GPU comparison with benchmarksIn the gpu comparison between the PowerColor Red Devil Radeon RX 6900 XT Ultimate and the GIGABYTE Radeon RX 6800 Gaming OC 16G, we compare both the technical data and the benchmark results of the two graphics cards.
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GPUThe PowerColor Red Devil Radeon RX 6900 XT Ultimate is based on the AMD Radeon RX 6900 XT and has 5120 texture shaders and 80 execution units. GIGABYTE Radeon RX 6800 Gaming OC 16G is based on AMD Radeon RX 6800, which has 3840 shaders and 60 execution units. |
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PowerColor Red Devil Radeon RX 6900 XT Ultimate | GPU | GIGABYTE Radeon RX 6800 Gaming OC 16G |
AMD Radeon RX 6900 XT | Based on | AMD Radeon RX 6800 |
Navi 21 | GPU Chip | Navi 21 |
RDNA 2 | Architecture | RDNA 2 |
80 | Streaming Multiprocessors | 60 |
5120 | Shader | 3840 |
128 | Render Output Units | 96 |
320 | Texture Units | 240 |
80 | Raytracing Cores | 60 |
MemoryThe PowerColor Red Devil Radeon RX 6900 XT Ultimate has 16 GB of graphics memory of the type GDDR6 and achieves a memory bandwidth of 512 GB/s. The GIGABYTE Radeon RX 6800 Gaming OC 16G can access 16 GB GDDR6 graphics memory and thus achieves a memory bandwidth of 512 GB/s. |
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16 GB | Memory Size | 16 GB |
GDDR6 | Memory Type | GDDR6 |
2.000 GHz | Memory Clock | 2.000 GHz |
16.0 Gbps | Memory Speed | 16.0 Gbps |
512 GB/s | Memory bandwidth | 512 GB/s |
256 bit | Memory Interface | 256 bit |
Clock SpeedsThe PowerColor Red Devil Radeon RX 6900 XT Ultimate clocks in the base with up to 1.825 GHz. The base frequency of the GIGABYTE Radeon RX 6800 Gaming OC 16G is 1.775 GHz. |
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1.825 GHz | Base Clock | 1.775 GHz |
2.425 GHz | Boost Clock | 2.155 GHz |
2.24 GHz | Avg (Game) Clock | 1.93 GHz |
Yes | Overclocking | Yes |
Thermal DesignThe TDP (Thermal Design Power) of the PowerColor Red Devil Radeon RX 6900 XT Ultimate is 300 W. The graphics card is supplied with energy via the 3 x 8-Pin connector. The GIGABYTE Radeon RX 6800 Gaming OC 16G has a TDP of 250 W and is supplied with the required energy via 2 x 8-Pin PCIe power connectors. |
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300 W | TDP | 250 W |
345 W | TDP (up) | 285 W |
100 °C | Tjunction max | 100 °C |
3 x 8-Pin | PCIe-Power | 2 x 8-Pin |
Cooler & FansThe PowerColor Red Devil Radeon RX 6900 XT Ultimate has a total of 3 Axial fans. The GIGABYTE Radeon RX 6800 Gaming OC 16G has 3 Axial fans to cool the GPU and memory. |
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Axial | Fan-Type | Axial |
2 x 100 mm | Fan 1 | 3 x 80 mm |
1 x 90 mm | Fan 2 | -- |
Air cooling | Cooler-Type | Air cooling |
0 dB | Noise (Idle) | 0 dB |
34 dB | Noise (Load) | 35-36 dB |
ConnectivityIn the connectivity category, we recorded the number of ports on a graphics card. A total of 4 screens can be connected to the PowerColor Red Devil Radeon RX 6900 XT Ultimate. The GIGABYTE Radeon RX 6800 Gaming OC 16G supports a maximum of 4 screens. |
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4 | Max. Displays | 4 |
2.3 | HDCP-Version | 2.3 |
1x HDMI v2.1 | HDMI Ports | 2x HDMI v2.1 |
3x DP v1.4a | DP Ports | 2x DP v1.4a |
-- | DVI Ports | -- |
-- | VGA Ports | -- |
-- | USB-C Ports | -- |
FeaturesetThe PowerColor Red Devil Radeon RX 6900 XT Ultimate supports a maximum resolution of 7680x4320 pixels. The maximum resolution of the GIGABYTE Radeon RX 6800 Gaming OC 16G 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 | GIGABYTE RGB Fusion |
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 | Decode |
Decode / Encode | VP8 | Decode / Encode |
Decode / Encode | VP9 | Decode / Encode |
DimensionsThe PowerColor Red Devil Radeon RX 6900 XT Ultimate is 320 mm long, 135 mm high and 62 mm wide. The GIGABYTE Radeon RX 6800 Gaming OC 16G is 286 mm long, 112 mm high and 58 mm wide. |
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320 mm | Length | 286 mm |
135 mm | Height | 112 mm |
62 mm | Width | 58 mm |
3 PCIe-Slots | Width (Slots) | 3 PCIe-Slots |
-- | Weight | -- |
PCIe 4.0 x 16 | GPU Interface | PCIe 4.0 x 16 |
Additional dataThe PowerColor Red Devil Radeon RX 6900 XT Ultimate was released in Q2/2021 at a price of 999 $ (Reference). The GIGABYTE Radeon RX 6800 Gaming OC 16G was introduced in Q4/2020 at a price of 649 $. |
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AXRX 6900XTU 16GBD6-3DHE/OC | Part-no | GV-R68GAMING OC-16GD |
Q2/2021 | Release date | Q4/2020 |
999 $ (Reference) | Launch Price | 649 $ |
7 nm | Structure size | 7 nm |
data sheet | Documents | data sheet |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |
PowerColor Red Devil Radeon RX 6900 XT Ultimate
16 GB GDDR6 |
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GIGABYTE Radeon RX 6800 Gaming OC 16G
16 GB GDDR6 |