AMD Radeon RX 6600 vs NVIDIA T400

VS

AMD Radeon RX 6600 NVIDIA T400

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 and 2GB VRAM T400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 's Advantages

Boost Clock has increased by 75% (2491MHz vs 1425MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 80.00GB/s)

1408 additional rendering cores

NVIDIA T400 's Advantages

Lower TDP (30W vs 132W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 +716%

8.928 TFLOPS

T400

1.094 TFLOPS

Radeon RX 6600

VS

T400

Graphics Card

Oct 2021

Release Date

May 2021

Navi II

Generation

Quadro

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1626 MHz

Base Clock

420 MHz

2491 MHz

Boost Clock

1425 MHz

1750 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

64bit

224.0GB/s

Bandwidth

80.00GB/s

Render Config

-

SM Count

6

28

Compute Units

-

1792

Shading Units

384

112

TMUs

24

64

ROPs

16

-

Tensor Cores

-

28

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

1024 KB

Theoretical Performance

159.4 GPixel/s

Pixel Rate

22.80 GPixel/s

279.0 GTexel/s

Texture Rate

34.20 GTexel/s

17.86 TFLOPS

FP16 (half)

2.189 TFLOPS

8.928 TFLOPS

FP32 (float)

1094 GFLOPS

558.0 GFLOPS

FP64 (double)

34.20 GFLOPS

Graphics Processor

Navi 23

GPU Name

TU117

Navi 23 XL (215-130000016)

GPU Variant

-

RDNA 2.0

Architecture

Turing

TSMC

Foundry

TSMC

7 nm

Process Size

12 nm

11.06 billion

Transistors

4.7 billion

237 mm²

Die Size

200 mm²

Board Design

132W

TDP

30W

300 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

3x mini-DisplayPort 1.4a

1x 8-pin

Power Connectors

None

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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