AMD Radeon RX 550X 640SP vs ATI Radeon HD 3870 X2

VS

AMD Radeon RX 550X 640SP

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550X 640SP and 512MB VRAM Radeon HD 3870 X2 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 10 years and 3 months late

Boost Clock1071MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (96.00GB/s vs 57.66GB/s)

320 additional rendering cores

Lower TDP (60W vs 165W)

Score

Benchmark

FP32 (float)

Radeon RX 550X 640SP +159%

1.371 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

Radeon RX 550X 640SP

VS

Radeon HD 3870 X2

Graphics Card

Apr 2018

Release Date

Jan 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

901 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

57.66GB/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

13.20 GPixel/s

42.84 GTexel/s

Texture Rate

13.20 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

528.0 GFLOPS

85.68 GFLOPS

FP64 (double)

105.6 GFLOPS

Board Design

60W

TDP

165W

250 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Baffin

GPU Name

R680

Baffin LE

GPU Variant

R680 XT (215-0708017)

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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