AMD Radeon RX 6900 XTX vs NVIDIA GeForce RTX 4080 Ti

VS

AMD Radeon RX 6900 XTX

NVIDIA GeForce RTX 4080 Ti

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 16GB VRAM GeForce RTX 4080 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Lower TDP (330W vs 400W)

NVIDIA GeForce RTX 4080 Ti 's Advantages

Boost Clock has increased by 7% (2610MHz vs 2435MHz)

Larger VRAM bandwidth (678.4GB/s vs 576.0GB/s)

8960 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX

24.93 TFLOPS

GeForce RTX 4080 Ti +194%

73.5 TFLOPS

Radeon RX 6900 XTX

VS

GeForce RTX 4080 Ti

Graphics Card

Unknown

Release Date

Unknown

Navi II

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2075 MHz

Base Clock

2340 MHz

2435 MHz

Boost Clock

2610 MHz

2250 MHz

Memory Clock

1325 MHz

Memory

16GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6X

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

678.4GB/s

Render Config

80

Compute Units

-

SM Count

110

5120

Shading Units

14080

320

TMUs

440

128

ROPs

144

-

Tensor Cores

440

80

RT Cores

110

128 KB per Array

L1 Cache

128 KB (per SM)

4 MB

L2 Cache

80 MB

128 MB

L3 Cache

-

Theoretical Performance

311.7 GPixel/s

Pixel Rate

375.8 GPixel/s

779.2 GTexel/s

Texture Rate

1148 GTexel/s

49.87 TFLOPS

FP16 (half)

73.50 TFLOPS

24.93 TFLOPS

FP32 (float)

73.50 TFLOPS

1.558 TFLOPS

FP64 (double)

1148 GFLOPS

Board Design

330W

TDP

400W

700 W

Suggested PSU

800 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 21

GPU Name

AD102

Navi 21 XTXH (215-121000247)

GPU Variant

AD102-225-A1

RDNA 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

7 nm

Process Size

5 nm

26.8 billion

Transistors

76.3 billion

520 mm²

Die Size

609 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.9

6.5

Shader Model

6.7

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