AMD Radeon RX 580 vs ATI Radeon HD 3870 AGP

VS

AMD Radeon RX 580

ATI Radeon HD 3870 AGP

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580 and 512MB VRAM Radeon HD 3870 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 's Advantages

Boost Clock1340MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (256.0GB/s vs 72.06GB/s)

1984 additional rendering cores

ATI Radeon HD 3870 AGP 's Advantages

Lower TDP (106W vs 185W)

Score

Benchmark

FP32 (float)

Radeon RX 580 +1142%

6.175 TFLOPS

Radeon HD 3870 AGP

0.497 TFLOPS

Radeon RX 580

VS

Radeon HD 3870 AGP

Graphics Card

Apr 2017

Release Date

Unknown

Polaris

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

1257 MHz

Base Clock

-

1340 MHz

Boost Clock

-

2000 MHz

Memory Clock

1126 MHz

Memory

8GB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

256bit

Memory Bus

256bit

256.0GB/s

Bandwidth

72.06GB/s

Render Config

36

Compute Units

4

-

2304

Shading Units

320

144

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

2 MB

L2 Cache

256 KB

-

Theoretical Performance

42.88 GPixel/s

Pixel Rate

12.43 GPixel/s

193.0 GTexel/s

Texture Rate

12.43 GTexel/s

6.175 TFLOPS

FP16 (half)

-

6.175 TFLOPS

FP32 (float)

497.3 GFLOPS

385.9 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

185W

TDP

106W

450 W

Suggested PSU

300 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Polaris 20

GPU Name

RV670

Polaris 20 XTX (215-0910038)

GPU Variant

RV670 XT (215-0708005)

GCN 4.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

5.7 billion

Transistors

0.666 billion

232 mm²

Die Size

192 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.1

OpenCL

N/A

1.2

Vulkan

N/A

-

6.4

Shader Model

4.1

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