NVIDIA GeForce 8400 vs AMD Radeon RX 6950 XT

VS

NVIDIA GeForce 8400

AMD Radeon RX 6950 XT

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

Main Differences

NVIDIA GeForce 8400 's Advantages

Lower TDP (25W vs 335W)

AMD Radeon RX 6950 XT 's Advantages

Released 14 years and 5 months late

Boost Clock2310MHz

More VRAM (16GB vs 256GB)

Larger VRAM bandwidth (576.0GB/s vs 8.000GB/s)

5112 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400

0.021 TFLOPS

Radeon RX 6950 XT +112519%

23.65 TFLOPS

GeForce 8400

VS

Radeon RX 6950 XT

Graphics Card

Dec 2007

Release Date

May 2022

GeForce 8

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1860 MHz

-

Boost Clock

2310 MHz

500 MHz

Memory Clock

2250 MHz

Memory

256MB

Memory Size

16GB

DDR2

Memory Type

GDDR6

64bit

Memory Bus

256bit

8.000GB/s

Bandwidth

576.0GB/s

Render Config

-

Compute Units

80

1

SM Count

-

8

Shading Units

5120

4

TMUs

320

4

ROPs

128

-

RT Cores

80

-

L1 Cache

128 KB per Array

16 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

2.160 GPixel/s

Pixel Rate

295.7 GPixel/s

2.160 GTexel/s

Texture Rate

739.2 GTexel/s

-

FP16 (half)

47.31 TFLOPS

20.80 GFLOPS

FP32 (float)

23.65 TFLOPS

-

FP64 (double)

1478 GFLOPS

Board Design

25W

TDP

335W

200 W

Suggested PSU

700 W

1x DVI 1x VGA 1x S-Video

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a

None

Power Connectors

2x 8-pin

Graphics Processor

G98

GPU Name

Navi 21

-

GPU Variant

Navi 21 KXTX (215-121000289)

Tesla

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

65 nm

Process Size

7 nm

0.21 billion

Transistors

26.8 billion

86 mm²

Die Size

520 mm²

Graphics Features

11.1 (10_0)

DirectX

12 Ultimate (12_2)

3.3

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.3

1.1

CUDA

-

4.0

Shader Model

6.5

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