PowerColor Liquid Devil Radeon RX 6900 XT Ultimate
vs
PowerColor Radeon RX Vega 56 Red Devil
GPU comparison with benchmarksThe PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is based on the AMD Radeon RX 6900 XT (RDNA 2) and has 16 GB GDDR6 graphics memory with a bandwidth of 512 GB/s.
The PowerColor Radeon RX Vega 56 Red Devil is based on the AMD RX Vega 56 (GCN 5) and has 8 GB HBM2 graphics memory with a bandwidth of 410 GB/s. |
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GPUThe PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has the Navi 21 graphics chip installed, which is based on the RDNA 2 architecture. The PowerColor Radeon RX Vega 56 Red Devil is based on the graphics chip Vega 10 XL, which comes from the GCN 5 architecture. |
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| PowerColor Liquid Devil Radeon RX 6900 XT Ultimate | GPU | PowerColor Radeon RX Vega 56 Red Devil |
| AMD Radeon RX 6900 XT | Based on | AMD RX Vega 56 |
| Navi 21 | GPU Chip | Vega 10 XL |
| RDNA 2 | Architecture | GCN 5 |
| 80 | Streaming Multiprocessors | 56 |
| 5120 | Shader | 3584 |
| 128 | Render Output Units | 64 |
| 320 | Texture Units | 256 |
| 80 | Raytracing Cores | 0 |
MemoryThe graphics memory of the PowerColor Liquid Devil Radeon RX 6900 XT Ultimate clocks at 2.000 GHz, which corresponds to a speed of 16.0 Gbps. The graphics memory speed of the PowerColor Radeon RX Vega 56 Red Devil is 1.6 Gbps and the clock speed is 0.800 GHz. |
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| 16 GB | Memory Size | 8 GB |
| GDDR6 | Memory Type | HBM2 |
| 2.000 GHz | Memory Clock | 0.800 GHz |
| 16.0 Gbps | Memory Speed | 1.6 Gbps |
| 512 GB/s | Memory bandwidth | 410 GB/s |
| 256 bit | Memory Interface | 2048 bit |
Clock SpeedsThe clock frequency of a graphics card determines the speed in connection with the graphics architecture. |
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| 1.825 GHz | Base Clock | 1.308 GHz |
| 2.525 GHz | Boost Clock | 1.526 GHz |
| 2.38 GHz | Avg (Game) Clock | |
| Yes | Overclocking | Yes |
Thermal DesignThe PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is powered by 3 x 8-Pin connectors. The TDP (Thermal Design Power) of the graphics card is 300 W. The PowerColor Radeon RX Vega 56 Red Devil has 2 x 8-Pin PCIe power connectors that supply it with energy. The manufacturer specifies the TDP of the card as 210 W. |
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| 300 W | TDP | 210 W |
| 345 W | TDP (up) | -- |
| 100 °C | Tjunction max | 100 °C |
| 3 x 8-Pin | PCIe-Power | 2 x 8-Pin |
Cooler & FansThe PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is equipped with a total of 0 -- main fans. The PowerColor Radeon RX Vega 56 Red Devil has 3 Axial main fans that cool the GPU and memory. |
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| -- | Fan-Type | Axial |
| -- | Fan 1 | 3 x 90 mm |
| -- | Fan 2 | -- |
| Water cooling | Cooler-Type | Air cooling |
| 0 dB | Noise (Idle) | dB |
| 0 dB | Noise (Load) | -- |
ConnectivityUp to 4 screens can be operated with the PowerColor Liquid Devil Radeon RX 6900 XT Ultimate. The PowerColor Radeon RX Vega 56 Red Devil supports the operation of a maximum of 4 monitors. |
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| 4 | Max. Displays | 4 |
| 2.3 | HDCP-Version | -- |
| 1x HDMI v2.1 | HDMI Ports | 2x HDMI v2.0b |
| 2x DP v1.4a | DP Ports | 2x DP v1.4 |
| -- | DVI Ports | -- |
| -- | VGA Ports | -- |
| 1 | USB-C Ports | -- |
FeaturesetWith the PowerColor Liquid Devil Radeon RX 6900 XT Ultimate it is possible to operate a screen with a maximum resolution of up to 7680x4320 pixels. The maximum supported resolution of the PowerColor Radeon RX Vega 56 Red Devil is 7680x4320 pixels. |
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| 7680x4320 | Max. resolution | 7680x4320 |
| 12_2 (Ultimate) | DirectX | 12_1 |
| Yes | Raytracing | No |
| Yes | DLSS / FSR | Yes |
| Addressable LED | LED | No LED lighting |
Supported Video CodecsThe support and acceleration of certain video codecs can have a positive impact on the lower energy consumption and less waste heat from the graphics card. |
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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 / Encode |
DimensionsThe PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is connected to the system via PCIe 4.0 x 16 lanes and requires 2 PCIe-Slots space in the housing. The PowerColor Radeon RX Vega 56 Red Devil needs the space of 3 PCIe-Slots in the case and has a PCIe 3.0 x 16 Lanes interface. |
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| 266 mm | Length | 316 mm |
| 162 mm | Height | 150 mm |
| 42 mm | Width | 55 mm |
| 2 PCIe-Slots | Width (Slots) | 3 PCIe-Slots |
| -- | Weight | -- |
| PCIe 4.0 x 16 | GPU Interface | PCIe 3.0 x 16 |
Additional dataThe PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has been manufactured with a structure width of 7 nanometers since Q2/2021. The PowerColor Radeon RX Vega 56 Red Devil came on the market in Q3/2017 and will have a structure width of 14 nanometers manufactured. |
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| AXRX 6900XTU 16GBD6-W2DHC/OC | Part-no | AXRX VEGA 56 8GBHBM2-2D2HD/OC |
| Q2/2021 | Release date | Q3/2017 |
| 999 $ (Reference) | Launch Price | 399 $ (Reference) |
| 7 nm | Structure size | 14 nm |
| data sheet | Documents | data sheet |
1.825 GHz, 16 GB (300 W TDP)
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1.308 GHz, 8 GB (210 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 Ultimate
16 GB GDDR6 |
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PowerColor Radeon RX Vega 56 Red Devil
8 GB HBM2 |
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Port Royal (Raytracing)
Speed Way Graphics Score (Raytracing)
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)
2560x1440 (1440p)
1920x1080 (1080p)
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)
2560x1440 (1440p)
1920x1080 (1080p)
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 Ultimate
16 GB GDDR6 |
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PowerColor Radeon RX Vega 56 Red Devil
8 GB HBM2 |
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2560x1440 (1440p)
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PowerColor Liquid Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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PowerColor Radeon RX Vega 56 Red Devil
8 GB HBM2 |
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1920x1080 (1080p)
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PowerColor Liquid Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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PowerColor Radeon RX Vega 56 Red Devil
8 GB HBM2 |
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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 Ultimate
16 GB GDDR6 |
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PowerColor Radeon RX Vega 56 Red Devil
8 GB HBM2 |
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Geekbench 6 - Vulkan
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PowerColor Liquid Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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PowerColor Radeon RX Vega 56 Red Devil
8 GB HBM2 |
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Geekbench 6 - Metal
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PowerColor Liquid Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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PowerColor Radeon RX Vega 56 Red Devil
8 GB HBM2 |
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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 Ultimate
16 GB GDDR6 |
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PowerColor Radeon RX Vega 56 Red Devil
8 GB HBM2 |
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