AMD Radeon RX 6600 vs NVIDIA GeForce 8400 GS PCI

VS

AMD Radeon RX 6600

NVIDIA GeForce 8400 GS PCI

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 and 512MB VRAM GeForce 8400 GS PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 's Advantages

Released 13 years and 10 months late

Boost Clock2491MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (224.0GB/s vs 5.328GB/s)

1784 additional rendering cores

NVIDIA GeForce 8400 GS PCI 's Advantages

Lower TDP (25W vs 132W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 +40481%

8.928 TFLOPS

GeForce 8400 GS PCI

0.022 TFLOPS

Radeon RX 6600

VS

GeForce 8400 GS PCI

Graphics Card

Oct 2021

Release Date

Dec 2007

Navi II

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCI

Clock Speeds

1626 MHz

Base Clock

-

2491 MHz

Boost Clock

-

1750 MHz

Memory Clock

333 MHz

Memory

8GB

Memory Size

512MB

GDDR6

Memory Type

DDR2

128bit

Memory Bus

64bit

224.0GB/s

Bandwidth

5.328GB/s

Render Config

28

Compute Units

-

SM Count

1

1792

Shading Units

8

112

TMUs

4

64

ROPs

4

-

28

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

16 KB

32 MB

L3 Cache

-

Theoretical Performance

159.4 GPixel/s

Pixel Rate

2.268 GPixel/s

279.0 GTexel/s

Texture Rate

2.268 GTexel/s

17.86 TFLOPS

FP16 (half)

-

8.928 TFLOPS

FP32 (float)

22.40 GFLOPS

558.0 GFLOPS

FP64 (double)

-

Board Design

132W

TDP

25W

300 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x S-Video 1x DMS-59

1x 8-pin

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

G98

Navi 23 XL (215-130000016)

GPU Variant

G98-400-U2

RDNA 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

7 nm

Process Size

65 nm

11.06 billion

Transistors

0.21 billion

237 mm²

Die Size

86 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

1.1

6.5

Shader Model

4.0

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