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AMD Radeon RX 7800 XT vs AMD Radeon RX 7900 XT Comparison

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Radeon RX 7800 XT

16 GB | 37.32 TFLOPS

Radeon RX 7800 XT
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Radeon RX 7900 XT

20 GB | 51.48 TFLOPS

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Radeon RX 7800 XT vs Radeon RX 7900 XT Comparison Overview
Radeon RX 7800 XT Radeon RX 7800 XT
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Radeon RX 7900 XT Radeon RX 7900 XT
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Radeon RX 7800 XT
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Radeon RX 7900 XT
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In this review, we will be comparing Radeon RX 7800 XT and Radeon RX 7900 XT, two GPUs by AMD. Radeon RX 7800 XT was introduced to market in August and was launched in November . There is only 10 months difference between Radeon RX 7800 XT and Radeon RX 7900 XT so we are expecting this to be a fair comparison regarding age and technology level.

Radeon RX 7800 XT and Radeon RX 7900 XT are members of AMD's Navi III (RX 7000) series of GPUs. Below you can find the latest models from this series.

AMD Navi III (RX 7000) Series History
Model Release Date Fabrication Process Performance
Radeon RX 7500 XT
  Compare
June 2025 6 nm 9.421 TFLOPS
Radeon RX 7600
  Compare
May 2023 6 nm 21.75 TFLOPS
Radeon RX 7700
  Compare
June 2025 5 nm 31.95 TFLOPS
Radeon RX 7700 XT
  Compare
August 2023 5 nm 35.17 TFLOPS
Radeon RX 7800 XT
August 2023 5 nm 37.32 TFLOPS
Radeon RX 7900 GRE
  Compare
July 2023 5 nm 45.98 TFLOPS
Radeon RX 7990 XTX
  Compare
January 1970 5 nm 88.45 TFLOPS
Radeon RX 7900 XT
November 2022 5 nm 51.48 TFLOPS

Here is a brief look at the main features of Radeon RX 7800 XT and Radeon RX 7900 XT before getting into our more detailed comparison.

Radeon RX 7800 XT Key Specs

  • Launched in Aug 25th, 2023
  • Brand: AMD
  • GPU: Navi 32
  • Tecnology: 5 nm
  • Clock: 1295 MHz
  • 16 GB Ram
  • Mem. Clock: 2425 MHz 19.4 Gbps effective

Radeon RX 7900 XT Key Specs

  • Launched in Nov 3rd, 2022
  • Brand: AMD
  • GPU: Navi 31
  • Tecnology: 5 nm
  • Clock: 1500 MHz
  • 20 GB Ram
  • Mem. Clock: 2500 MHz 20 Gbps effective

Let's read on the following sections in order to better understand in detail how and compares and decide which one is better for you.

**This post contains affiliate links and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Reasons to choose Radeon RX 7800 XT over Radeon RX 7900 XT
GPU Boost Clock
2430 MHz vs 2394 MHz 36 MHz faster Boost Clock
Thermal Design Power (TDP)
263 W vs 300 W Requires less cooling
Reasons to choose Radeon RX 7900 XT over Radeon RX 7800 XT
Transistors
57,700 million vs 28,100 million Has more transistors
GPU Base Clock
1500 MHz vs 1295 MHz 205 MHz faster Base Clock
Memory Size
20 GB vs 16 GB 4 GB more RAM
Memory Clock
2500 MHz vs 2425 MHz 75 MHz faster Memory Clock
Memory Bus Bits
320 bit vs 256 bit More Memory Bits
Memory Bandwidth
800.0 GB/s vs 620.8 GB/s Wider Memory Bandwith
Render Config Shading Units (RCSU)
5376 vs 3840 Better Visual Effects Performance
Texture Mapping Units (TMU)
336 vs 240 Better Texture Performance
Ray Tracing (RT) Cores
192 vs 96 Better 3D Performance
Raster Operations Pipeline (ROP)
84 vs 60 Better Optical Effects Performance
L0 Cache Memory
64 KB per WGP vs 32 KB per WGP More Cache Memory
L1 Cache Memory
256 KB per Array vs 128 KB per Array More Cache Memory
L2 Cache Memory
6 MB vs 4 MB More Cache Memory
Pixel Rate
459.6 GPixel/s vs 233.3 GPixel/s Better Pixel Rate
Texture Rate
804.4 GTexel/s vs 583.2 GTexel/s Better Texture Performance
Performance
51.48 TFLOPS vs 37.32 TFLOPS More processing power

