AMD Radeon Instinct MI355X vs BIOSTAR RX 6600 XT

Comparison of AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores vs BIOSTAR RX 6600 XT with 8 GB GDDR6 and 2,048 cores.

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Performance Rating

AMD Radeon Instinct MI355X outperforms BIOSTAR RX 6600 XT by 1,461.27% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

AMD Radeon Instinct MI355X

93.5

AMD Radeon Instinct MI355X

93.5
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

BIOSTAR RX 6600 XT

6.0

BIOSTAR RX 6600 XT

6.0

Contents:

Memory ML Performance Compute Power Architecture & Compatibility ML Software Support Clocks & Performance Power Consumption Rendering Benchmarks Additional

Memory

Memory Size

🔥 +3,500% 288 ГБ
8 ГБ

Memory Type

HBM3e GDDR6

Memory Bandwidth

🔥 8.19 TB/s
256.0 GB/s

Memory Bus Width

8,192 бит 128 бит

ML Performance

FP16 (Half Precision)

🔥 +2,866% 629.1 TFLOPS
21.21 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +642% 78.64 TFLOPS
10.6 TFLOPS

FP64 (Double Precision)

🔥 +11,765% 78.64 TFLOPS
0.6628 TFLOPS

CUDA Cores

🔥 +700% 16,384
2,048

RT Cores

No
🔥 32

Architecture & Compatibility

GPU Architecture

CDNA 4.0 RDNA 2.0

SM (Streaming Multiprocessor)

No No

PCIe Version

PCIe 5.0 x16 PCIe 4.0 x8

ML Software Support

CUDA Version

No No

Clocks & Performance

Base Clock

1,000
🔥 +97% 1,968

Boost Clock

2,400
🔥 +8% 2,589

Memory Clock

2,000 2,000

Power Consumption

TDP/TGP

1400 W
🔥 -89% 160 W

Recommended PSU

1800 W
🔥 -75% 450 W

Power Connector

None 1x 8-pin

Rendering

Texture Units (TMU)

🔥 +700% 1,024
128

ROP

No
🔥 32

L2 Cache

16 MB
🔥 2 MB

Benchmarks

MLPerf, llama2-70b-99.9 (mxfp4)

10 129 tokens/s

MLPerf, llama3.1-405b (mxfp4)

252.4 tokens/s

Additional

Slots

OAM Module Dual-slot

Release Date

July 15, 2025 July 30, 2021

Display Outputs

No outputs
1x HDMI 2.1
3x DisplayPort 1.4a

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