The SAPPHIRE Radeon RX 7900 XTX 24GB has the Navi 31 graphics chip installed, which is based on the RDNA 3 architecture.
The SAPPHIRE Radeon RX 7900 XT 20GB is based on the graphics chip Navi 31, which comes from the RDNA 3 architecture.
Memory
Memory
SAPPHIRE Radeon RX 7900 XTX 24GB
SAPPHIRE Radeon RX 7900 XT 20GB
Memory Size
24 GB
20 GB
Memory Type
GDDR6
GDDR6
Memory Clock
2.500 GHz
2.500 GHz
Memory Speed
20.0 Gbps
20.0 Gbps
Memory bandwidth
960 GB/s
800 GB/s
Memory Interface
384 bit
320 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 SAPPHIRE Radeon RX 7900 XT 20GB is 20.0 Gbps and the clock speed is 2.500 GHz.
Clock Speeds
Clock Speeds
SAPPHIRE Radeon RX 7900 XTX 24GB
SAPPHIRE Radeon RX 7900 XT 20GB
Base Clock
1.900 GHz
1.500 GHz
Boost Clock
2.500 GHz
2.400 GHz
Avg (Game) Clock
2.30 GHz
2.00 GHz
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
SAPPHIRE Radeon RX 7900 XT 20GB
TDP
346 W
308 W
Tjunction max
97 °C
97 °C
PCIe-Power
2 x 8-Pin
2 x 8-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 SAPPHIRE Radeon RX 7900 XT 20GB has 2 x 8-Pin PCIe power connectors that supply it with energy. The manufacturer specifies the TDP of the card as 308 W.
Cooler & Fans
Cooler & Fans
SAPPHIRE Radeon RX 7900 XTX 24GB
SAPPHIRE Radeon RX 7900 XT 20GB
Fan-Type
Axial
Axial
Fan 1
3 x 90 mm
3 x 90 mm
Cooler-Type
Air cooling
Air cooling
Noise (Idle)
0 dB
0 dB
More information
The SAPPHIRE Radeon RX 7900 XTX 24GB is equipped with a total of 3 Axial main fans.
The SAPPHIRE Radeon RX 7900 XT 20GB has 3 Axial main fans that cool the GPU and memory.
Connectivity
Connectivity
SAPPHIRE Radeon RX 7900 XTX 24GB
SAPPHIRE Radeon RX 7900 XT 20GB
Max. Displays
4
4
HDCP
2.3
2.3
HDMI
1x HDMI 2.1
1x HDMI 2.1
DisplayPort
2x DP 2.1
2x DP 2.1
USB-C
1
1
More information
Up to 4 screens can be operated with the SAPPHIRE Radeon RX 7900 XTX 24GB.
The SAPPHIRE Radeon RX 7900 XT 20GB supports the operation of a maximum of 4 monitors.
Featureset
Featureset
SAPPHIRE Radeon RX 7900 XTX 24GB
SAPPHIRE Radeon RX 7900 XT 20GB
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 SAPPHIRE Radeon RX 7900 XT 20GB is 7680x4320 pixels.
Supported Video Codecs
Supported Video Codecs
SAPPHIRE Radeon RX 7900 XTX 24GB
SAPPHIRE Radeon RX 7900 XT 20GB
h264
Decode / Encode
Decode / Encode
h265 / HEVC
Decode / Encode
Decode / Encode
VP8
Decode / Encode
Decode / Encode
VP9
Decode / Encode
Decode / Encode
AV1
Decode / Encode
Decode / Encode
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
SAPPHIRE Radeon RX 7900 XT 20GB
Length
287 mm
276 mm
Height
123 mm
113 mm
Width
51 mm
51 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 SAPPHIRE Radeon RX 7900 XT 20GB needs the space of 3 PCIe-Slots in the case and has a PCIe 4 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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