ASUS Radeon RX 550 4GB
vs
SAPPHIRE Pulse Radeon RX 6400
GPU comparison with benchmarksThe ASUS Radeon RX 550 4GB has 512 shader units and these clock a maximum of 1.18 GHz which results in an FP32 computing power of 1.21 TFLOPS.
The SAPPHIRE Pulse Radeon RX 6400 has 768 shader units and these clock at a maximum of 2.32 GHz and achieve an FP32 computing power of 3.57 TFLOPS. |
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GPUThe ASUS Radeon RX 550 4GB is equipped with a graphics chip of the GCN 4 architecture, which has 8 streaming multiprocessors. The graphics card SAPPHIRE Pulse Radeon RX 6400 is based on the RDNA 2 architecture and is equipped with 12 execution units. |
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| ASUS Radeon RX 550 4GB | GPU | SAPPHIRE Pulse Radeon RX 6400 |
| AMD Radeon RX 550 (Lexa) | Based on | AMD Radeon RX 6400 |
| Lexa PRO | GPU Chip | Navi 24 XL |
| GCN 4 | Architecture | RDNA 2 |
| 8 | Streaming Multiprocessors | 12 |
| 512 | Shader | 768 |
| 16 | Render Output Units | 32 |
| 32 | Texture Units | 48 |
| 0 | Raytracing Cores | 12 |
MemoryThe ASUS Radeon RX 550 4GB is equipped with a 4 GB large GDDR5 graphics memory, which is equipped with 1.750 GHz clocks. The SAPPHIRE Pulse Radeon RX 6400 has a 4 GB large GDDR6 graphics memory and the memory clock is 2.000GHz. |
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| 4 GB | Memory Size | 4 GB |
| GDDR5 | Memory Type | GDDR6 |
| 1.750 GHz | Memory Clock | 2.000 GHz |
| 7.0 Gbps | Memory Speed | 16.0 Gbps |
| 112 GB/s | Memory bandwidth | 128 GB/s |
| 128 bit | Memory Interface | 64 bit |
Clock SpeedsThe ASUS Radeon RX 550 4GB has a turbo clock of 1.183 GHz. The turbo frequency of the SAPPHIRE Pulse Radeon RX 6400 is 2.321 GHz. |
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| 1.100 GHz | Base Clock | 1.923 GHz |
| 1.183 GHz | Boost Clock | 2.321 GHz |
| Avg (Game) Clock | 2.04 GHz | |
| Yes | Overclocking | Yes |
Thermal DesignThe ASUS Radeon RX 550 4GB has connectors through which it is supplied with power. The manufacturer specifies the maximum operating temperature of the graphics card as 80 °C. The SAPPHIRE Pulse Radeon RX 6400 is equipped with a PCIe power connector that supplies it with power. The maximum operating temperature of the card is 97 °C. |
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| 50 W | TDP | 55 W |
| -- | TDP (up) | -- |
| 80 °C | Tjunction max | 97 °C |
| PCIe-Power | ||
Cooler & FansThe graphics processor and graphics memory of the ASUS Radeon RX 550 4GB are cooled with a Air cooling. The SAPPHIRE Pulse Radeon RX 6400 is cooled by a Air cooling. |
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| Axial | Fan-Type | Axial |
| 1 x 80 mm | Fan 1 | 1 x 50 mm |
| -- | Fan 2 | -- |
| Air cooling | Cooler-Type | Air cooling |
| dB | Noise (Idle) | 0 dB |
| -- | Noise (Load) | -- |
ConnectivityThe ASUS Radeon RX 550 4GB supports the downward compatible copy protection HDCP in version 2.2. The SAPPHIRE Pulse Radeon RX 6400 supports HDCP in version 2.3 and all previous versions. |
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| 4 | Max. Displays | 2 |
| 2.2 | HDCP-Version | 2.3 |
| 1x HDMI v2.0b | HDMI Ports | 1x HDMI v2.1 |
| 1x DP v1.4 | DP Ports | 1x DP v1.4a |
| 1 | DVI Ports | -- |
| -- | VGA Ports | -- |
| -- | USB-C Ports | -- |
FeaturesetThe ASUS Radeon RX 550 4GB supports the DirectX standard from Microsoft in version 12. The SAPPHIRE Pulse Radeon RX 6400 supports Microsoft's DirectX version 12_2 (Ultimate). |
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| 5120x2880 | Max. resolution | 7680x4320 |
| 12 | DirectX | 12_2 (Ultimate) |
| No | Raytracing | Yes |
| Yes | DLSS / FSR | Yes |
| 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 |
| No | AV1 | Decode |
| Decode | VP8 | Decode / Encode |
| Decode | VP9 | Decode / Encode |
DimensionsThe ASUS Radeon RX 550 4GB is 43 mm wide and therefore needs the space of 1 PCIe-Slots in the case. The width of the SAPPHIRE Pulse Radeon RX 6400 is 43 mm and thus requires the space of 1 PCIe-Slots in the PC case. |
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| 182 mm | Length | 170 mm |
| 112 mm | Height | 56 mm |
| 43 mm | Width | 17 mm |
| 2 PCIe-Slots | Width (Slots) | 1 PCIe-Slots |
| -- | Weight | -- |
| PCIe 3.0 x 8 | GPU Interface | PCIe 4.0 x 4 |
Additional dataManufactured using the 14 nanometer process, ASUS Radeon RX 550 4GB was released in Q2/2017. The SAPPHIRE Pulse Radeon RX 6400 published in Q2/2022 is manufactured with a structure width of 6 nanometers. |
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| RX550-4G | Part-no | 11315-01-20G |
| Q2/2017 | Release date | Q2/2022 |
| 79 $ (Reference) | Launch Price | 159 $ (Reference) |
| 14 nm | Structure size | 6 nm |
| data sheet | Documents | data sheet |
1.100 GHz, 4 GB (50 W TDP)
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1.923 GHz, 4 GB (55 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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ASUS Radeon RX 550 4GB
4 GB GDDR5 |
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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Port Royal (Raytracing)
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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Speed Way Graphics Score (Raytracing)
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SAPPHIRE Pulse Radeon RX 6400
4 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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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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2560x1440 (1440p)
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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1920x1080 (1080p)
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SAPPHIRE Pulse Radeon RX 6400
4 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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ASUS Radeon RX 550 4GB
4 GB GDDR5 |
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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2560x1440 (1440p)
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ASUS Radeon RX 550 4GB
4 GB GDDR5 |
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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1920x1080 (1080p)
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ASUS Radeon RX 550 4GB
4 GB GDDR5 |
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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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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ASUS Radeon RX 550 4GB
4 GB GDDR5 |
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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Geekbench 6 - Vulkan
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ASUS Radeon RX 550 4GB
4 GB GDDR5 |
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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Geekbench 6 - Metal
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ASUS Radeon RX 550 4GB
4 GB GDDR5 |
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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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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ASUS Radeon RX 550 4GB
4 GB GDDR5 |
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SAPPHIRE Pulse Radeon RX 6400
4 GB GDDR6 |
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