In the gpu comparison between the AMD Radeon RX 6900 XT and the NVIDIA GeForce RTX 3080 Founders Edition (LHR), we compare both the technical data and the benchmark results of the two graphics cards.
Quick comparison
In FP32 performance, the NVIDIA GeForce RTX 3080 Founders Edition (LHR) is 29 % faster than the AMD Radeon RX 6900 XT.
The AMD Radeon RX 6900 XT is based on the AMD Radeon RX 6900 XT and has 5120 texture shaders and 80 execution units.
NVIDIA GeForce RTX 3080 Founders Edition (LHR) is based on NVIDIA GeForce RTX 3080 LHR, which has 8704 shaders and 68 execution units.
Memory
Memory
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 Founders Edition (LHR)
Memory Size
16 GB
10 GB
Memory Type
GDDR6
GDDR6X
Memory Clock
2.000 GHz
1.188 GHz
Memory Speed
16.0 Gbps
19.0 Gbps
Memory bandwidth
512 GB/s
760 GB/s
Memory Interface
256 bit
320 bit
More information
The AMD Radeon RX 6900 XT has 16 GB of graphics memory of the type GDDR6 and achieves a memory bandwidth of 512 GB/s.
The NVIDIA GeForce RTX 3080 Founders Edition (LHR) can access 10 GB GDDR6X graphics memory and thus achieves a memory bandwidth of 760 GB/s.
Clock Speeds
Clock Speeds
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 Founders Edition (LHR)
Base Clock
1.825 GHz
1.440 GHz
Boost Clock
2.250 GHz
1.710 GHz
Avg (Game) Clock
2.02 GHz
--
Overclocking
Yes
Yes
More information
The AMD Radeon RX 6900 XT clocks in the base with up to 1.825 GHz. The base frequency of the NVIDIA GeForce RTX 3080 Founders Edition (LHR) is 1.440 GHz.
Thermal Design
Thermal Design
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 Founders Edition (LHR)
TDP
300 W
320 W
TDP (up)
345 W
370 W
Tjunction max
100 °C
93 °C
PCIe-Power
2 x 8-Pin
2 x 8-Pin
More information
The TDP (Thermal Design Power) of the AMD Radeon RX 6900 XT is 300 W. The graphics card is supplied with energy via the 2 x 8-Pin connector.
The NVIDIA GeForce RTX 3080 Founders Edition (LHR) has a TDP of 320 W and is supplied with the required energy via 2 x 8-Pin PCIe power connectors.
Cooler & Fans
Cooler & Fans
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 Founders Edition (LHR)
Fan-Type
Axial
Axial
Fan 1
3 x 80 mm
2 x 85 mm
Cooler-Type
Air cooling
Air cooling
Noise (Idle)
0 dB
0 dB
Noise (Load)
38 dB
43 dB
More information
The AMD Radeon RX 6900 XT has a total of 3 Axial fans.
The NVIDIA GeForce RTX 3080 Founders Edition (LHR) has 2 Axial fans to cool the GPU and memory.
Connectivity
Connectivity
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 Founders Edition (LHR)
Max. Displays
4
4
HDCP
2.3
2.3
HDMI
1x HDMI 2.1
1x HDMI 2.1
DisplayPort
2x DP 1.4a
3x DP 1.4a
USB-C
1
--
More information
In the connectivity category, we recorded the number of ports on a graphics card. A total of 4 screens can be connected to the AMD Radeon RX 6900 XT.
The NVIDIA GeForce RTX 3080 Founders Edition (LHR) supports a maximum of 4 screens.
Featureset
Featureset
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 Founders Edition (LHR)
Max. resolution
7680x4320
7680x4320
DirectX
12_2 (Ultimate)
12_2 (Ultimate)
Raytracing
Yes
Yes
DLSS / FSR
Yes
Yes
LED
Non addressable LED
No LED lighting
More information
The AMD Radeon RX 6900 XT supports a maximum resolution of 7680x4320 pixels.
The maximum resolution of the NVIDIA GeForce RTX 3080 Founders Edition (LHR) is 7680x4320 pixels.
Supported Video Codecs
Supported Video Codecs
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 Founders Edition (LHR)
h264
Decode / Encode
Decode / Encode
h265 / HEVC
Decode / Encode
Decode / Encode
VP8
Decode / Encode
Decode
VP9
Decode / Encode
Decode
AV1
Decode
Decode
More information
The support and acceleration of certain video codecs directly in the graphics card reduces the load when playing or creating videos.
Dimensions
Dimensions
AMD Radeon RX 6900 XT
NVIDIA GeForce RTX 3080 Founders Edition (LHR)
Length
267 mm
285 mm
Height
120 mm
110 mm
Width (Slots)
3 Slots
2 Slots
Weight
1,492 g
1,350 g
SFF-Ready
No
No
More information
The AMD Radeon RX 6900 XT is 267 mm long, 120 mm high and -- wide.
The NVIDIA GeForce RTX 3080 Founders Edition (LHR) is 285 mm long, 110 mm high and -- wide.
3DMark is a benchmark program that determines the performance of certain components of a computer and then reports the performance as a numerical value.
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.
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.
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.
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.
Here you can rate the AMD Radeon RX 6900 XT to help other visitors make their purchasing decisions. The average rating is 4.6 stars (5 ratings). Rate now:
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