ASRock RX 6800 Phantom Gaming D OC vs MSI RTX 5090 LIGHTNING Z

Comparison of ASRock RX 6800 Phantom Gaming D OC with 16 GB GDDR6 and 3,840 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 ASRock RX 6800 Phantom Gaming D OC by 347.72% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

ASRock RX 6800 Phantom Gaming D OC

10.5

ASRock RX 6800 Phantom Gaming D OC

10.5
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

16 GB
🔥 +100% 32 ГБ

Memory Type

GDDR6 GDDR7

Memory Bandwidth

512.0 GB/s
🔥 1.79 TB/s

Memory Bus Width

256 бит 512 бит

ML Performance

FP16 (Half Precision)

33.64 TFLOPS
🔥 +253% 118.8 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

16.82 TFLOPS
🔥 +606% 118.8 TFLOPS

FP64 (Double Precision)

1.0512 TFLOPS
🔥 +77% 1.856 TFLOPS

CUDA Cores

3,840
🔥 +467% 21,760

RT Cores

60
🔥 +183% 170

Architecture & Compatibility

GPU Architecture

RDNA 2.0 Blackwell 2.0

SM (Streaming Multiprocessor)

No
🔥 170

PCIe Version

PCIe 4.0 x16 PCIe 5.0 x16

ML Software Support

CUDA Version

No 12.0

Clocks & Performance

Base Clock

1,850
🔥 +9% 2,017

Boost Clock

2,190
🔥 +25% 2,730

Memory Clock

🔥 +14% 2,000
1,750

Power Consumption

Recommended PSU

🔥 -57% 600 W
1400 W

Power Connector

2x 8-pin
🔥 2x 16-pin

TDP/TGP

🔥 -75% 250 W
1000 W

Rendering

Texture Units (TMU)

240
🔥 +183% 680

ROP

60
🔥 +183% 170

L2 Cache

4 MB
🔥 +2,300% 96 MB

Additional

Slots

Triple-slot Triple-slot

Release Date

Oct. 28, 2020 Jan. 6, 2026

Display Outputs

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

1x HDMI 2.1
3x DisplayPort 1.4a
1x HDMI 2.1b
3x DisplayPort 2.1b

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

Renting is cheaper than buying