ASRock Radeon RX 6900 XT OC Formula 16GB
vs
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
GPU comparison with benchmarksThe ASRock Radeon RX 6900 XT OC Formula 16GB has 5120 shader units and these clock a maximum of 2.48 GHz which results in an FP32 computing power of 25.34 TFLOPS.
The ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC has 5376 shader units and these clock at a maximum of 2.45 GHz and achieve an FP32 computing power of 52.69 TFLOPS. |
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GPUThe ASRock Radeon RX 6900 XT OC Formula 16GB is equipped with a graphics chip of the RDNA 2 architecture, which has 80 streaming multiprocessors. The graphics card ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC is based on the RDNA 3 architecture and is equipped with 84 execution units. |
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| ASRock Radeon RX 6900 XT OC Formula 16GB | GPU | ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC |
| AMD Radeon RX 6900 XT | Based on | AMD Radeon RX 7900 XT |
| Navi 21 | GPU Chip | Navi 31 |
| RDNA 2 | Architecture | RDNA 3 |
| 80 | Streaming Multiprocessors | 84 |
| 5120 | Shader | 5376 |
| 128 | Render Output Units | 192 |
| 320 | Texture Units | 336 |
| 80 | Raytracing Cores | 84 |
MemoryThe ASRock Radeon RX 6900 XT OC Formula 16GB is equipped with a 16 GB large GDDR6 graphics memory, which is equipped with 2.000 GHz clocks. The ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC has a 20 GB large GDDR6 graphics memory and the memory clock is 2.500GHz. |
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| 16 GB | Memory Size | 20 GB |
| GDDR6 | Memory Type | GDDR6 |
| 2.000 GHz | Memory Clock | 2.500 GHz |
| 16.0 Gbps | Memory Speed | 20.0 Gbps |
| 512 GB/s | Memory bandwidth | 800 GB/s |
| 256 bit | Memory Interface | 320 bit |
Clock SpeedsThe ASRock Radeon RX 6900 XT OC Formula 16GB has a turbo clock of 2.475 GHz. The turbo frequency of the ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC is 2.450 GHz. |
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| 2.125 GHz | Base Clock | 1.500 GHz |
| 2.475 GHz | Boost Clock | 2.450 GHz |
| 2.37 GHz | Avg (Game) Clock | 2.08 GHz |
| Yes | Overclocking | Yes |
Thermal DesignThe ASRock Radeon RX 6900 XT OC Formula 16GB 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 ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC is equipped with a 2 x 8-Pin PCIe power connector that supplies it with power. The maximum operating temperature of the card is 97 °C. |
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| 300 W | TDP | 300 W |
| 345 W | TDP (up) | -- |
| 100 °C | Tjunction max | 97 °C |
| 3 x 8-Pin | PCIe-Power | 2 x 8-Pin |
Cooler & FansThe graphics processor and graphics memory of the ASRock Radeon RX 6900 XT OC Formula 16GB are cooled with a Air cooling. The ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC is cooled by a Air cooling. |
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| Axial | Fan-Type | Axial |
| 3 x 100 mm | Fan 1 | 3 x 100 mm |
| -- | Fan 2 | -- |
| Air cooling | Cooler-Type | Air cooling |
| 0 dB | Noise (Idle) | 0 dB |
| -- | Noise (Load) | -- |
ConnectivityThe ASRock Radeon RX 6900 XT OC Formula 16GB supports the downward compatible copy protection HDCP in version 2.3. The ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC supports HDCP in version 2.3 and all previous versions. |
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| 4 | Max. Displays | 4 |
| 2.3 | HDCP-Version | 2.3 |
| 1x HDMI v2.1 | HDMI Ports | 1x HDMI v2.1 |
| 3x DP v1.4a | DP Ports | 3x DP v2.1 |
| -- | DVI Ports | -- |
| -- | VGA Ports | -- |
| -- | USB-C Ports | -- |
FeaturesetThe ASRock Radeon RX 6900 XT OC Formula 16GB supports the DirectX standard from Microsoft in version 12_2 (Ultimate). The ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC supports Microsoft's DirectX version 12_2 (Ultimate). |
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| 7680x4320 | Max. resolution | 7680x4320 |
| 12_2 (Ultimate) | DirectX | 12_2 (Ultimate) |
| Yes | Raytracing | Yes |
| Yes | DLSS / FSR | Yes |
| Addressable LED | LED | Addressable LED |
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 | Decode / Encode |
| Decode / Encode | VP8 | Decode / Encode |
| Decode / Encode | VP9 | Decode / Encode |
DimensionsThe ASRock Radeon RX 6900 XT OC Formula 16GB is 61 mm wide and therefore needs the space of 3 PCIe-Slots in the case. The width of the ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC is 61 mm and thus requires the space of 3 PCIe-Slots in the PC case. |
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| 332 mm | Length | 330 mm |
| 137 mm | Height | 140 mm |
| 61 mm | Width | 58 mm |
| 3 PCIe-Slots | Width (Slots) | 3 PCIe-Slots |
| 1784 g | Weight | 1450 g |
| PCIe 4.0 x 16 | GPU Interface | PCIe 4 x 16 |
Additional dataManufactured using the 7 nanometer process, ASRock Radeon RX 6900 XT OC Formula 16GB was released in Q2/2021. The ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC published in Q4/2022 is manufactured with a structure width of 5 nanometers. |
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| RX6900XT OCF 16G | Part-no | RX7900XT PG 20GO |
| Q2/2021 | Release date | Q4/2022 |
| 999 $ (Reference) | Launch Price | 899 $ (Reference) |
| 7 nm | Structure size | 5 nm |
| data sheet | Documents | data sheet |
2.125 GHz, 16 GB (300 W TDP)
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1.500 GHz, 20 GB (300 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 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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Port Royal (Raytracing)
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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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Speed Way Graphics Score (Raytracing)
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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 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 6900 XT OC Formula 16GB
16 GB GDDR6 |
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2560x1440 (1440p)
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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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1920x1080 (1080p)
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ASRock Radeon RX 6900 XT OC Formula 16GB
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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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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2560x1440 (1440p)
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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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1920x1080 (1080p)
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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 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 6900 XT OC Formula 16GB
16 GB GDDR6 |
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2560x1440 (1440p)
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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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1920x1080 (1080p)
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ASRock Radeon RX 6900 XT OC Formula 16GB
16 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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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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Geekbench 6 - Vulkan
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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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Geekbench 6 - Metal
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ASRock Radeon RX 6900 XT OC Formula 16GB
16 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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ASRock Radeon RX 6900 XT OC Formula 16GB
16 GB GDDR6 |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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