AMD Radeon RX 6800 XT vs NVIDIA GeForce 8400 GS PCI Rev. 2

VS

AMD Radeon RX 6800 XT NVIDIA GeForce 8400 GS PCI Rev. 2

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 512MB VRAM GeForce 8400 GS PCI Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 XT 's Advantages

Released 13 years and 6 months late

Boost Clock2250MHz

Larger VRAM bandwidth (512.0GB/s vs 8.000GB/s)

4592 additional rendering cores

NVIDIA GeForce 8400 GS PCI Rev. 2 's Advantages

Lower TDP (40W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT +53079%

20.74 TFLOPS

GeForce 8400 GS PCI Rev. 2

0.039 TFLOPS

Radeon RX 6800 XT

VS

GeForce 8400 GS PCI Rev. 2

Graphics Card

Oct 2020

Release Date

Apr 2007

Navi II

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCI

Clock Speeds

1825 MHz

Base Clock

-

2250 MHz

Boost Clock

-

2000 MHz

Memory Clock

500 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

64bit

512.0GB/s

Bandwidth

8.000GB/s

Render Config

-

SM Count

2

72

Compute Units

-

4608

Shading Units

16

288

TMUs

8

128

ROPs

4

-

Tensor Cores

-

72

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

32 KB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

2.080 GPixel/s

648.0 GTexel/s

Texture Rate

4.160 GTexel/s

41.47 TFLOPS

FP16 (half)

-

20.74 TFLOPS

FP32 (float)

39.36 GFLOPS

1296 GFLOPS

FP64 (double)

-

Graphics Processor

Navi 21

GPU Name

GT218

Navi 21 XT (215-121000177)

GPU Variant

-

RDNA 2.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

26.8 billion

Transistors

0.26 billion

520 mm²

Die Size

57 mm²

Board Design

300W

TDP

40W

700 W

Suggested PSU

200 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

1x DVI 1x HDMI 1x VGA

2x 8-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

11.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

1.2

6.5

Shader Model

4.1

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