AMD Radeon RX 7990 XTX vs AMD Radeon Instinct MI325X

VS

AMD Radeon RX 7990 XTX

AMD Radeon Instinct MI325X

We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7990 XTX and 288GB VRAM Radeon Instinct MI325X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock has increased by 71% (3599MHz vs 2100MHz)

Lower TDP (405W vs 750W)

AMD Radeon Instinct MI325X 's Advantages

More VRAM (288GB vs 24GB)

Larger VRAM bandwidth (10.3TB/s vs 1152GB/s)

13312 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7990 XTX +8%

88.45 TFLOPS

Radeon Instinct MI325X

81.72 TFLOPS

Radeon RX 7990 XTX

VS

Radeon Instinct MI325X

Graphics Card

Unknown

Release Date

Oct 2024

Navi III

Generation

Radeon Instinct(MIx)

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

2500 MHz

Base Clock

1000 MHz

3599 MHz

Boost Clock

2100 MHz

3000 MHz

Memory Clock

2525 MHz

Memory

24GB

Memory Size

288GB

GDDR6

Memory Type

HBM3e

384bit

Memory Bus

8192bit

1152GB/s

Bandwidth

10.3TB/s

Render Config

96

Compute Units

304

-

6144

Shading Units

19456

384

TMUs

1216

192

ROPs

0

-

Tensor Cores

1216

96

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

16 MB

192 MB

L3 Cache

256 MB

Theoretical Performance

691.0 GPixel/s

Pixel Rate

0 MPixel/s

1382 GTexel/s

Texture Rate

2554 GTexel/s

176.9 TFLOPS

FP16 (half)

653.7 TFLOPS

88.45 TFLOPS

FP32 (float)

81.72 TFLOPS

2.764 TFLOPS

FP64 (double)

81.72 TFLOPS

Board Design

405W

TDP

750W

800 W

Suggested PSU

1150 W

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

Outputs

No outputs

3x 8-pin

Power Connectors

None

Graphics Processor

Navi 31

GPU Name

Aqua Vanjaram

Navi 31 XTX+

GPU Variant

-

RDNA 3.0

Architecture

CDNA 3.0

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

57.7 billion

Transistors

153 billion

529 mm²

Die Size

1017 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

N/A

4.6

OpenGL

N/A

2.2

OpenCL

3.0

1.3

Vulkan

N/A

-

6.7

Shader Model

N/A

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