Common Strengths of Radeon RX 7800 XT and Radeon RX 7900 XT
Process Size
5 nm vs 5 nm Latest Process Technology
Memory Size
16 GB vs 20 GB Both GPUs have more than 4 GB Memory
Memory Clock Speeds
2425 MHz vs 2500 MHz Over Average Memory Clock Speeds
Bus Interface
PCIe 4.0 x16 vs PCIe 4.0 x16 Both have latest Bus type
Common Weaknesses of Radeon RX 7800 XT and Radeon RX 7900 XT
Launch Dates
2023-08-25 vs 2022-11-03 GPUs are older than 1 year
TDP
263 W vs 300 W May face thermal performance problems

PERFORMANCE

FLOPS

FLOPS is commonly used for measuring GPU performance in 32-bit floating-point operations, essential for scientific computing, data analysis, machine learning, and graphics tasks. A higher value indicates faster and more complex calculations, vital for scientific research, simulations, and high-performance computing.

Radeon RX 7800 XT performs above average with 37.32 TFLOPS provides more performance overall GPU's in its class.

Radeon RX 7900 XT performs above average with 51.48 TFLOPS provides more performance overall GPU's in its class.

FLOPS Comparison (TFLOPS)

non-mobile type GPUs

Radeon RX 7800 XT
Radeon RX 7900 XT
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GPU BASE and BOOST CLOCK SPEED

The GPU base clock speed is the standard operating frequency, while the boost clock speed represents the maximum dynamic frequency the GPU can achieve under increased demand. These clock speeds influence the GPU's performance, with the base clock setting the standard level and the boost clock allowing for extra power when needed, enhancing overall responsiveness in demanding applications like gaming.

The base clock speed of the Radeon RX 7800 XT is below average, which could be a sign of lower performance potential.
Base Clock Comparison (MHz)

non-mobile type GPUs

Radeon RX 7800 XT
Radeon RX 7900 XT
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Boost Clock Comparison (MHz)

non-mobile type GPUs

Radeon RX 7800 XT
Radeon RX 7900 XT
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MEMORY SIZE and MEMORY CLOCK SPEED

GPU memory size refers to the storage capacity for visual data. This capacity is crucial for tasks like gaming and graphic-intensive work. Memory clock speed affects how quickly the GPU's memory operates. Faster memory speed improves performance, especially in high-resolution gaming. Balancing memory size and clock speed is vital for a GPU's graphics handling capabilities..

The base clock speed of the Radeon RX 7800 XT is below average, which could be a sign of lower performance potential. The base clock speed of the Radeon RX 7900 XT is below average, you may evaluate it further for your decision.
Memory Size Comparison (GB)

non-mobile type GPUs

Radeon RX 7800 XT
Radeon RX 7900 XT
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Memory Clock Comparison (MHz)

non-mobile type GPUs

Radeon RX 7800 XT
Radeon RX 7900 XT
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GPU THERMAL DESIGN POWER (TDP)

GPU TDP, or Thermal Design Power, quantifies the maximum heat a graphics processing unit (GPU) generates under load. It's vital for selecting appropriate cooling solutions and power efficiency. Higher TDP GPUs require better cooling, while lower TDP GPUs are more power-efficient. Understanding TDP aids in choosing the right GPU for a system.

Radeon RX 7800 XT better than average with 263.00 W TDP in its class.

Radeon RX 7900 XT better than average with 300.00 W TDP in its class.

TDP Comparison (Watts)

non-mobile type GPUs

Radeon RX 7800 XT
Radeon RX 7900 XT
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Radeon RX 7800 XT vs Radeon RX 7900 XT: Specs Comparison Table

In this section, we will be comparing the specifications the Radeon RX 7800 XT and the Radeon RX 7900 XT.

