SAPPHIRE Radeon RX 7900 XTX 24GB
vs
SAPPHIRE Radeon RX 7900 XT 20GB


GPU comparison with benchmarks

The SAPPHIRE Radeon RX 7900 XTX 24GB is based on the AMD Radeon RX 7900 XTX (RDNA 3) and has 24 GB GDDR6 graphics memory with a bandwidth of 960 GB/s.

The SAPPHIRE Radeon RX 7900 XT 20GB is based on the AMD Radeon RX 7900 XT (RDNA 3) and has 20 GB GDDR6 graphics memory with a bandwidth of 800 GB/s.

GPU

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.
SAPPHIRE Radeon RX 7900 XTX 24GB GPU SAPPHIRE Radeon RX 7900 XT 20GB
AMD Radeon RX 7900 XTX Based on AMD Radeon RX 7900 XT
Navi 31 GPU Chip Navi 31
RDNA 3 Architecture RDNA 3
96 Streaming Multiprocessors 84
6144 Shader 5376
192 Render Output Units 192
384 Texture Units 336
96 Raytracing Cores 84

Memory

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.

24 GB Memory Size 20 GB
GDDR6 Memory Type GDDR6
2.500 GHz Memory Clock 2.500 GHz
20.0 Gbps Memory Speed 20.0 Gbps
960 GB/s Memory bandwidth 800 GB/s
384 bit Memory Interface 320 bit

Clock Speeds

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

1.900 GHz Base Clock 1.500 GHz
2.500 GHz Boost Clock 2.400 GHz
2.30 GHz Avg (Game) Clock 2.00 GHz
Yes Overclocking Yes

Thermal Design

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.

346 W TDP 308 W
-- TDP (up) --
97 °C Tjunction max 97 °C
2 x 8-Pin PCIe-Power 2 x 8-Pin

Cooler & Fans

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.

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

Connectivity

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.

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

Featureset

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.

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

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 / Encode AV1 Decode / Encode
Decode / Encode VP8 Decode / Encode
Decode / Encode VP9 Decode / Encode

Dimensions

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.

287 mm Length 276 mm
123 mm Height 113 mm
51 mm Width 51 mm
3 PCIe-Slots Width (Slots) 3 PCIe-Slots
-- Weight --
PCIe 4 x 16 GPU Interface PCIe 4 x 16

Additional data

The SAPPHIRE Radeon RX 7900 XTX 24GB has been manufactured with a structure width of 5 nanometers since Q4/2022.

The SAPPHIRE Radeon RX 7900 XT 20GB came on the market in Q4/2022 and will have a structure width of 5 nanometers manufactured.

21322-01-20G Part-no 21323-01-20G
Q4/2022 Release date Q4/2022
999 $ Launch Price 899 $
5 nm Structure size 5 nm
data sheet Documents data sheet

Rate these graphics cards now

Here you can rate the SAPPHIRE Radeon RX 7900 XTX 24GB to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the SAPPHIRE Radeon RX 7900 XT 20GB to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:

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)

SAPPHIRE Radeon RX 7900 XTX 24GB SAPPHIRE Radeon RX 7900 XTX 24GB
24 GB GDDR6
71 fps (avg)

2560x1440 (1440p)

SAPPHIRE Radeon RX 7900 XTX 24GB SAPPHIRE Radeon RX 7900 XTX 24GB
24 GB GDDR6
103 fps (avg)
SAPPHIRE Radeon RX 7900 XT 20GB SAPPHIRE Radeon RX 7900 XT 20GB
20 GB GDDR6
90 fps (avg)

1920x1080 (1080p)

SAPPHIRE Radeon RX 7900 XTX 24GB SAPPHIRE Radeon RX 7900 XTX 24GB
24 GB GDDR6
133 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)

SAPPHIRE Radeon RX 7900 XTX 24GB SAPPHIRE Radeon RX 7900 XTX 24GB
24 GB GDDR6
52 fps (avg)
SAPPHIRE Radeon RX 7900 XT 20GB SAPPHIRE Radeon RX 7900 XT 20GB
20 GB GDDR6
44 fps (avg)

2560x1440 (1440p)

SAPPHIRE Radeon RX 7900 XTX 24GB SAPPHIRE Radeon RX 7900 XTX 24GB
24 GB GDDR6
95 fps (avg)
SAPPHIRE Radeon RX 7900 XT 20GB SAPPHIRE Radeon RX 7900 XT 20GB
20 GB GDDR6
88 fps (avg)

1920x1080 (1080p)

SAPPHIRE Radeon RX 7900 XTX 24GB SAPPHIRE Radeon RX 7900 XTX 24GB
24 GB GDDR6
142 fps (avg)
SAPPHIRE Radeon RX 7900 XT 20GB SAPPHIRE Radeon RX 7900 XT 20GB
20 GB GDDR6
138 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

Geekbench 6 - Vulkan

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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