NVIDIA GeForce 8400 vs NVIDIA A40 PCIe

VS

NVIDIA GeForce 8400

NVIDIA A40 PCIe

We compared two Desktop platform GPUs: 256MB VRAM GeForce 8400 and 48GB VRAM A40 PCIe 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 300W)

NVIDIA A40 PCIe 's Advantages

Released 12 years and 10 months late

Boost Clock1740MHz

More VRAM (48GB vs 256GB)

Larger VRAM bandwidth (695.8GB/s vs 8.000GB/s)

10744 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400

0.021 TFLOPS

A40 PCIe +178090%

37.42 TFLOPS

GeForce 8400

VS

A40 PCIe

Graphics Card

Dec 2007

Release Date

Oct 2020

GeForce 8

Generation

Tesla

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1305 MHz

-

Boost Clock

1740 MHz

500 MHz

Memory Clock

1812 MHz

Memory

256MB

Memory Size

48GB

DDR2

Memory Type

GDDR6

64bit

Memory Bus

384bit

8.000GB/s

Bandwidth

695.8GB/s

Render Config

-

1

SM Count

84

8

Shading Units

10752

4

TMUs

336

4

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

-

L1 Cache

128 KB (per SM)

16 KB

L2 Cache

6 MB

-

Theoretical Performance

2.160 GPixel/s

Pixel Rate

194.9 GPixel/s

2.160 GTexel/s

Texture Rate

584.6 GTexel/s

-

FP16 (half)

37.42 TFLOPS

20.80 GFLOPS

FP32 (float)

37.42 TFLOPS

-

FP64 (double)

584.6 GFLOPS

Board Design

25W

TDP

300W

200 W

Suggested PSU

700 W

1x DVI 1x VGA 1x S-Video

Outputs

3x DisplayPort 1.4a

None

Power Connectors

8-pin EPS

Graphics Processor

G98

GPU Name

GA102

-

Tesla

Architecture

Ampere

TSMC

Foundry

Samsung

65 nm

Process Size

8 nm

0.21 billion

Transistors

28.3 billion

86 mm²

Die Size

628 mm²

Graphics Features

11.1 (10_0)

DirectX

12 Ultimate (12_2)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

1.1

CUDA

8.6

4.0

Shader Model

6.6

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