NVIDIA B200 SXM 192 GB vs AMD Radeon RX 6800 XT

VS

NVIDIA B200 SXM 192 GB

AMD Radeon RX 6800 XT

We compared two Desktop platform GPUs: 192GB VRAM B200 SXM 192 GB and 16GB VRAM Radeon RX 6800 XT 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

More VRAM (192GB vs 16GB)

Larger VRAM bandwidth (4100GB/s vs 512.0GB/s)

12288 additional rendering cores

AMD Radeon RX 6800 XT 's Advantages

Boost Clock has increased by 22% (2250MHz vs 1837MHz)

Lower TDP (300W vs 1000W)

Score

Benchmark

FP32 (float)

B200 SXM 192 GB +199%

62.08 TFLOPS

Radeon RX 6800 XT

20.74 TFLOPS

B200 SXM 192 GB

VS

Radeon RX 6800 XT

Graphics Card

Jan 2024

Release Date

Oct 2020

Tesla Blackwell

Generation

Navi II

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1665 MHz

Base Clock

1825 MHz

1837 MHz

Boost Clock

2250 MHz

2000 MHz

Memory Clock

2000 MHz

Memory

192GB

Memory Size

16GB

HBM3e

Memory Type

GDDR6

4096bit

Memory Bus

256bit

4100GB/s

Bandwidth

512.0GB/s

Render Config

-

Compute Units

72

132

SM Count

-

16896

Shading Units

4608

528

TMUs

288

24

ROPs

128

528

Tensor Cores

-

RT Cores

72

256 KB (per SM)

L1 Cache

128 KB per Array

50 MB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

44.09 GPixel/s

Pixel Rate

288.0 GPixel/s

969.9 GTexel/s

Texture Rate

648.0 GTexel/s

248.3 TFLOPS

FP16 (half)

41.47 TFLOPS

62.08 TFLOPS

FP32 (float)

20.74 TFLOPS

31.04 TFLOPS

FP64 (double)

1296 GFLOPS

Board Design

1000W

TDP

300W

1400 W

Suggested PSU

700 W

No outputs

Outputs

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

-

Power Connectors

2x 8-pin

Graphics Processor

GB100

GPU Name

Navi 21

-

GPU Variant

Navi 21 XT (215-121000177)

Blackwell

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

208 billion

Transistors

26.8 billion

Unknown

Die Size

520 mm²

Graphics Features

N/A

DirectX

12 Ultimate (12_2)

N/A

OpenGL

4.6

3.0

OpenCL

2.1

N/A

Vulkan

1.3

9.0

CUDA

-

N/A

Shader Model

6.5

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