NVIDIA B200 SXM 192 GB vs NVIDIA A40 PCIe

VS

We compared two Desktop platform GPUs: 96GB VRAM B200 SXM 192 GB and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA B200 SXM 192 GB 's Advantages

Released 3 years and 3 months late

Boost Clock has increased by 6% (1837MHz vs 1740MHz)

More VRAM (96GB vs 48GB)

Larger VRAM bandwidth (4100GB/s vs 695.8GB/s)

6144 additional rendering cores

NVIDIA A40 PCIe 's Advantages

Lower TDP (300W vs 1000W)

Score

Benchmark

FP32 (float)

B200 SXM 192 GB +65%

62.08 TFLOPS

A40 PCIe

37.42 TFLOPS

B200 SXM 192 GB

VS

A40 PCIe

Graphics Card

Jan 2024

Release Date

Oct 2020

Tesla Blackwell

Generation

Tesla

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1665 MHz

Base Clock

1305 MHz

1837 MHz

Boost Clock

1740 MHz

2000 MHz

Memory Clock

1812 MHz

Memory

96GB

Memory Size

48GB

HBM3e

Memory Type

GDDR6

4096bit

Memory Bus

384bit

4100GB/s

Bandwidth

695.8GB/s

Render Config

132

SM Count

84

-

Compute Units

-

16896

Shading Units

10752

528

TMUs

336

24

ROPs

112

528

Tensor Cores

336

-

RT Cores

84

256 KB (per SM)

L1 Cache

128 KB (per SM)

50 MB

L2 Cache

6 MB

Theoretical Performance

44.09 GPixel/s

Pixel Rate

194.9 GPixel/s

969.9 GTexel/s

Texture Rate

584.6 GTexel/s

248.3 TFLOPS

FP16 (half)

37.42 TFLOPS

62.08 TFLOPS

FP32 (float)

37.42 TFLOPS

31.04 TFLOPS

FP64 (double)

584.6 GFLOPS

Graphics Processor

GB100

GPU Name

GA102

-

GPU Variant

-

Blackwell

Architecture

Ampere

TSMC

Foundry

Samsung

5 nm

Process Size

8 nm

208 billion

Transistors

28.3 billion

Unknown

Die Size

628 mm²

Board Design

1000W

TDP

300W

1400 W

Suggested PSU

700 W

No outputs

Outputs

3x DisplayPort 1.4a

-

Power Connectors

8-pin EPS

Graphics Features

N/A

DirectX

12 Ultimate (12_2)

N/A

OpenGL

4.6

3.0

OpenCL

3.0

N/A

Vulkan

1.3

9.0

CUDA

8.6

N/A

Shader Model

6.6

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