ATI Radeon HD 3870 AGP vs AMD Radeon RX 580X

VS

ATI Radeon HD 3870 AGP

AMD Radeon RX 580X

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

Main Differences

ATI Radeon HD 3870 AGP 's Advantages

Lower TDP (106W vs 185W)

AMD Radeon RX 580X 's Advantages

Boost Clock1340MHz

More VRAM (8GB vs 512GB)

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

1984 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3870 AGP

0.497 TFLOPS

Radeon RX 580X +1142%

6.175 TFLOPS

Radeon HD 3870 AGP

VS

Radeon RX 580X

Graphics Card

Unknown

Release Date

Apr 2018

Radeon R600

Generation

Polaris

Desktop

Type

Desktop

AGP 8x

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1257 MHz

-

Boost Clock

1340 MHz

1126 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

8GB

GDDR4

Memory Type

GDDR5

256bit

Memory Bus

256bit

72.06GB/s

Bandwidth

256.0GB/s

Render Config

4

Compute Units

36

-

320

Shading Units

2304

16

TMUs

144

16

ROPs

32

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

42.88 GPixel/s

12.43 GTexel/s

Texture Rate

193.0 GTexel/s

-

FP16 (half)

6.175 TFLOPS

497.3 GFLOPS

FP32 (float)

6.175 TFLOPS

99.46 GFLOPS

FP64 (double)

385.9 GFLOPS

Board Design

106W

TDP

185W

300 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

RV670

GPU Name

Polaris 20

RV670 XT (215-0708005)

GPU Variant

Polaris 20 XTX (215-0910038)

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

55 nm

Process Size

14 nm

0.666 billion

Transistors

5.7 billion

192 mm²

Die Size

232 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.2

-

4.1

Shader Model

6.4

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