Sapphire NITRO+ RX 7900 XTX Vapor-X vs Zalman HD 7990

Comparison of Sapphire NITRO+ RX 7900 XTX Vapor-X with 24 GB GDDR6 and 6,144 cores vs Zalman HD 7990 with 3 GB GDDR5 and 2,048 cores.

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Performance Rating

H200 H200
MI325X MI325X
A100 A100

Sapphire NITRO+ RX 7900 XTX Vapor-X

Sapphire NITRO+ RX 7900 XTX Vapor-X

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

Zalman HD 7990

Zalman HD 7990

Contents:

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

Memory

Memory Size

24 GB 3 GB ×2 (6 ГБ)

Memory Type

GDDR6 GDDR5

Memory Bandwidth

960.0 GB/s 288.0 GB/s ×2 (576 GB/s)

Memory Bus Width

384 бит 384 бит ×2 (768 бит)

ML Performance

FP16 (Half Precision)

131.7 TFLOPS No

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

65.86 TFLOPS 4.096 TFLOPS

FP64 (Double Precision)

2.058 TFLOPS 1.024 TFLOPS

CUDA Cores

6,144 2,048 ×2 (4096)

RT Cores

96 No

Architecture & Compatibility

GPU Architecture

RDNA 3.0 GCN 1.0

SM (Streaming Multiprocessor)

No No

PCIe Version

PCIe 4.0 x16 PCIe 3.0 x16

ML Software Support

CUDA Version

No No

Clocks & Performance

Base Clock

2,119 950

Boost Clock

2,680 1,000

Memory Clock

2,500 1,500

Power Consumption

TDP/TGP

420 W
🔥 -11% 375 W

Recommended PSU

800 W
🔥 -6% 750 W

Power Connector

3x 8-pin 2x 8-pin

Rendering

Texture Units (TMU)

384 128 ×2 (256)

ROP

96 No

L2 Cache

6 MB 768 KB

Additional

Slots

Quad-slot Dual-slot

Release Date

Nov. 3, 2022 June 3, 2013

Display Outputs

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

2x HDMI 2.1a
2x DisplayPort 2.1
1x DVI
4x mini-DisplayPort 1.2

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