AMD Radeon RX 550X 640SP vs ATI Radeon HD 3870 Mac Edition

VS

AMD Radeon RX 550X 640SP

ATI Radeon HD 3870 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550X 640SP and 512MB VRAM Radeon HD 3870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 640SP 's Advantages

Released 9 years and 10 months late

Boost Clock1071MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (96.00GB/s vs 72.06GB/s)

320 additional rendering cores

Lower TDP (60W vs 106W)

Score

Benchmark

FP32 (float)

Radeon RX 550X 640SP +175%

1.371 TFLOPS

Radeon HD 3870 Mac Edition

0.497 TFLOPS

Radeon RX 550X 640SP

VS

Radeon HD 3870 Mac Edition

Graphics Card

Apr 2018

Release Date

Jun 2008

Polaris

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

1126 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

72.06GB/s

Render Config

10

Compute Units

4

-

640

Shading Units

320

40

TMUs

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

12.43 GPixel/s

42.84 GTexel/s

Texture Rate

12.43 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

497.3 GFLOPS

85.68 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

60W

TDP

106W

250 W

Suggested PSU

300 W

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

Baffin

GPU Name

RV670

Baffin LE

GPU Variant

RV670 XT (215-0708005)

GCN 4.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

3 billion

Transistors

0.666 billion

123 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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