AMD Radeon RX 6800 vs NVIDIA T400

VS

AMD Radeon RX 6800

NVIDIA T400

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 and 2GB VRAM T400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 's Advantages

Boost Clock has increased by 48% (2105MHz vs 1425MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 80.00GB/s)

3456 additional rendering cores

NVIDIA T400 's Advantages

Released 7 months late

Lower TDP (30W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 +1378%

16.17 TFLOPS

T400

1.094 TFLOPS

Radeon RX 6800

VS

T400

Graphics Card

Oct 2020

Release Date

May 2021

Navi II

Generation

Quadro

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1700 MHz

Base Clock

420 MHz

2105 MHz

Boost Clock

1425 MHz

2000 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

64bit

512.0GB/s

Bandwidth

80.00GB/s

Render Config

60

Compute Units

-

SM Count

6

3840

Shading Units

384

240

TMUs

24

96

ROPs

16

-

60

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

1024 KB

128 MB

L3 Cache

-

Theoretical Performance

202.1 GPixel/s

Pixel Rate

22.80 GPixel/s

505.2 GTexel/s

Texture Rate

34.20 GTexel/s

32.33 TFLOPS

FP16 (half)

2.189 TFLOPS

16.17 TFLOPS

FP32 (float)

1094 GFLOPS

1010 GFLOPS

FP64 (double)

34.20 GFLOPS

Board Design

250W

TDP

30W

600 W

Suggested PSU

200 W

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

Outputs

3x mini-DisplayPort 1.4a

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 21

GPU Name

TU117

Navi 21 XL (215-121000187)

GPU Variant

-

RDNA 2.0

Architecture

Turing

TSMC

Foundry

TSMC

7 nm

Process Size

12 nm

26.8 billion

Transistors

4.7 billion

520 mm²

Die Size

200 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

7.5

6.5

Shader Model

6.6

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