AMD Radeon Sky 900 vs MSI RTX 5090 LIGHTNING Z

Comparison of AMD Radeon Sky 900 with 3 GB GDDR5 and 1,792 cores vs MSI RTX 5090 LIGHTNING Z with 32 GB GDDR7 and 21,760 cores.

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Performance Rating

MSI RTX 5090 LIGHTNING Z outperforms AMD Radeon Sky 900 by 1,356.48% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

AMD Radeon Sky 900

3.2

AMD Radeon Sky 900

3.2
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

MSI RTX 5090 LIGHTNING Z

47.2

MSI RTX 5090 LIGHTNING Z

47.2

Contents:

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

Memory

Memory Size

3 GB ×2 (6 ГБ)
🔥 +967% 32 ГБ

Memory Type

GDDR5 GDDR7

Memory Bandwidth

240.0 GB/s ×2 (480 GB/s)
🔥 1.79 TB/s

Memory Bus Width

384 бит ×2 (768 бит) 512 бит

ML Performance

FP16 (Half Precision)

No
🔥 118.8 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

3.405 TFLOPS
🔥 +3,389% 118.8 TFLOPS

FP64 (Double Precision)

0.8512 TFLOPS
🔥 +118% 1.856 TFLOPS

CUDA Cores

1,792 ×2 (3584)
🔥 +1,114% 21,760

RT Cores

No
🔥 170

Architecture & Compatibility

GPU Architecture

GCN 1.0 Blackwell 2.0

SM (Streaming Multiprocessor)

No
🔥 170

PCIe Version

PCIe 3.0 x16 PCIe 5.0 x16

ML Software Support

CUDA Version

No 12.0

Clocks & Performance

Base Clock

825
🔥 +144% 2,017

Boost Clock

950
🔥 +187% 2,730

Memory Clock

1,250
🔥 +40% 1,750

Power Consumption

Recommended PSU

🔥 -50% 700 W
1400 W

Power Connector

2x 8-pin
🔥 2x 16-pin

TDP/TGP

🔥 -70% 300 W
1000 W

Rendering

Texture Units (TMU)

112 ×2 (224)
🔥 +507% 680

ROP

No
🔥 170

L2 Cache

768 KB
🔥 96 MB

Additional

Slots

Dual-slot Triple-slot

Release Date

March 27, 2013 Jan. 6, 2026

Display Outputs

1x DVI
1x mini-DisplayPort 1.2
1x HDMI 2.1b
3x DisplayPort 2.1b

1x HDMI 2.1b
3x DisplayPort 2.1b
1x USB Type-C

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