AMD Radeon RX 6600 XT vs NVIDIA GeForce 8400 GS PCI

VS

AMD Radeon RX 6600 XT NVIDIA GeForce 8400 GS PCI

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT 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 XT 's Advantages

Released 13 years and 7 months late

Boost Clock2589MHz

Larger VRAM bandwidth (256.0GB/s vs 5.328GB/s)

2040 additional rendering cores

NVIDIA GeForce 8400 GS PCI 's Advantages

Lower TDP (25W vs 160W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 XT +48081%

10.6 TFLOPS

GeForce 8400 GS PCI

0.022 TFLOPS

Radeon RX 6600 XT

VS

GeForce 8400 GS PCI

Graphics Card

Jul 2021

Release Date

Dec 2007

Navi II

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCI

Clock Speeds

1968 MHz

Base Clock

-

2589 MHz

Boost Clock

-

2000 MHz

Memory Clock

333 MHz

Memory

8GB

Memory Size

512MB

GDDR6

Memory Type

DDR2

128bit

Memory Bus

64bit

256.0GB/s

Bandwidth

5.328GB/s

Render Config

-

SM Count

1

32

Compute Units

-

2048

Shading Units

8

128

TMUs

4

64

ROPs

4

-

Tensor Cores

-

32

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

16 KB

Theoretical Performance

165.7 GPixel/s

Pixel Rate

2.268 GPixel/s

331.4 GTexel/s

Texture Rate

2.268 GTexel/s

21.21 TFLOPS

FP16 (half)

-

10.60 TFLOPS

FP32 (float)

22.40 GFLOPS

662.8 GFLOPS

FP64 (double)

-

Graphics Processor

Navi 23

GPU Name

G98

Navi 23 XT (215-130000006)

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

Board Design

160W

TDP

25W

450 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 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

6.7

Shader Model

4.0

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