MSI RTX 5090 LIGHTNING Z vs PowerColor HD 7990 V2

Comparison of MSI RTX 5090 LIGHTNING Z with 32 GB GDDR7 and 21,760 cores vs PowerColor HD 7990 V2 with 3 GB GDDR5 and 2,048 cores.

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Performance Rating

MSI RTX 5090 LIGHTNING Z outperforms PowerColor HD 7990 V2 by 1,168.55% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

MSI RTX 5090 LIGHTNING Z

47.2

MSI RTX 5090 LIGHTNING Z

47.2
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

PowerColor HD 7990 V2

3.7

PowerColor HD 7990 V2

3.7

Contents:

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

Memory

Memory Size

🔥 +967% 32 ГБ
3 GB ×2 (6 ГБ)

Memory Type

GDDR7 GDDR5

Memory Bandwidth

🔥 1.79 TB/s
288.0 GB/s ×2 (576 GB/s)

Memory Bus Width

512 бит 384 бит ×2 (768 бит)

ML Performance

FP16 (Half Precision)

🔥 118.8 TFLOPS
No

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +2,800% 118.8 TFLOPS
4.096 TFLOPS

FP64 (Double Precision)

🔥 +81% 1.856 TFLOPS
1.024 TFLOPS

CUDA Cores

🔥 +962% 21,760
2,048 ×2 (4096)

RT Cores

🔥 170
No

Architecture & Compatibility

GPU Architecture

Blackwell 2.0 GCN 1.0

SM (Streaming Multiprocessor)

🔥 170
No

PCIe Version

PCIe 5.0 x16 PCIe 3.0 x16

ML Software Support

CUDA Version

12.0 No

Clocks & Performance

Base Clock

🔥 +112% 2,017
950

Boost Clock

🔥 +173% 2,730
1,000

Memory Clock

🔥 +17% 1,750
1,500

Power Consumption

Recommended PSU

1400 W
🔥 -46% 750 W

Power Connector

🔥 2x 16-pin
2x 8-pin

TDP/TGP

1000 W
🔥 -62% 375 W

Rendering

Texture Units (TMU)

🔥 +431% 680
128 ×2 (256)

ROP

🔥 170
No

L2 Cache

🔥 96 MB
768 KB

Additional

Slots

Triple-slot Dual-slot

Release Date

Jan. 6, 2026 April 24, 2013

Display Outputs

1x HDMI 2.1b
3x DisplayPort 2.1b

1x HDMI 2.1b
3x DisplayPort 2.1b
1x USB Type-C
1x DVI
4x mini-DisplayPort 1.2

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