NVIDIA GeForce RTX 4090 vs AMD Radeon RX 7950 XT

VS

NVIDIA GeForce RTX 4090 AMD Radeon RX 7950 XT

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 20GB VRAM Radeon RX 7950 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 's Advantages

More VRAM (24GB vs 20GB)

Larger VRAM bandwidth (1008GB/s vs 800.0GB/s)

11008 additional rendering cores

AMD Radeon RX 7950 XT 's Advantages

Boost Clock has increased by 19% (3000MHz vs 2520MHz)

Lower TDP (300W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 +28%

82.58 TFLOPS

Radeon RX 7950 XT

64.51 TFLOPS

GeForce RTX 4090

VS

Radeon RX 7950 XT

Graphics Card

Sep 2022

Release Date

Unknown

GeForce 40

Generation

Navi III

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2235 MHz

Base Clock

2000 MHz

2520 MHz

Boost Clock

3000 MHz

1313 MHz

Memory Clock

2500 MHz

Memory

24GB

Memory Size

20GB

GDDR6X

Memory Type

GDDR6

384bit

Memory Bus

320bit

1008GB/s

Bandwidth

800.0GB/s

Render Config

128

SM Count

-

Compute Units

84

16384

Shading Units

5376

512

TMUs

336

176

ROPs

192

512

Tensor Cores

-

128

RT Cores

84

128 KB (per SM)

L1 Cache

256 KB per Array

72 MB

L2 Cache

6 MB

Theoretical Performance

443.5 GPixel/s

Pixel Rate

576.0 GPixel/s

1290 GTexel/s

Texture Rate

1008 GTexel/s

82.58 TFLOPS

FP16 (half)

129.0 TFLOPS

82.58 TFLOPS

FP32 (float)

64.51 TFLOPS

1290 GFLOPS

FP64 (double)

2.016 TFLOPS

Graphics Processor

AD102

GPU Name

Navi 31

AD102-300-A1

GPU Variant

Navi 31 XT+

Ada Lovelace

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

76.3 billion

Transistors

57.7 billion

609 mm²

Die Size

529 mm²

Board Design

450W

TDP

300W

850 W

Suggested PSU

700 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 16-pin

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.2

1.3

Vulkan

1.3

8.9

CUDA

-

6.7

Shader Model

6.7

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