT
vs
SAPPHIRE PULSE RX 550 4G G5 640SP
GPU comparison with benchmarksThe PowerColor Liquid Devil Radeon RX 6900 XT has 5120 shader units and these clock a maximum of 2.37 GHz which results in an FP32 computing power of 24.22 TFLOPS.
The SAPPHIRE PULSE RX 550 4G G5 640SP has 640 shader units and these clock at a maximum of 1.07 GHz and achieve an FP32 computing power of 1.37 TFLOPS. |
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GPUThe PowerColor Liquid Devil Radeon RX 6900 XT is equipped with a graphics chip of the RDNA 2 architecture, which has 80 streaming multiprocessors. The graphics card SAPPHIRE PULSE RX 550 4G G5 640SP is based on the GCN 4 architecture and is equipped with 10 execution units. |
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| PowerColor Liquid Devil Radeon RX 6900 XT | GPU | SAPPHIRE PULSE RX 550 4G G5 640SP |
| AMD Radeon RX 6900 XT | Based on | AMD Radeon RX 550 (Baffin 10 CU) |
| Navi 21 | GPU Chip | Baffin LE |
| RDNA 2 | Architecture | GCN 4 |
| 80 | Streaming Multiprocessors | 10 |
| 5120 | Shader | 640 |
| 128 | Render Output Units | 16 |
| 320 | Texture Units | 40 |
| 80 | Raytracing Cores | 0 |
MemoryThe PowerColor Liquid Devil Radeon RX 6900 XT is equipped with a 16 GB large GDDR6 graphics memory, which is equipped with 2.000 GHz clocks. The SAPPHIRE PULSE RX 550 4G G5 640SP has a 4 GB large GDDR5 graphics memory and the memory clock is 1.500GHz. |
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| 16 GB | Memory Size | 4 GB |
| GDDR6 | Memory Type | GDDR5 |
| 2.000 GHz | Memory Clock | 1.500 GHz |
| 16.0 Gbps | Memory Speed | 6.0 Gbps |
| 512 GB/s | Memory bandwidth | 96 GB/s |
| 256 bit | Memory Interface | 128 bit |
Clock SpeedsThe PowerColor Liquid Devil Radeon RX 6900 XT has a turbo clock of 2.365 GHz. The turbo frequency of the SAPPHIRE PULSE RX 550 4G G5 640SP is 1.071 GHz. |
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| 1.825 GHz | Base Clock | 1.019 GHz |
| 2.365 GHz | Boost Clock | 1.071 GHz |
| 2.14 GHz | Avg (Game) Clock | |
| Yes | Overclocking | Yes |
Thermal DesignThe PowerColor Liquid Devil Radeon RX 6900 XT has 3 x 8-Pin connectors through which it is supplied with power. The manufacturer specifies the maximum operating temperature of the graphics card as 100 °C. The SAPPHIRE PULSE RX 550 4G G5 640SP 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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| 300 W | TDP | 65 W |
| 345 W | TDP (up) | -- |
| 100 °C | Tjunction max | 80 °C |
| 3 x 8-Pin | PCIe-Power | |
Cooler & FansThe graphics processor and graphics memory of the PowerColor Liquid Devil Radeon RX 6900 XT are cooled with a Water cooling. The SAPPHIRE PULSE RX 550 4G G5 640SP is cooled by a Air cooling. |
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| -- | Fan-Type | Axial |
| -- | Fan 1 | 1 x 90 mm |
| -- | Fan 2 | -- |
| Water cooling | Cooler-Type | Air cooling |
| 0 dB | Noise (Idle) | dB |
| 0 dB | Noise (Load) | -- |
ConnectivityThe PowerColor Liquid Devil Radeon RX 6900 XT supports the downward compatible copy protection HDCP in version 2.3. The SAPPHIRE PULSE RX 550 4G G5 640SP supports HDCP in version 2.2 and all previous versions. |
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| 4 | Max. Displays | 4 |
| 2.3 | HDCP-Version | 2.2 |
| 1x HDMI v2.1 | HDMI Ports | 1x HDMI v2.0b |
| 2x DP v1.4a | DP Ports | 1x DP v1.4 |
| -- | DVI Ports | 1 |
| -- | VGA Ports | -- |
| 1 | USB-C Ports | -- |
FeaturesetThe PowerColor Liquid Devil Radeon RX 6900 XT supports the DirectX standard from Microsoft in version 12_2 (Ultimate). The SAPPHIRE PULSE RX 550 4G G5 640SP 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 | Yes |
| Addressable LED | 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 | AV1 | No |
| Decode / Encode | VP8 | Decode |
| Decode / Encode | VP9 | Decode |
DimensionsThe PowerColor Liquid Devil Radeon RX 6900 XT is 42 mm wide and therefore needs the space of 2 PCIe-Slots in the case. The width of the SAPPHIRE PULSE RX 550 4G G5 640SP is 42 mm and thus requires the space of 2 PCIe-Slots in the PC case. |
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| 266 mm | Length | 158 mm |
| 162 mm | Height | 112 mm |
| 42 mm | Width | 28 mm |
| 2 PCIe-Slots | Width (Slots) | 2 PCIe-Slots |
| -- | Weight | -- |
| PCIe 4.0 x 16 | GPU Interface | PCIe 3.0 x 8 |
Additional dataManufactured using the 7 nanometer process, PowerColor Liquid Devil Radeon RX 6900 XT was released in Q2/2021. The SAPPHIRE PULSE RX 550 4G G5 640SP published in Q4/2017 is manufactured with a structure width of 14 nanometers. |
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| AXRX 6900XT 16GBD6-W2DHC/OC | Part-no | 11268-15 |
| Q2/2021 | Release date | Q4/2017 |
| 999 $ (Reference) | Launch Price | 79 $ |
| 7 nm | Structure size | 14 nm |
| data sheet | Documents | data sheet |
1.825 GHz, 16 GB (300 W TDP)
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1.019 GHz, 4 GB (65 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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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 640SP
4 GB GDDR5 |
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Port Royal (Raytracing)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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Speed Way Graphics Score (Raytracing)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 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.
3840x2160 (2160p)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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2560x1440 (1440p)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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1920x1080 (1080p)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 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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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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2560x1440 (1440p)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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1920x1080 (1080p)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 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)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 640SP
4 GB GDDR5 |
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2560x1440 (1440p)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 640SP
4 GB GDDR5 |
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1920x1080 (1080p)
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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 640SP
4 GB GDDR5 |
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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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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 640SP
4 GB GDDR5 |
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Geekbench 6 - Vulkan
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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 640SP
4 GB GDDR5 |
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Geekbench 6 - Metal
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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 640SP
4 GB GDDR5 |
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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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PowerColor Liquid Devil Radeon RX 6900 XT
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 640SP
4 GB GDDR5 |
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