AMD Radeon Instinct MI325X vs NVIDIA GeForce GTX 660

VS

AMD Radeon Instinct MI325X

NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 288GB VRAM Radeon Instinct MI325X and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Instinct MI325X 's Advantages

Released 12 years and 1 months late

Boost Clock has increased by 103% (2100MHz vs 1032MHz)

More VRAM (288GB vs 2GB)

Larger VRAM bandwidth (10.3TB/s vs 144.2GB/s)

18496 additional rendering cores

NVIDIA GeForce GTX 660 's Advantages

Lower TDP (140W vs 750W)

Score

Benchmark

FP32 (float)

Radeon Instinct MI325X +4025%

81.72 TFLOPS

GeForce GTX 660

1.981 TFLOPS

Radeon Instinct MI325X

VS

GeForce GTX 660

Graphics Card

Oct 2024

Release Date

Sep 2012

Radeon Instinct(MIx)

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

980 MHz

2100 MHz

Boost Clock

1032 MHz

2525 MHz

Memory Clock

1502 MHz

Memory

288GB

Memory Size

2GB

HBM3e

Memory Type

GDDR5

8192bit

Memory Bus

192bit

10.3TB/s

Bandwidth

144.2GB/s

Render Config

304

Compute Units

-

19456

Shading Units

960

1216

TMUs

80

0

ROPs

24

1216

Tensor Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

16 MB

L2 Cache

384 KB

256 MB

L3 Cache

-

Theoretical Performance

0 MPixel/s

Pixel Rate

20.64 GPixel/s

2554 GTexel/s

Texture Rate

82.56 GTexel/s

653.7 TFLOPS

FP16 (half)

-

81.72 TFLOPS

FP32 (float)

1.981 TFLOPS

81.72 TFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

750W

TDP

140W

1150 W

Suggested PSU

300 W

No outputs

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

Aqua Vanjaram

GPU Name

GK106

-

GPU Variant

GK106-400-A1

CDNA 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

153 billion

Transistors

2.54 billion

1017 mm²

Die Size

221 mm²

Graphics Features

N/A

DirectX

12 (11_0)

N/A

OpenGL

4.6

3.0

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

N/A

Shader Model

5.1

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