NVIDIA RTX 4000 Ada Generation vs AMD Radeon RX 6900 XT

VS

NVIDIA RTX 4000 Ada Generation

AMD Radeon RX 6900 XT

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

Main Differences

NVIDIA RTX 4000 Ada Generation 's Advantages

Released 2 years and 10 months late

More VRAM (20GB vs 16GB)

1024 additional rendering cores

Lower TDP (130W vs 300W)

AMD Radeon RX 6900 XT 's Advantages

Boost Clock has increased by 3% (2250MHz vs 2175MHz)

Larger VRAM bandwidth (512.0GB/s vs 360.0GB/s)

Score

Benchmark

FP32 (float)

RTX 4000 Ada Generation +16%

26.73 TFLOPS

Radeon RX 6900 XT

23.04 TFLOPS

Blender

RTX 4000 Ada Generation +60%

4737

Radeon RX 6900 XT

2948

RTX 4000 Ada Generation

VS

Radeon RX 6900 XT

Graphics Card

Aug 2023

Release Date

Oct 2020

Quadro Ada(x000A)

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1500 MHz

Base Clock

1825 MHz

2175 MHz

Boost Clock

2250 MHz

Memory Clock

2000 MHz

Memory

20GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

160bit

Memory Bus

256bit

360.0GB/s

Bandwidth

512.0GB/s

Render Config

-

Compute Units

80

48

SM Count

-

6144

Shading Units

5120

192

TMUs

320

80

ROPs

128

192

Tensor Cores

-

48

RT Cores

80

128 KB (per SM)

L1 Cache

128 KB per Array

48 MB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

174.0 GPixel/s

Pixel Rate

288.0 GPixel/s

417.6 GTexel/s

Texture Rate

720.0 GTexel/s

26.73 TFLOPS

FP16 (half)

46.08 TFLOPS

26.73 TFLOPS

FP32 (float)

23.04 TFLOPS

417.6 GFLOPS

FP64 (double)

1440 GFLOPS

Board Design

130W

TDP

300W

300 W

Suggested PSU

700 W

4x DisplayPort 1.4a

Outputs

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

1x 16-pin

Power Connectors

2x 8-pin

Graphics Processor

AD104

GPU Name

Navi 21

-

GPU Variant

Navi 21 XTX (215-121000167)

Ada Lovelace

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

35.8 billion

Transistors

26.8 billion

294 mm²

Die Size

520 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

8.9

CUDA

-

6.8

Shader Model

6.5

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