AMD Radeon RX 550 640SP vs AMD Radeon HD 6870 X2

VS

AMD Radeon RX 550 640SP

AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 640SP and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 640SP 's Advantages

Released 6 years and 3 months late

Boost Clock1071MHz

More VRAM (2GB vs 1024GB)

Lower TDP (60W vs 300W)

AMD Radeon HD 6870 X2 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 96.00GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550 640SP

1.371 TFLOPS

Radeon HD 6870 X2 +47%

2.016 TFLOPS

Radeon RX 550 640SP

VS

Radeon HD 6870 X2

Graphics Card

Oct 2017

Release Date

Jul 2011

Polaris

Generation

Northern Islands

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

1050 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

134.4GB/s

Render Config

10

Compute Units

14

-

640

Shading Units

1120

40

TMUs

56

16

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

28.80 GPixel/s

42.84 GTexel/s

Texture Rate

50.40 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

2.016 TFLOPS

85.68 GFLOPS

FP64 (double)

-

Board Design

60W

TDP

300W

250 W

Suggested PSU

700 W

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

Outputs

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

None

Power Connectors

-

Graphics Processor

Baffin

GPU Name

Barts

Baffin LE

GPU Variant

Barts XT (215-0798000)

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

3 billion

Transistors

1.7 billion

123 mm²

Die Size

255 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

6.4

Shader Model

5.0

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