GPU comparison with benchmarksThe ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC is based on the AMD Radeon RX 7900 XT (RDNA 3) and has 20 GB GDDR6 graphics memory with a bandwidth of 800 GB/s.
The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming is based on the AMD Radeon RX 6950 XT (RDNA 2) and has 16 GB GDDR6 graphics memory with a bandwidth of 576 GB/s. |
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GPUThe ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC has the Navi 31 graphics chip installed, which is based on the RDNA 3 architecture. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming is based on the graphics chip Navi 21 KXTX, which comes from the RDNA 2 architecture. |
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ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC | GPU | XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming |
AMD Radeon RX 7900 XT | Based on | AMD Radeon RX 6950 XT |
Navi 31 | GPU Chip | Navi 21 KXTX |
RDNA 3 | Architecture | RDNA 2 |
84 | Streaming Multiprocessors | 80 |
5376 | Shader | 5120 |
192 | Render Output Units | 128 |
336 | Texture Units | 320 |
84 | Raytracing Cores | 80 |
MemoryThe graphics memory of the ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC clocks at 2.500 GHz, which corresponds to a speed of 20.0 Gbps. The graphics memory speed of the XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming is 18.0 Gbps and the clock speed is 2.250 GHz. |
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20 GB | Memory Size | 16 GB |
GDDR6 | Memory Type | GDDR6 |
2.500 GHz | Memory Clock | 2.250 GHz |
20.0 Gbps | Memory Speed | 18.0 Gbps |
800 GB/s | Memory bandwidth | 576 GB/s |
320 bit | Memory Interface | 256 bit |
Clock SpeedsThe clock frequency of a graphics card determines the speed in connection with the graphics architecture. |
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1.500 GHz | Base Clock | 2.009 GHz |
2.450 GHz | Boost Clock | 2.368 GHz |
2.08 GHz | Avg (Game) Clock | 2.16 GHz |
Yes | Overclocking | Yes |
Thermal DesignThe ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC is powered by 2 x 8-Pin connectors. The TDP (Thermal Design Power) of the graphics card is 300 W. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming has 2 x 8-Pin PCIe power connectors that supply it with energy. The manufacturer specifies the TDP of the card as 405 W. |
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300 W | TDP | 405 W |
-- | TDP (up) | -- |
97 °C | Tjunction max | 100 °C |
2 x 8-Pin | PCIe-Power | 2 x 8-Pin |
Cooler & FansThe ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC is equipped with a total of 3 Axial main fans. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming has 3 Axial main fans that cool the GPU and memory. |
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Axial | Fan-Type | Axial |
3 x 100 mm | Fan 1 | 2 x 90 mm |
-- | Fan 2 | 1 x 80 mm |
Air cooling | Cooler-Type | Air cooling |
0 dB | Noise (Idle) | 0 dB |
-- | Noise (Load) | -- |
ConnectivityUp to 4 screens can be operated with the ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming supports the operation of a maximum of 4 monitors. |
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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 v2.1 | DP Ports | 3x DP v1.4a |
-- | DVI Ports | -- |
-- | VGA Ports | -- |
-- | USB-C Ports | -- |
FeaturesetWith the ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC it is possible to operate a screen with a maximum resolution of up to 7680x4320 pixels. The maximum supported resolution of the XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming is 7680x4320 pixels. |
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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 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 / Encode | AV1 | Decode |
Decode / Encode | VP8 | Decode / Encode |
Decode / Encode | VP9 | Decode / Encode |
DimensionsThe ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC is connected to the system via PCIe 4 x 16 lanes and requires 3 PCIe-Slots space in the housing. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming needs the space of 3 PCIe-Slots in the case and has a PCIe 4.0 x 16 Lanes interface. |
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330 mm | Length | 340 mm |
140 mm | Height | 139 mm |
58 mm | Width | 57 mm |
3 PCIe-Slots | Width (Slots) | 3 PCIe-Slots |
1450 g | Weight | -- |
PCIe 4 x 16 | GPU Interface | PCIe 4.0 x 16 |
Additional dataThe ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC has been manufactured with a structure width of 5 nanometers since Q4/2022. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming came on the market in Q2/2022 and will have a structure width of 7 nanometers manufactured. |
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RX7900XT PG 20GO | Part-no | RX-695XATBD9 |
Q4/2022 | Release date | Q2/2022 |
899 $ (Reference) | Launch Price | 1,099 $ (Reference) |
5 nm | Structure size | 7 nm |
data sheet | Documents | data sheet |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
ASRock Radeon RX 7900 XT Phantom Gaming 20GB OC
20 GB GDDR6 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |