ASUS ROG Strix GeForce RTX 3090
vs
PowerColor Red Devil Radeon RX 6900 XT Ultimate


GPU comparison with benchmarks

The ASUS ROG Strix GeForce RTX 3090 is based on the NVIDIA GeForce RTX 3090 (Ampere) and has 24 GB GDDR6X graphics memory with a bandwidth of 936 GB/s.

The PowerColor Red 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.

GPU

The ASUS ROG Strix GeForce RTX 3090 has the GA102-300-A1 graphics chip installed, which is based on the Ampere architecture.

The PowerColor Red Devil Radeon RX 6900 XT Ultimate is based on the graphics chip Navi 21, which comes from the RDNA 2 architecture.
ASUS ROG Strix GeForce RTX 3090 GPU PowerColor Red Devil Radeon RX 6900 XT Ultimate
NVIDIA GeForce RTX 3090 Based on AMD Radeon RX 6900 XT
GA102-300-A1 GPU Chip Navi 21
Ampere Architecture RDNA 2
82 Streaming Multiprocessors 80
10496 Shader 5120
112 Render Output Units 128
328 Texture Units 320
82 Raytracing Cores 80

Memory

The graphics memory of the ASUS ROG Strix GeForce RTX 3090 clocks at 1.219 GHz, which corresponds to a speed of 19.5 Gbps.

The graphics memory speed of the PowerColor Red Devil Radeon RX 6900 XT Ultimate is 16.0 Gbps and the clock speed is 2.000 GHz.

24 GB Memory Size 16 GB
GDDR6X Memory Type GDDR6
1.219 GHz Memory Clock 2.000 GHz
19.5 Gbps Memory Speed 16.0 Gbps
936 GB/s Memory bandwidth 512 GB/s
384 bit Memory Interface 256 bit

Clock Speeds

The clock frequency of a graphics card determines the speed in connection with the graphics architecture.

1.395 GHz Base Clock 1.825 GHz
1.725 GHz Boost Clock 2.425 GHz
1.70 GHz Avg (Game) Clock 2.24 GHz
Yes Overclocking Yes

Thermal Design

The ASUS ROG Strix GeForce RTX 3090 is powered by 3 x 8-Pin connectors. The TDP (Thermal Design Power) of the graphics card is 350 W.

The PowerColor Red Devil Radeon RX 6900 XT Ultimate has 3 x 8-Pin PCIe power connectors that supply it with energy. The manufacturer specifies the TDP of the card as 300 W.

350 W TDP 300 W
430 W TDP (up) 345 W
93 °C Tjunction max 100 °C
3 x 8-Pin PCIe-Power 3 x 8-Pin

Cooler & Fans

The ASUS ROG Strix GeForce RTX 3090 is equipped with a total of 3 Axial main fans.

The PowerColor Red Devil Radeon RX 6900 XT Ultimate has 3 Axial main fans that cool the GPU and memory.

Axial Fan-Type Axial
3 x 95 mm Fan 1 2 x 100 mm
-- Fan 2 1 x 90 mm
Air cooling Cooler-Type Air cooling
0 dB Noise (Idle) 0 dB
38-45 dB Noise (Load) 34 dB

Connectivity

Up to 4 screens can be operated with the ASUS ROG Strix GeForce RTX 3090.

The PowerColor Red Devil Radeon RX 6900 XT Ultimate supports the operation of a maximum of 4 monitors.

4 Max. Displays 4
2.3 HDCP-Version 2.3
2x HDMI v2.1 HDMI Ports 1x HDMI v2.1
3x DP v1.4a DP Ports 3x DP v1.4a
-- DVI Ports --
-- VGA Ports --
-- USB-C Ports --

Featureset

With the ASUS ROG Strix GeForce RTX 3090 it is possible to operate a screen with a maximum resolution of up to 7680x4320 pixels.

The maximum supported resolution of the PowerColor Red Devil Radeon RX 6900 XT Ultimate is 7680x4320 pixels.

7680x4320 Max. resolution 7680x4320
12_2 (Ultimate) DirectX 12_2 (Ultimate)
Yes Raytracing Yes
Yes DLSS / FSR Yes
ASUS Aura Sync LED Addressable LED

Supported Video Codecs

The 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.

Decode / Encode h264 Decode / Encode
Decode / Encode h265 / HEVC Decode / Encode
Decode AV1 Decode
Decode VP8 Decode / Encode
Decode VP9 Decode / Encode

Dimensions

The ASUS ROG Strix GeForce RTX 3090 is connected to the system via PCIe 4.0 x 16 lanes and requires 3 PCIe-Slots space in the housing.

The PowerColor Red Devil Radeon RX 6900 XT Ultimate needs the space of 3 PCIe-Slots in the case and has a PCIe 4.0 x 16 Lanes interface.

319 mm Length 320 mm
140 mm Height 135 mm
58 mm Width 62 mm
3 PCIe-Slots Width (Slots) 3 PCIe-Slots
1810 g Weight --
PCIe 4.0 x 16 GPU Interface PCIe 4.0 x 16

Additional data

The ASUS ROG Strix GeForce RTX 3090 has been manufactured with a structure width of 8 nanometers since Q4/2020.

The PowerColor Red Devil Radeon RX 6900 XT Ultimate came on the market in Q2/2021 and will have a structure width of 7 nanometers manufactured.

ROG-STRIX-RTX3090-24G-GAMING Part-no AXRX 6900XTU 16GBD6-3DHE/OC
Q4/2020 Release date Q2/2021
1,639 $ Launch Price 999 $ (Reference)
8 nm Structure size 7 nm
data sheet Documents data sheet

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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

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)

2560x1440 (1440p)

1920x1080 (1080p)

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

Geekbench 6 - Vulkan

Geekbench 6 - Metal

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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