NVIDIA GeForce RTX 3080 12GB
vs
AMD Radeon RX 6900 XT


GPU comparison with benchmarks

The NVIDIA GeForce RTX 3080 12GB has 8960 shader units and these clock a maximum of 1.71 GHz which results in an FP32 computing power of 30.64 TFLOPS.

The AMD Radeon RX 6900 XT has 5120 shader units and these clock at a maximum of 2.25 GHz and achieve an FP32 computing power of 23.04 TFLOPS.

GPU

The NVIDIA GeForce RTX 3080 12GB is equipped with a graphics chip of the Ampere architecture, which has 70 streaming multiprocessors.

The graphics card AMD Radeon RX 6900 XT is based on the RDNA 2 architecture and is equipped with 80 execution units.
NVIDIA GeForce RTX 3080 12GB GPU AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 12GB Based on AMD Radeon RX 6900 XT
GA102 GPU Chip Navi 21
Ampere Architecture RDNA 2
70 Streaming Multiprocessors 80
8960 Shader 5120
112 Render Output Units 128
280 Texture Units 320
70 Raytracing Cores 80

Memory

The NVIDIA GeForce RTX 3080 12GB is equipped with a 12 GB large GDDR6X graphics memory, which is equipped with 1.188 GHz clocks.

The AMD Radeon RX 6900 XT has a 16 GB large GDDR6 graphics memory and the memory clock is 2.000GHz.

12 GB Memory Size 16 GB
GDDR6X Memory Type GDDR6
1.188 GHz Memory Clock 2.000 GHz
19.0 Gbps Memory Speed 16.0 Gbps
912 GB/s Memory bandwidth 512 GB/s
384 bit Memory Interface 256 bit

Clock Speeds

The NVIDIA GeForce RTX 3080 12GB has a turbo clock of 1.710 GHz. The turbo frequency of the AMD Radeon RX 6900 XT is 2.250 GHz.

1.260 GHz Base Clock 1.825 GHz
1.710 GHz Boost Clock 2.250 GHz
Avg (Game) Clock 2.02 GHz
Yes Overclocking Yes

Thermal Design

The NVIDIA GeForce RTX 3080 12GB has 1 x 8-Pin connectors through which it is supplied with power. The manufacturer specifies the maximum operating temperature of the graphics card as 93 °C.

The AMD Radeon RX 6900 XT is equipped with a 2 x 8-Pin PCIe power connector that supplies it with power. The maximum operating temperature of the card is 100 °C.

350 W TDP 300 W
-- TDP (up) 345 W
93 °C Tjunction max 100 °C
1 x 8-Pin PCIe-Power 2 x 8-Pin

Cooler & Fans

The graphics processor and graphics memory of the NVIDIA GeForce RTX 3080 12GB are cooled with a Air cooling.

The AMD Radeon RX 6900 XT is cooled by a Air cooling.

Axial Fan-Type Axial
3 x 90 mm Fan 1 3 x 80 mm
-- Fan 2 --
Air cooling Cooler-Type Air cooling
0 dB Noise (Idle) 0 dB
-- Noise (Load) 38 dB

Connectivity

The NVIDIA GeForce RTX 3080 12GB supports the downward compatible copy protection HDCP in version 2.3.

The AMD Radeon RX 6900 XT supports HDCP in version 2.3 and all previous versions.

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 2x DP v1.4a
-- DVI Ports --
-- VGA Ports --
-- USB-C Ports 1

Featureset

The NVIDIA GeForce RTX 3080 12GB supports the DirectX standard from Microsoft in version 12_2 (Ultimate).

The AMD Radeon RX 6900 XT supports Microsoft's DirectX version 12_2 (Ultimate).

7680x4320 Max. resolution 7680x4320
12_2 (Ultimate) DirectX 12_2 (Ultimate)
Yes Raytracing Yes
Yes DLSS / FSR Yes
No LED lighting LED Non addressable LED

Supported Video Codecs

This 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.

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

Dimensions

The NVIDIA GeForce RTX 3080 12GB is -- wide and therefore needs the space of 3 PCIe-Slots in the case.

The width of the AMD Radeon RX 6900 XT is -- and thus requires the space of 3 PCIe-Slots in the PC case.

285 mm Length 267 mm
112 mm Height 120 mm
-- Width --
2 PCIe-Slots Width (Slots) 3 PCIe-Slots
-- Weight 1492 g
PCIe 4.0 x 16 GPU Interface PCIe 4.0 x 16

Additional data

Manufactured using the 8 nanometer process, NVIDIA GeForce RTX 3080 12GB was released in Q1/2022.

The AMD Radeon RX 6900 XT published in Q4/2020 is manufactured with a structure width of 7 nanometers.

-- Part-no 102-D412
Q1/2022 Release date Q4/2020
699 $ (Reference) Launch Price 999 $
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)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
60 fps (avg)
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
64 fps (avg)

2560x1440 (1440p)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
70 fps (avg)
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
75 fps (avg)

1920x1080 (1080p)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
104 fps (avg)
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
114 fps (avg)

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)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
38 fps (avg)
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
38 fps (avg)

2560x1440 (1440p)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
76 fps (avg)
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
74 fps (avg)

1920x1080 (1080p)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
126 fps (avg)
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
126 fps (avg)

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)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
107 fps (avg)
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
110 fps (avg)

2560x1440 (1440p)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
185 fps (avg)
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
200 fps (avg)

1920x1080 (1080p)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
200 fps (avg)
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
200 fps (avg)

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

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
173946
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
161394

Geekbench 6 - Vulkan

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
152716
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
161439

Geekbench 6 - Metal

AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
235478

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)

NVIDIA GeForce RTX 3080 12GB NVIDIA GeForce RTX 3080 12GB
12 GB GDDR6X
30.64
AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT
16 GB GDDR6
23.04

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