AMD Radeon RX 6900 XTX vs NVIDIA RTX 4000 Ada Generation

VS

AMD Radeon RX 6900 XTX

NVIDIA RTX 4000 Ada Generation

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 20GB VRAM RTX 4000 Ada Generation to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock has increased by 12% (2435MHz vs 2175MHz)

Larger VRAM bandwidth (576.0GB/s vs 360.0GB/s)

NVIDIA RTX 4000 Ada Generation 's Advantages

More VRAM (20GB vs 16GB)

1024 additional rendering cores

Lower TDP (130W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX

24.93 TFLOPS

RTX 4000 Ada Generation +7%

26.73 TFLOPS

Radeon RX 6900 XTX

VS

RTX 4000 Ada Generation

Graphics Card

Unknown

Release Date

Aug 2023

Navi II

Generation

Quadro Ada(x000A)

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2075 MHz

Base Clock

1500 MHz

2435 MHz

Boost Clock

2175 MHz

2250 MHz

Memory Clock

2250 MHz

Memory

16GB

Memory Size

20GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

160bit

576.0GB/s

Bandwidth

360.0GB/s

Render Config

80

Compute Units

-

SM Count

48

5120

Shading Units

6144

320

TMUs

192

128

ROPs

80

-

Tensor Cores

192

80

RT Cores

48

128 KB per Array

L1 Cache

128 KB (per SM)

4 MB

L2 Cache

48 MB

128 MB

L3 Cache

-

Theoretical Performance

311.7 GPixel/s

Pixel Rate

174.0 GPixel/s

779.2 GTexel/s

Texture Rate

417.6 GTexel/s

49.87 TFLOPS

FP16 (half)

26.73 TFLOPS

24.93 TFLOPS

FP32 (float)

26.73 TFLOPS

1.558 TFLOPS

FP64 (double)

417.6 GFLOPS

Board Design

330W

TDP

130W

700 W

Suggested PSU

300 W

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

Outputs

4x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 21

GPU Name

AD104

Navi 21 XTXH (215-121000247)

GPU Variant

-

RDNA 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

7 nm

Process Size

5 nm

26.8 billion

Transistors

35.8 billion

520 mm²

Die Size

294 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

6.8

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