AMD Radeon Instinct MI325X vs AMD Radeon HD 6870

VS

AMD Radeon Instinct MI325X

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 288GB VRAM Radeon Instinct MI325X and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Instinct MI325X 's Advantages

Released 14 years late

Boost Clock2100MHz

More VRAM (288GB vs 1024GB)

Larger VRAM bandwidth (10.3TB/s vs 134.4GB/s)

18336 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 750W)

Score

Benchmark

FP32 (float)

Radeon Instinct MI325X +3953%

81.72 TFLOPS

Radeon HD 6870

2.016 TFLOPS

Radeon Instinct MI325X

VS

Radeon HD 6870

Graphics Card

Oct 2024

Release Date

Oct 2010

Radeon Instinct(MIx)

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

2100 MHz

Boost Clock

-

2525 MHz

Memory Clock

1050 MHz

Memory

288GB

Memory Size

1024MB

HBM3e

Memory Type

GDDR5

8192bit

Memory Bus

256bit

10.3TB/s

Bandwidth

134.4GB/s

Render Config

304

Compute Units

14

-

19456

Shading Units

1120

1216

TMUs

56

0

ROPs

32

1216

Tensor Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

16 MB

L2 Cache

512 KB

256 MB

L3 Cache

-

Theoretical Performance

0 MPixel/s

Pixel Rate

28.80 GPixel/s

2554 GTexel/s

Texture Rate

50.40 GTexel/s

653.7 TFLOPS

FP16 (half)

-

81.72 TFLOPS

FP32 (float)

2.016 TFLOPS

81.72 TFLOPS

FP64 (double)

-

Board Design

750W

TDP

151W

1150 W

Suggested PSU

450 W

No outputs

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

None

Power Connectors

2x 6-pin

Graphics Processor

Aqua Vanjaram

GPU Name

Barts

-

GPU Variant

Barts XT (215-0798000)

CDNA 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

153 billion

Transistors

1.7 billion

1017 mm²

Die Size

255 mm²

Graphics Features

N/A

DirectX

11.2 (11_0)

N/A

OpenGL

4.4

3.0

OpenCL

1.2

N/A

Vulkan

N/A

-

N/A

Shader Model

5.0

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