Intel Arc A770 vs AMD Radeon HD 6870

VS

Intel Arc A770

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 16GB VRAM Arc A770 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

Intel Arc A770 's Advantages

Released 12 years late

Boost Clock2400MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (512.0GB/s vs 134.4GB/s)

2976 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 225W)

Score

Benchmark

FP32 (float)

Arc A770 +875%

19.66 TFLOPS

Radeon HD 6870

2.016 TFLOPS

Arc A770

VS

Radeon HD 6870

Graphics Card

Oct 2022

Release Date

Oct 2010

Alchemist(Arc 7)

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2100 MHz

Base Clock

-

2400 MHz

Boost Clock

-

2000 MHz

Memory Clock

1050 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

14

-

4096

Shading Units

1120

256

TMUs

56

128

ROPs

32

512

Tensor Cores

-

32

RT Cores

-

L1 Cache

8 KB (per CU)

16 MB

L2 Cache

512 KB

-

Theoretical Performance

307.2 GPixel/s

Pixel Rate

28.80 GPixel/s

614.4 GTexel/s

Texture Rate

50.40 GTexel/s

39.32 TFLOPS

FP16 (half)

-

19.66 TFLOPS

FP32 (float)

2.016 TFLOPS

2.458 TFLOPS

FP64 (double)

-

Board Design

225W

TDP

151W

550 W

Suggested PSU

450 W

1x HDMI 2.13x DisplayPort 2.0

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

DG2-512

GPU Name

Barts

ACM-G10

GPU Variant

Barts XT (215-0798000)

Generation 12.7

Architecture

TeraScale 2

TSMC

Foundry

TSMC

6 nm

Process Size

40 nm

21.7 billion

Transistors

1.7 billion

406 mm²

Die Size

255 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

-

6.6

Shader Model

5.0

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