AMD Radeon RX 7800 XT vs NVIDIA GeForce 8400 GS

VS

AMD Radeon RX 7800 XT

NVIDIA GeForce 8400 GS

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 XT and 256MB VRAM GeForce 8400 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 XT 's Advantages

Released 16 years and 4 months late

Boost Clock2430MHz

More VRAM (16GB vs 256GB)

Larger VRAM bandwidth (624.1GB/s vs 6.400GB/s)

3824 additional rendering cores

NVIDIA GeForce 8400 GS 's Advantages

Lower TDP (40W vs 263W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 XT +128589%

37.32 TFLOPS

GeForce 8400 GS

0.029 TFLOPS

Radeon RX 7800 XT

VS

GeForce 8400 GS

Graphics Card

Aug 2023

Release Date

Apr 2007

Navi III

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

1295 MHz

Base Clock

-

2430 MHz

Boost Clock

-

2438 MHz

Memory Clock

400 MHz

Memory

16GB

Memory Size

256MB

GDDR6

Memory Type

DDR2

256bit

Memory Bus

64bit

624.1GB/s

Bandwidth

6.400GB/s

Render Config

60

Compute Units

-

SM Count

2

3840

Shading Units

16

240

TMUs

8

96

ROPs

4

-

60

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

16 KB

64 MB

L3 Cache

-

Theoretical Performance

233.3 GPixel/s

Pixel Rate

1.836 GPixel/s

583.2 GTexel/s

Texture Rate

3.672 GTexel/s

74.65 TFLOPS

FP16 (half)

-

37.32 TFLOPS

FP32 (float)

29.38 GFLOPS

1166 GFLOPS

FP64 (double)

-

Board Design

263W

TDP

40W

600 W

Suggested PSU

200 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 32

GPU Name

G86

Navi 32 XT (215-180000006)

GPU Variant

G86-213-A2

RDNA 3.0

Architecture

Tesla

TSMC

Foundry

TSMC

5 nm

Process Size

80 nm

28.1 billion

Transistors

0.21 billion

346 mm²

Die Size

127 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.2

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

1.1

6.7

Shader Model

4.0

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