ASUS ROG Strix Radeon RX Vega 56 OC Gaming
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ASRock Radeon RX 6600 XT Challenger Pro 8GB OC
GPU comparison with benchmarksThe ASUS ROG Strix Radeon RX Vega 56 OC Gaming is based on the AMD RX Vega 56 (GCN 5) and has 8 GB HBM2 graphics memory with a bandwidth of 410 GB/s.
The ASRock Radeon RX 6600 XT Challenger Pro 8GB OC is based on the AMD Radeon RX 6600 XT (RDNA 2) and has 8 GB GDDR6 graphics memory with a bandwidth of 256 GB/s. |
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GPUThe ASUS ROG Strix Radeon RX Vega 56 OC Gaming has the Vega 10 XL graphics chip installed, which is based on the GCN 5 architecture. The ASRock Radeon RX 6600 XT Challenger Pro 8GB OC is based on the graphics chip Navi 23 XT, which comes from the RDNA 2 architecture. |
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| ASUS ROG Strix Radeon RX Vega 56 OC Gaming | GPU | ASRock Radeon RX 6600 XT Challenger Pro 8GB OC |
| AMD RX Vega 56 | Based on | AMD Radeon RX 6600 XT |
| Vega 10 XL | GPU Chip | Navi 23 XT |
| GCN 5 | Architecture | RDNA 2 |
| 56 | Streaming Multiprocessors | 32 |
| 3584 | Shader | 2048 |
| 64 | Render Output Units | 64 |
| 256 | Texture Units | 128 |
| 0 | Raytracing Cores | 32 |
MemoryThe graphics memory of the ASUS ROG Strix Radeon RX Vega 56 OC Gaming clocks at 0.800 GHz, which corresponds to a speed of 1.6 Gbps. The graphics memory speed of the ASRock Radeon RX 6600 XT Challenger Pro 8GB OC is 16.0 Gbps and the clock speed is 2.000 GHz. |
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| 8 GB | Memory Size | 8 GB |
| HBM2 | Memory Type | GDDR6 |
| 0.800 GHz | Memory Clock | 2.000 GHz |
| 1.6 Gbps | Memory Speed | 16.0 Gbps |
| 410 GB/s | Memory bandwidth | 256 GB/s |
| 2048 bit | Memory Interface | 128 bit |
Clock SpeedsThe clock frequency of a graphics card determines the speed in connection with the graphics architecture. |
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| 1.297 GHz | Base Clock | 2.033 GHz |
| 1.573 GHz | Boost Clock | 2.602 GHz |
| Avg (Game) Clock | 2.41 GHz | |
| Yes | Overclocking | Yes |
Thermal DesignThe ASUS ROG Strix Radeon RX Vega 56 OC Gaming is powered by 2 x 8-Pin connectors. The TDP (Thermal Design Power) of the graphics card is 300 W. The ASRock Radeon RX 6600 XT Challenger Pro 8GB OC has 1 x 8-Pin PCIe power connectors that supply it with energy. The manufacturer specifies the TDP of the card as 160 W. |
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| 300 W | TDP | 160 W |
| -- | TDP (up) | -- |
| 100 °C | Tjunction max | 100 °C |
| 2 x 8-Pin | PCIe-Power | 1 x 8-Pin |
Cooler & FansThe ASUS ROG Strix Radeon RX Vega 56 OC Gaming is equipped with a total of 3 Axial main fans. The ASRock Radeon RX 6600 XT Challenger Pro 8GB OC has 3 Axial main fans that cool the GPU and memory. |
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| Axial | Fan-Type | Axial |
| 3 x 90 mm | Fan 1 | 3 x 90 mm |
| -- | Fan 2 | -- |
| Air cooling | Cooler-Type | Air cooling |
| dB | Noise (Idle) | 0 dB |
| -- | Noise (Load) | -- |
ConnectivityUp to 4 screens can be operated with the ASUS ROG Strix Radeon RX Vega 56 OC Gaming. The ASRock Radeon RX 6600 XT Challenger Pro 8GB OC supports the operation of a maximum of 4 monitors. |
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| 4 | Max. Displays | 4 |
| -- | HDCP-Version | 2.3 |
| 2x HDMI v2.0b | HDMI Ports | 1x HDMI v2.1 |
| 2x DP v1.4 | DP Ports | 3x DP v1.4 |
| 1 | DVI Ports | -- |
| -- | VGA Ports | -- |
| -- | USB-C Ports | -- |
FeaturesetWith the ASUS ROG Strix Radeon RX Vega 56 OC Gaming it is possible to operate a screen with a maximum resolution of up to 7680x4320 pixels. The maximum supported resolution of the ASRock Radeon RX 6600 XT Challenger Pro 8GB OC is 7680x4320 pixels. |
