AMD Radeon RX 6800 XT vs NVIDIA GeForce 8400

VS

AMD Radeon RX 6800 XT NVIDIA GeForce 8400

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT 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 6800 XT 's Advantages

Released 12 years and 10 months late

Boost Clock2250MHz

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

4600 additional rendering cores

NVIDIA GeForce 8400 's Advantages

Lower TDP (25W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT +98661%

20.74 TFLOPS

GeForce 8400

0.021 TFLOPS

Radeon RX 6800 XT

VS

GeForce 8400

Graphics Card

Oct 2020

Release Date

Dec 2007

Navi II

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2250 MHz

Boost Clock

-

2000 MHz

Memory Clock

500 MHz

Memory

16GB

Memory Size

256MB

GDDR6

Memory Type

DDR2

256bit

Memory Bus

64bit

512.0GB/s

Bandwidth

8.000GB/s

Render Config

-

SM Count

1

72

Compute Units

-

4608

Shading Units

8

288

TMUs

4

128

ROPs

4

-

Tensor Cores

-

72

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

16 KB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

2.160 GPixel/s

648.0 GTexel/s

Texture Rate

2.160 GTexel/s

41.47 TFLOPS

FP16 (half)

-

20.74 TFLOPS

FP32 (float)

20.80 GFLOPS

1296 GFLOPS

FP64 (double)

-

Graphics Processor

Navi 21

GPU Name

G98

Navi 21 XT (215-121000177)

GPU Variant

-

RDNA 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

7 nm

Process Size

65 nm

26.8 billion

Transistors

0.21 billion

520 mm²

Die Size

86 mm²

Board Design

300W

TDP

25W

700 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 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

6.5

Shader Model

4.0

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