AMD Radeon RX 7800 XT vs AMD Radeon RX 6900 XTX

VS

AMD Radeon RX 7800 XT AMD Radeon RX 6900 XTX

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 XT and 16GB VRAM Radeon RX 6900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 XT 's Advantages

Larger VRAM bandwidth (624.1GB/s vs 576.0GB/s)

Lower TDP (263W vs 330W)

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock has increased by 0% (2435MHz vs 2430MHz)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7800 XT +49%

37.32 TFLOPS

Radeon RX 6900 XTX

24.93 TFLOPS

Radeon RX 7800 XT

VS

Radeon RX 6900 XTX

Graphics Card

Aug 2023

Release Date

Unknown

Navi III

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1295 MHz

Base Clock

2075 MHz

2430 MHz

Boost Clock

2435 MHz

2438 MHz

Memory Clock

2250 MHz

Memory

16GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

256bit

624.1GB/s

Bandwidth

576.0GB/s

Render Config

-

SM Count

-

60

Compute Units

80

3840

Shading Units

5120

240

TMUs

320

96

ROPs

128

-

Tensor Cores

-

60

RT Cores

80

128 KB per Array

L1 Cache

128 KB per Array

4 MB

L2 Cache

4 MB

Theoretical Performance

233.3 GPixel/s

Pixel Rate

311.7 GPixel/s

583.2 GTexel/s

Texture Rate

779.2 GTexel/s

74.65 TFLOPS

FP16 (half)

49.87 TFLOPS

37.32 TFLOPS

FP32 (float)

24.93 TFLOPS

1166 GFLOPS

FP64 (double)

1.558 TFLOPS

Graphics Processor

Navi 32

GPU Name

Navi 21

Navi 32 XT (215-180000006)

GPU Variant

Navi 21 XTXH (215-121000247)

RDNA 3.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

28.1 billion

Transistors

26.8 billion

346 mm²

Die Size

520 mm²

Board Design

263W

TDP

330W

600 W

Suggested PSU

700 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

2x 8-pin

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.3

-

CUDA

-

6.7

Shader Model

6.5

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