AMD Radeon RX 6950 XT vs NVIDIA GeForce 8400 GS

VS

AMD Radeon RX 6950 XT

NVIDIA GeForce 8400 GS

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6950 XT and 256MB VRAM GeForce 8400 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6950 XT 's Advantages

Released 15 years and 1 months late

Boost Clock2310MHz

More VRAM (16GB vs 256GB)

Larger VRAM bandwidth (576.0GB/s vs 6.400GB/s)

5104 additional rendering cores

NVIDIA GeForce 8400 GS 's Advantages

Lower TDP (40W vs 335W)

Score

Benchmark

FP32 (float)

Radeon RX 6950 XT +81451%

23.65 TFLOPS

GeForce 8400 GS

0.029 TFLOPS

Radeon RX 6950 XT

VS

GeForce 8400 GS

Graphics Card

May 2022

Release Date

Apr 2007

Navi II

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

1860 MHz

Base Clock

-

2310 MHz

Boost Clock

-

2250 MHz

Memory Clock

400 MHz

Memory

16GB

Memory Size

256MB

GDDR6

Memory Type

DDR2

256bit

Memory Bus

64bit

576.0GB/s

Bandwidth

6.400GB/s

Render Config

80

Compute Units

-

SM Count

2

5120

Shading Units

16

320

TMUs

8

128

ROPs

4

-

80

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

16 KB

128 MB

L3 Cache

-

Theoretical Performance

295.7 GPixel/s

Pixel Rate

1.836 GPixel/s

739.2 GTexel/s

Texture Rate

3.672 GTexel/s

47.31 TFLOPS

FP16 (half)

-

23.65 TFLOPS

FP32 (float)

29.38 GFLOPS

1478 GFLOPS

FP64 (double)

-

Board Design

335W

TDP

40W

700 W

Suggested PSU

200 W

1x HDMI 2.1 2x DisplayPort 1.4a

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 21

GPU Name

G86

Navi 21 KXTX (215-121000289)

GPU Variant

G86-213-A2

RDNA 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

7 nm

Process Size

80 nm

26.8 billion

Transistors

0.21 billion

520 mm²

Die Size

127 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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