Intel Arc A780 vs AMD Radeon HD 7870 XT

VS

Intel Arc A780

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 16GB VRAM Arc A780 and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

Intel Arc A780 's Advantages

Boost Clock has increased by 126% (2200MHz vs 975MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (559.6GB/s vs 192.0GB/s)

2560 additional rendering cores

AMD Radeon HD 7870 XT 's Advantages

Lower TDP (185W vs 200W)

Score

Benchmark

FP32 (float)

Arc A780 +501%

18.02 TFLOPS

Radeon HD 7870 XT

2.995 TFLOPS

Arc A780

VS

Radeon HD 7870 XT

Graphics Card

Unknown

Release Date

Nov 2012

Alchemist(Arc 7)

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2200 MHz

Base Clock

925 MHz

2200 MHz

Boost Clock

975 MHz

1093 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

256bit

Memory Bus

256bit

559.6GB/s

Bandwidth

192.0GB/s

Render Config

-

Compute Units

24

-

4096

Shading Units

1536

256

TMUs

96

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

31.20 GPixel/s

563.2 GTexel/s

Texture Rate

93.60 GTexel/s

36.04 TFLOPS

FP16 (half)

-

18.02 TFLOPS

FP32 (float)

2.995 TFLOPS

2.253 TFLOPS

FP64 (double)

748.8 GFLOPS

Board Design

200W

TDP

185W

550 W

Suggested PSU

450 W

1x HDMI 2.13x DisplayPort 2.0

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

DG2-512

GPU Name

Tahiti

ACM-G10

GPU Variant

Tahiti LE (215-0821122)

Generation 12.7

Architecture

GCN 1.0

TSMC

Foundry

TSMC

6 nm

Process Size

28 nm

21.7 billion

Transistors

4.313 billion

406 mm²

Die Size

352 mm²

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

-

6.6

Shader Model

5.1

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