AMD Radeon RX 6900 XT vs NVIDIA GeForce RTX 4070 GDDR6

VS

AMD Radeon RX 6900 XT

NVIDIA GeForce RTX 4070 GDDR6

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 12GB VRAM GeForce RTX 4070 GDDR6 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XT 's Advantages

More VRAM (16GB vs 12GB)

Larger VRAM bandwidth (512.0GB/s vs 480.0GB/s)

NVIDIA GeForce RTX 4070 GDDR6 's Advantages

Released 3 years and 10 months late

Boost Clock has increased by 10% (2475MHz vs 2250MHz)

768 additional rendering cores

Lower TDP (200W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XT

23.04 TFLOPS

GeForce RTX 4070 GDDR6 +26%

29.15 TFLOPS

3DMark Time Spy

Radeon RX 6900 XT +17%

20932

GeForce RTX 4070 GDDR6

17853

Radeon RX 6900 XT

VS

GeForce RTX 4070 GDDR6

Graphics Card

Oct 2020

Release Date

Aug 2024

Navi II

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1825 MHz

Base Clock

1920 MHz

2250 MHz

Boost Clock

2475 MHz

2000 MHz

Memory Clock

2500 MHz

Memory

16GB

Memory Size

12GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

192bit

512.0GB/s

Bandwidth

480.0GB/s

Render Config

80

Compute Units

-

SM Count

46

5120

Shading Units

5888

320

TMUs

184

128

ROPs

64

-

Tensor Cores

184

80

RT Cores

46

128 KB per Array

L1 Cache

128 KB (per SM)

4 MB

L2 Cache

36 MB

128 MB

L3 Cache

-

Theoretical Performance

288.0 GPixel/s

Pixel Rate

158.4 GPixel/s

720.0 GTexel/s

Texture Rate

455.4 GTexel/s

46.08 TFLOPS

FP16 (half)

29.15 TFLOPS

23.04 TFLOPS

FP32 (float)

29.15 TFLOPS

1440 GFLOPS

FP64 (double)

455.4 GFLOPS

Board Design

300W

TDP

200W

700 W

Suggested PSU

550 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

AD104

Navi 21 XTX (215-121000167)

GPU Variant

AD104-2XX-A1

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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