AMD Radeon HD 7970 vs Intel Arc A780

VS

AMD Radeon HD 7970

Intel Arc A780

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 16GB VRAM Arc A780 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 3GB)

Larger VRAM bandwidth (559.6GB/s vs 264.0GB/s)

2048 additional rendering cores

Lower TDP (200W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970

3.789 TFLOPS

Arc A780 +375%

18.02 TFLOPS

Radeon HD 7970

VS

Arc A780

Graphics Card

Dec 2011

Release Date

Unknown

Southern Islands

Generation

Alchemist(Arc 7)

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2200 MHz

-

Boost Clock

2200 MHz

1375 MHz

Memory Clock

1093 MHz

Memory

3GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6X

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

559.6GB/s

Render Config

32

Compute Units

-

2048

Shading Units

4096

128

TMUs

256

32

ROPs

128

-

Tensor Cores

512

-

RT Cores

32

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

16 MB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

281.6 GPixel/s

118.4 GTexel/s

Texture Rate

563.2 GTexel/s

-

FP16 (half)

36.04 TFLOPS

3.789 TFLOPS

FP32 (float)

18.02 TFLOPS

947.2 GFLOPS

FP64 (double)

2.253 TFLOPS

Board Design

250W

TDP

200W

600 W

Suggested PSU

550 W

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

Outputs

1x HDMI 2.13x DisplayPort 2.0

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Tahiti

GPU Name

DG2-512

Tahiti XT (215-0821060)

GPU Variant

ACM-G10

GCN 1.0

Architecture

Generation 12.7

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

4.313 billion

Transistors

21.7 billion

352 mm²

Die Size

406 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

5.1

Shader Model

6.6

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