AMD Radeon RX 7800 vs NVIDIA GeForce RTX 4090

VS

AMD Radeon RX 7800

NVIDIA GeForce RTX 4090

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 24GB VRAM GeForce RTX 4090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 's Advantages

Boost Clock has increased by 11% (2800MHz vs 2520MHz)

Lower TDP (300W vs 450W)

NVIDIA GeForce RTX 4090 's Advantages

More VRAM (24GB vs 16GB)

Larger VRAM bandwidth (1.01TB/s vs 576.0GB/s)

12544 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7800

37.32 TFLOPS

GeForce RTX 4090 +121%

82.58 TFLOPS

Radeon RX 7800

VS

GeForce RTX 4090

Graphics Card

Jan 2023

Release Date

Sep 2022

Navi III

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1800 MHz

Base Clock

2235 MHz

2800 MHz

Boost Clock

2520 MHz

2250 MHz

Memory Clock

1313 MHz

Memory

16GB

Memory Size

24GB

GDDR6

Memory Type

GDDR6X

256bit

Memory Bus

384bit

576.0GB/s

Bandwidth

1.01TB/s

Render Config

60

Compute Units

-

SM Count

128

3840

Shading Units

16384

240

TMUs

512

128

ROPs

176

-

Tensor Cores

512

60

RT Cores

128

128 KB per Array

L1 Cache

128 KB (per SM)

4 MB

L2 Cache

72 MB

64 MB

L3 Cache

-

Theoretical Performance

358.4 GPixel/s

Pixel Rate

443.5 GPixel/s

672.0 GTexel/s

Texture Rate

1290 GTexel/s

86.02 TFLOPS

FP16 (half)

82.58 TFLOPS

43.01 TFLOPS

FP32 (float)

82.58 TFLOPS

1344 GFLOPS

FP64 (double)

1290 GFLOPS

Board Design

300W

TDP

450W

700 W

Suggested PSU

850 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

1x HDMI 2.13x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 32

GPU Name

AD102

Navi 32 XT

GPU Variant

AD102-300-A1

RDNA 3.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

Unknown

Transistors

76.3 billion

346 mm²

Die Size

609 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.9

6.7

Shader Model

6.8

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