ASRock Radeon RX 6400 Challenger ITX 4GB
vs
ASUS Phoenix Radeon RX 550 2G EVO
GPU comparison with benchmarksIn the gpu comparison between the ASRock Radeon RX 6400 Challenger ITX 4GB and the ASUS Phoenix Radeon RX 550 2G EVO, we compare both the technical data and the benchmark results of the two graphics cards.
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GPUThe ASRock Radeon RX 6400 Challenger ITX 4GB is based on the AMD Radeon RX 6400 and has 768 texture shaders and 12 execution units. ASUS Phoenix Radeon RX 550 2G EVO is based on AMD Radeon RX 550 (Lexa), which has 512 shaders and 8 execution units. |
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| ASRock Radeon RX 6400 Challenger ITX 4GB | GPU | ASUS Phoenix Radeon RX 550 2G EVO |
| AMD Radeon RX 6400 | Based on | AMD Radeon RX 550 (Lexa) |
| Navi 24 XL | GPU Chip | Lexa PRO |
| RDNA 2 | Architecture | GCN 4 |
| 12 | Streaming Multiprocessors | 8 |
| 768 | Shader | 512 |
| 32 | Render Output Units | 16 |
| 48 | Texture Units | 32 |
| 12 | Raytracing Cores | 0 |
MemoryThe ASRock Radeon RX 6400 Challenger ITX 4GB has 4 GB of graphics memory of the type GDDR6 and achieves a memory bandwidth of 128 GB/s. The ASUS Phoenix Radeon RX 550 2G EVO can access 2 GB GDDR5 graphics memory and thus achieves a memory bandwidth of 96 GB/s. |
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| 4 GB | Memory Size | 2 GB |
| GDDR6 | Memory Type | GDDR5 |
| 2.000 GHz | Memory Clock | 1.500 GHz |
| 16.0 Gbps | Memory Speed | 6.0 Gbps |
| 128 GB/s | Memory bandwidth | 96 GB/s |
| 64 bit | Memory Interface | 128 bit |
Clock SpeedsThe ASRock Radeon RX 6400 Challenger ITX 4GB clocks in the base with up to 1.923 GHz. The base frequency of the ASUS Phoenix Radeon RX 550 2G EVO is 1.100 GHz. |
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| 1.923 GHz | Base Clock | 1.100 GHz |
| 2.321 GHz | Boost Clock | 1.183 GHz |
| 2.04 GHz | Avg (Game) Clock | |
| Yes | Overclocking | Yes |
Thermal DesignThe TDP (Thermal Design Power) of the ASRock Radeon RX 6400 Challenger ITX 4GB is 53 W. The graphics card is supplied with energy via the connector. The ASUS Phoenix Radeon RX 550 2G EVO has a TDP of 50 W and is supplied with the required energy via PCIe power connectors. |
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| 53 W | TDP | 50 W |
| -- | TDP (up) | -- |
| 97 °C | Tjunction max | 80 °C |
| PCIe-Power | ||
Cooler & FansThe ASRock Radeon RX 6400 Challenger ITX 4GB has a total of 1 Axial fans. The ASUS Phoenix Radeon RX 550 2G EVO has 1 Axial fans to cool the GPU and memory. |
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| Axial | Fan-Type | Axial |
| 1 x 80 mm | Fan 1 | 1 x 80 mm |
| -- | Fan 2 | -- |
| Air cooling | Cooler-Type | Air cooling |
| 0 dB | Noise (Idle) | dB |
| -- | Noise (Load) | -- |
ConnectivityIn the connectivity category, we recorded the number of ports on a graphics card. A total of 2 screens can be connected to the ASRock Radeon RX 6400 Challenger ITX 4GB. The ASUS Phoenix Radeon RX 550 2G EVO supports a maximum of 4 screens. |
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| 2 | Max. Displays | 4 |
| 2.3 | HDCP-Version | 2.2 |
| 1x HDMI v2.1 | HDMI Ports | 1x HDMI v2.0b |
| 1x DP v1.4a | DP Ports | 1x DP v1.4 |
| -- | DVI Ports | 1 |
| -- | VGA Ports | -- |
| -- | USB-C Ports | -- |
FeaturesetThe ASRock Radeon RX 6400 Challenger ITX 4GB supports a maximum resolution of 7680x4320 pixels. The maximum resolution of the ASUS Phoenix Radeon RX 550 2G EVO is 5120x2880 pixels. |
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| 7680x4320 | Max. resolution | 5120x2880 |
| 12_2 (Ultimate) | DirectX | 12 |
| Yes | Raytracing | No |
| Yes | DLSS / FSR | Yes |
| No LED lighting | LED | No LED lighting |
Supported Video CodecsThe support and acceleration of certain video codecs directly in the graphics card reduces the load when playing or creating videos. |
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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 ASRock Radeon RX 6400 Challenger ITX 4GB is 162 mm long, 112 mm high and 39 mm wide. The ASUS Phoenix Radeon RX 550 2G EVO is 192 mm long, 115 mm high and 39 mm wide. |
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| 162 mm | Length | 192 mm |
| 112 mm | Height | 115 mm |
| 39 mm | Width | 39 mm |
| 2 PCIe-Slots | Width (Slots) | 2 PCIe-Slots |
| 275 g | Weight | -- |
| PCIe 4.0 x 4 | GPU Interface | PCIe 3.0 x 8 |
Additional dataThe ASRock Radeon RX 6400 Challenger ITX 4GB was released in Q2/2022 at a price of 159 $ (Reference). The ASUS Phoenix Radeon RX 550 2G EVO was introduced in Q2/2017 at a price of 79 $ (Reference). |
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| RX6400 CLI 4G | Part-no | PH-RX550-2G-EVO |
| Q2/2022 | Release date | Q2/2017 |
| 159 $ (Reference) | Launch Price | 79 $ (Reference) |
| 6 nm | Structure size | 14 nm |
| data sheet | Documents | data sheet |
1.923 GHz, 4 GB (53 W TDP)
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1.100 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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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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ASUS Phoenix Radeon RX 550 2G EVO
2 GB GDDR5 |
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Port Royal (Raytracing)
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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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Speed Way Graphics Score (Raytracing)
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ASRock Radeon RX 6400 Challenger ITX 4GB
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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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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2560x1440 (1440p)
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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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1920x1080 (1080p)
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ASRock Radeon RX 6400 Challenger ITX 4GB
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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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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ASUS Phoenix Radeon RX 550 2G EVO
2 GB GDDR5 |
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2560x1440 (1440p)
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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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ASUS Phoenix Radeon RX 550 2G EVO
2 GB GDDR5 |
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1920x1080 (1080p)
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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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ASUS Phoenix Radeon RX 550 2G EVO
2 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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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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ASUS Phoenix Radeon RX 550 2G EVO
2 GB GDDR5 |
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Geekbench 6 - Vulkan
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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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ASUS Phoenix Radeon RX 550 2G EVO
2 GB GDDR5 |
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Geekbench 6 - Metal
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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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ASUS Phoenix Radeon RX 550 2G EVO
2 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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ASRock Radeon RX 6400 Challenger ITX 4GB
4 GB GDDR6 |
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ASUS Phoenix Radeon RX 550 2G EVO
2 GB GDDR5 |
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