Intel Arc A780 vs AMD Radeon HD 8870 OEM

VS

We compared two Desktop platform GPUs: 16GB VRAM Arc A780 and 2GB VRAM Radeon HD 8870 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

Intel Arc A780 's Advantages

Boost Clock2200MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (559.6GB/s vs 153.6GB/s)

2816 additional rendering cores

AMD Radeon HD 8870 OEM 's Advantages

Lower TDP (175W vs 200W)

Score

Benchmark

FP32 (float)

Arc A780 +603%

18.02 TFLOPS

Radeon HD 8870 OEM

2.56 TFLOPS

Arc A780

VS

Radeon HD 8870 OEM

Graphics Card

Unknown

Release Date

Jan 2013

Alchemist

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2200 MHz

Base Clock

-

2200 MHz

Boost Clock

-

1093 MHz

Memory Clock

1200 MHz

Memory

16GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

256bit

Memory Bus

256bit

559.6GB/s

Bandwidth

153.6GB/s

Render Config

-

SM Count

-

Compute Units

20

4096

Shading Units

1280

256

TMUs

80

128

ROPs

32

512

Tensor Cores

-

32

RT Cores

-

L1 Cache

16 KB (per CU)

16 MB

L2 Cache

512 KB

Theoretical Performance

281.6 GPixel/s

Pixel Rate

32.00 GPixel/s

563.2 GTexel/s

Texture Rate

80.00 GTexel/s

36.04 TFLOPS

FP16 (half)

-

18.02 TFLOPS

FP32 (float)

2.560 TFLOPS

-

FP64 (double)

160.0 GFLOPS

Graphics Processor

DG2-512

GPU Name

Pitcairn

ACM-G10

GPU Variant

Pitcairn XT (215-0828047)

Generation 12.7

Architecture

GCN 1.0

TSMC

Foundry

TSMC

6 nm

Process Size

28 nm

21.7 billion

Transistors

2.8 billion

406 mm²

Die Size

212 mm²

Board Design

200W

TDP

175W

550 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 2.0

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

-

CUDA

-

6.6

Shader Model

5.1

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