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| 7680x4320 | Max. resolution | 7680x4320 |
| 12_1 | DirectX | 12_2 (Ultimate) |
| No | Raytracing | Yes |
| Yes | DLSS / FSR | Yes |
| ASUS Aura Sync | LED | Addressable LED |
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 |
| No | AV1 | Decode |
| Decode | VP8 | Decode / Encode |
| Decode / Encode | VP9 | Decode / Encode |
DimensionsThe ASUS ROG Strix Radeon RX Vega 56 OC Gaming is connected to the system via PCIe 3.0 x 16 lanes and requires 3 PCIe-Slots space in the housing. The ASRock Radeon RX 6600 XT Challenger Pro 8GB OC needs the space of 3 PCIe-Slots in the case and has a PCIe 4.0 x 8 Lanes interface. |
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| 298 mm | Length | 303 mm |
| 139 mm | Height | 131 mm |
| 53 mm | Width | 45 mm |
| 3 PCIe-Slots | Width (Slots) | 3 PCIe-Slots |
| -- | Weight | 834 g |
| PCIe 3.0 x 16 | GPU Interface | PCIe 4.0 x 8 |
Additional dataThe ASUS ROG Strix Radeon RX Vega 56 OC Gaming has been manufactured with a structure width of 14 nanometers since Q3/2017. The ASRock Radeon RX 6600 XT Challenger Pro 8GB OC came on the market in Q3/2021 and will have a structure width of 7 nanometers manufactured. |
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| ROG-STRIX-RXVEGA56-O8G-GAMING | Part-no | RX6600XT CLP 8GO |
| Q3/2017 | Release date | Q3/2021 |
| 399 $ (Reference) | Launch Price | 379 $ (Reference) |
| 14 nm | Structure size | 7 nm |
| data sheet | Documents | data sheet |
1.297 GHz, 8 GB (300 W TDP)
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2.033 GHz, 8 GB (160 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 ROG Strix Radeon RX Vega 56 OC Gaming
8 GB HBM2 |
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ASRock Radeon RX 6600 XT Challenger Pro 8GB OC
8 GB GDDR6 |
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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.
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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ASUS ROG Strix Radeon RX Vega 56 OC Gaming
8 GB HBM2 |
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ASRock Radeon RX 6600 XT Challenger Pro 8GB OC
8 GB GDDR6 |
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2560x1440 (1440p)
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ASUS ROG Strix Radeon RX Vega 56 OC Gaming
8 GB HBM2 |
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ASRock Radeon RX 6600 XT Challenger Pro 8GB OC
8 GB GDDR6 |
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1920x1080 (1080p)
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ASUS ROG Strix Radeon RX Vega 56 OC Gaming
8 GB HBM2 |
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ASRock Radeon RX 6600 XT Challenger Pro 8GB OC
8 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 ROG Strix Radeon RX Vega 56 OC Gaming
8 GB HBM2 |
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ASRock Radeon RX 6600 XT Challenger Pro 8GB OC
8 GB GDDR6 |
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Geekbench 6 - Vulkan
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ASUS ROG Strix Radeon RX Vega 56 OC Gaming
8 GB HBM2 |
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ASRock Radeon RX 6600 XT Challenger Pro 8GB OC
8 GB GDDR6 |
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Geekbench 6 - Metal
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ASUS ROG Strix Radeon RX Vega 56 OC Gaming
8 GB HBM2 |
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ASRock Radeon RX 6600 XT Challenger Pro 8GB OC
8 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 ROG Strix Radeon RX Vega 56 OC Gaming
8 GB HBM2 |
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ASRock Radeon RX 6600 XT Challenger Pro 8GB OC
8 GB GDDR6 |
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