Processor
Model Radeon RX 7800 XT Radeon RX 7900 XT
Generation Navi III (RX 7000) Navi III (RX 7000)
Predecessor Navi II Navi II
Release Date 2023-08-25 2022-11-03
Brand AMD AMD
GPU Name Navi 32 Navi 31
Architecture RDNA 3.0 RDNA 3.0
Foundry TSMC TSMC
Process Size 5 nm 5 nm
Number of Transistors 28,100 million 57,700 million
Density of Transistors 81.2M / mm² 109.1M / mm²
Die Size 346 mm² 529 mm²
Package MCM MCM
GPU Variant Navi 32 XT (215-180000006) Navi 31 XT (215-145000156)
GPU Base Clock Speed 1295 MHz 1500 MHz
GPU Clock Speed 2430 MHz 2394 MHz
Game Clock Speed 2124 MHz 2025 MHz
Memory
Memory 16 GB 20 GB
Memory Type GDDR6 GDDR6
Memory Frequency 2425 MHz 2500 MHz
Memory Bus 256 bit 320 bit
Memory Bandwith 620.8 GB/s 800.0 GB/s
Bus Interface PCIe 4.0 x16 PCIe 4.0 x16
Render Configurations
Shading Units 3840 5376
TMUs 240 336
ROPs 96 192
Config Units 60 84
RT Cores 60 84
L0 Cache 32 KB per WGP 64 KB per WGP
L1 Cache 128 KB per Array 256 KB per Array
L2 Cache 4 MB 6 MB
L3 Cache 64 MB 80 MB
Performance and Features
Pixel Rate 233.3 GPixel/s 459.6 GPixel/s
Texture Rate 583.2 GTexel/s 804.4 GTexel/s
DirectX 12 Ultimate 12 Ultimate
OpenGL 4.6 4.6
OpenCL 2.2 2.2
Vulkan 1.3 1.3
Shader Model 6.7 6.7
FP16 Half 74.65 TFLOPS (2:1) 103.0 TFLOPS (2:1)
FP32 37.32 TFLOPS 51.48 TFLOPS
FP64 double 1,166 GFLOPS (1:32) 1.609 TFLOPS (1:32)
OTHER
Length 267 mm 10.5 inches 276 mm 10.9 inches
Width 111 mm 4.4 inches 110 mm 4.3 inches
Height 50 mm 2 inches 51 mm 2 inches
Suggested Power Supply 600 W 700 W
Slot Width Dual-slot Dual-slot
TDP 263 W 300 W
Outputs 1x HDMI 2.1a3x DisplayPort 2.1 1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Power Connectors 2x 8-pin 2x 8-pin
Latest Integrated GPUs
UHD Graphics 730
UHD Graphics 730
January 2023 | 10 nm
Radeon Graphics 128SP
Radeon Graphics 128SP
September 2022 | 5 nm
UHD Graphics 770
UHD Graphics 770
September 2022 | 10 nm
UHD Graphics 710
UHD Graphics 710
January 2022 | 10 nm
Radeon Graphics 384SP
Radeon Graphics 384SP
April 2021 | 7 nm
Radeon Graphics 448SP
Radeon Graphics 448SP
April 2021 | 7 nm
UHD Graphics 750
UHD Graphics 750
March 2021 | 14 nm+++
Radeon Graphics 512SP
Radeon Graphics 512SP
January 2021 | 7 nm

Latest Mobile GPUs
Arc A530M
Arc A530M
August 2023 | 6 nm
Arc A570M
Arc A570M
August 2023 | 6 nm
Arc Pro A60M
Arc Pro A60M
June 2023 | 6 nm
RTX 2000 Max-Q Ada Generation
RTX 2000 Max-Q Ada Generation
March 2023 | 5 nm
RTX 2000 Mobile Ada Generation
RTX 2000 Mobile Ada Generation
March 2023 | 5 nm
RTX 3000 Mobile Ada Generation
RTX 3000 Mobile Ada Generation
March 2023 | 5 nm
RTX 3500 Mobile Ada Generation
RTX 3500 Mobile Ada Generation
March 2023 | 5 nm
RTX 4000 Mobile Ada Generation
RTX 4000 Mobile Ada Generation
March 2023 | 5 nm

Latest Non-Mobile GPUs
Radeon RX 7700 XT
Radeon RX 7700 XT
August 2023 | 5 nm
Radeon RX 7800 XT
Radeon RX 7800 XT
August 2023 | 5 nm
RTX 4000 Ada Generation
RTX 4000 Ada Generation
August 2023 | 5 nm
RTX 4500 Ada Generation
RTX 4500 Ada Generation
August 2023 | 5 nm
RTX 5000 Ada Generation
RTX 5000 Ada Generation
August 2023 | 5 nm
Radeon PRO W7500
Radeon PRO W7500
August 2023 | 6 nm
Radeon PRO W7600
Radeon PRO W7600
August 2023 | 6 nm
Radeon RX 7900 GRE
Radeon RX 7900 GRE
July 2023 | 5 nm
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