AMD Radeon RX 7900 XTX vs NVIDIA GeForce 8400

VS

AMD Radeon RX 7900 XTX

NVIDIA GeForce 8400

We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7900 XTX and 256MB VRAM GeForce 8400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XTX 's Advantages

Released 14 years and 11 months late

Boost Clock2498MHz

More VRAM (24GB vs 256GB)

Larger VRAM bandwidth (960.0GB/s vs 8.000GB/s)

6136 additional rendering cores

NVIDIA GeForce 8400 's Advantages

Lower TDP (25W vs 355W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 XTX +292233%

61.39 TFLOPS

GeForce 8400

0.021 TFLOPS

Radeon RX 7900 XTX

VS

GeForce 8400

Graphics Card

Nov 2022

Release Date

Dec 2007

Navi III

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1929 MHz

Base Clock

-

2498 MHz

Boost Clock

-

2500 MHz

Memory Clock

500 MHz

Memory

24GB

Memory Size

256MB

GDDR6

Memory Type

DDR2

384bit

Memory Bus

64bit

960.0GB/s

Bandwidth

8.000GB/s

Render Config

96

Compute Units

-

SM Count

1

6144

Shading Units

8

384

TMUs

4

192

ROPs

4

-

96

RT Cores

-

256 KB per Array

L1 Cache

-

6 MB

L2 Cache

16 KB

96 MB

L3 Cache

-

Theoretical Performance

479.6 GPixel/s

Pixel Rate

2.160 GPixel/s

959.2 GTexel/s

Texture Rate

2.160 GTexel/s

122.8 TFLOPS

FP16 (half)

-

61.39 TFLOPS

FP32 (float)

20.80 GFLOPS

1.918 TFLOPS

FP64 (double)

-

Board Design

355W

TDP

25W

750 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 31

GPU Name

G98

Navi 31 XTX (215-145000146)

GPU Variant

-

RDNA 3.0

Architecture

Tesla

TSMC

Foundry

TSMC

5 nm

Process Size

65 nm

57.7 billion

Transistors

0.21 billion

529 mm²

Die Size

86 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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