AMD Radeon RX 7800 vs AMD Radeon RX 6900 XT

VS

AMD Radeon RX 7800 AMD Radeon RX 6900 XT

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

Main Differences

AMD Radeon RX 7800 's Advantages

Released 2 years and 3 months late

Boost Clock has increased by 24% (2800MHz vs 2250MHz)

Larger VRAM bandwidth (576.0GB/s vs 512.0GB/s)

AMD Radeon RX 6900 XT 's Advantages

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7800 +61%

37.32 TFLOPS

Radeon RX 6900 XT

23.04 TFLOPS

Radeon RX 7800

VS

Radeon RX 6900 XT

Graphics Card

Jan 2023

Release Date

Oct 2020

Navi III

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1800 MHz

Base Clock

1825 MHz

2800 MHz

Boost Clock

2250 MHz

Memory Clock

2000 MHz

Memory

16GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

512.0GB/s

Render Config

-

SM Count

-

60

Compute Units

80

3840

Shading Units

5120

240

TMUs

320

128

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

358.4 GPixel/s

Pixel Rate

288.0 GPixel/s

672.0 GTexel/s

Texture Rate

720.0 GTexel/s

86.02 TFLOPS

FP16 (half)

46.08 TFLOPS

43.01 TFLOPS

FP32 (float)

23.04 TFLOPS

1344 GFLOPS

FP64 (double)

1440 GFLOPS

Graphics Processor

Navi 32

GPU Name

Navi 21

Navi 32 XT

GPU Variant

Navi 21 XTX (215-121000167)

RDNA 3.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

Unknown

Transistors

26.8 billion

346 mm²

Die Size

520 mm²

Board Design

300W

TDP

300W

700 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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