The NVIDIA GeForce RTX 4080 Founders Edition is based on the NVIDIA GeForce RTX 4080 (Ada Lovelace) and has 16 GB GDDR6X graphics memory with a bandwidth of 736 GB/s.
Quick comparison
In FP32 performance, the SAPPHIRE Radeon RX 7900 XTX 24GB is 26 % faster than the NVIDIA GeForce RTX 4080 Founders Edition.
The SAPPHIRE Radeon RX 7900 XTX 24GB has the Navi 31 graphics chip installed, which is based on the RDNA 3 architecture.
The NVIDIA GeForce RTX 4080 Founders Edition is based on the graphics chip AD103-300-A1, which comes from the Ada Lovelace architecture.
Memory
Memory
SAPPHIRE Radeon RX 7900 XTX 24GB
NVIDIA GeForce RTX 4080 Founders Edition
Memory Size
24 GB
16 GB
Memory Type
GDDR6
GDDR6X
Memory Clock
2.500 GHz
1.400 GHz
Memory Speed
20.0 Gbps
22.4 Gbps
Memory bandwidth
960 GB/s
736 GB/s
Memory Interface
384 bit
256 bit
More information
The graphics memory of the SAPPHIRE Radeon RX 7900 XTX 24GB clocks at 2.500 GHz, which corresponds to a speed of 20.0 Gbps.
The graphics memory speed of the NVIDIA GeForce RTX 4080 Founders Edition is 22.4 Gbps and the clock speed is 1.400 GHz.
Clock Speeds
Clock Speeds
SAPPHIRE Radeon RX 7900 XTX 24GB
NVIDIA GeForce RTX 4080 Founders Edition
Base Clock
1.900 GHz
2.205 GHz
Boost Clock
2.500 GHz
2.505 GHz
Avg (Game) Clock
2.30 GHz
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Overclocking
Yes
Yes
More information
The clock frequency of a graphics card determines the speed in connection with the graphics architecture.
Thermal Design
Thermal Design
SAPPHIRE Radeon RX 7900 XTX 24GB
NVIDIA GeForce RTX 4080 Founders Edition
TDP
346 W
320 W
Tjunction max
97 °C
90 °C
PCIe-Power
2 x 8-Pin
1 x 16-Pin
More information
The SAPPHIRE Radeon RX 7900 XTX 24GB is powered by 2 x 8-Pin connectors. The TDP (Thermal Design Power) of the graphics card is 346 W.
The NVIDIA GeForce RTX 4080 Founders Edition has 1 x 16-Pin PCIe power connectors that supply it with energy. The manufacturer specifies the TDP of the card as 320 W.
Cooler & Fans
Cooler & Fans
SAPPHIRE Radeon RX 7900 XTX 24GB
NVIDIA GeForce RTX 4080 Founders Edition
Fan-Type
Axial
Axial
Fan 1
3 x 90 mm
2 x 110 mm
Cooler-Type
Air cooling
Air cooling
Noise (Idle)
0 dB
0 dB
Noise (Load)
--
38 dB
More information
The SAPPHIRE Radeon RX 7900 XTX 24GB is equipped with a total of 3 Axial main fans.
The NVIDIA GeForce RTX 4080 Founders Edition has 2 Axial main fans that cool the GPU and memory.
Connectivity
Connectivity
SAPPHIRE Radeon RX 7900 XTX 24GB
NVIDIA GeForce RTX 4080 Founders Edition
Max. Displays
4
4
HDCP
2.3
2.3
HDMI
1x HDMI 2.1
1x HDMI 2.1
DisplayPort
2x DP 2.1
3x DP 1.4a
USB-C
1
--
More information
Up to 4 screens can be operated with the SAPPHIRE Radeon RX 7900 XTX 24GB.
The NVIDIA GeForce RTX 4080 Founders Edition supports the operation of a maximum of 4 monitors.
Featureset
Featureset
SAPPHIRE Radeon RX 7900 XTX 24GB
NVIDIA GeForce RTX 4080 Founders Edition
Max. resolution
7680x4320
7680x4320
DirectX
12_2 (Ultimate)
12_2 (Ultimate)
Raytracing
Yes
Yes
DLSS / FSR
Yes
Yes
LED
No LED lighting
No LED lighting
More information
With the SAPPHIRE Radeon RX 7900 XTX 24GB it is possible to operate a screen with a maximum resolution of up to 7680x4320 pixels.
The maximum supported resolution of the NVIDIA GeForce RTX 4080 Founders Edition is 7680x4320 pixels.
Supported Video Codecs
Supported Video Codecs
SAPPHIRE Radeon RX 7900 XTX 24GB
NVIDIA GeForce RTX 4080 Founders Edition
h264
Decode / Encode
Decode / Encode
h265 / HEVC
Decode / Encode
Decode / Encode
VP8
Decode / Encode
Decode
VP9
Decode / Encode
Decode
AV1
Decode / Encode
Decode
More information
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.
Dimensions
Dimensions
SAPPHIRE Radeon RX 7900 XTX 24GB
NVIDIA GeForce RTX 4080 Founders Edition
Length
287 mm
304 mm
Height
123 mm
137 mm
Width
51 mm
61 mm
Width (Slots)
3 Slots
3 Slots
SFF-Ready
No
No
More information
The SAPPHIRE Radeon RX 7900 XTX 24GB is connected to the system via PCIe 4 x 16 lanes and requires 3 PCIe-Slots space in the housing.
The NVIDIA GeForce RTX 4080 Founders Edition needs the space of 3 PCIe-Slots in the case and has a PCIe 4.0 x 16 Lanes interface.
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.
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