AMD Radeon HD 6870 1600SP Edition vs AMD Radeon RX 460

VS

AMD Radeon HD 6870 1600SP Edition

AMD Radeon RX 460

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 2GB VRAM Radeon RX 460 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 1600SP Edition 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 112.0GB/s)

704 additional rendering cores

AMD Radeon RX 460 's Advantages

Released 3 years and 7 months late

Boost Clock1200MHz

More VRAM (2GB vs 1024GB)

Lower TDP (75W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition +26%

2.72 TFLOPS

Radeon RX 460

2.15 TFLOPS

Radeon HD 6870 1600SP Edition

VS

Radeon RX 460

Graphics Card

Jan 2013

Release Date

Aug 2016

Northern Islands

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1090 MHz

-

Boost Clock

1200 MHz

1050 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

112.0GB/s

Render Config

20

Compute Units

14

-

1600

Shading Units

896

80

TMUs

56

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

19.20 GPixel/s

68.00 GTexel/s

Texture Rate

67.20 GTexel/s

-

FP16 (half)

2.150 TFLOPS

2.720 TFLOPS

FP32 (float)

2.150 TFLOPS

544.0 GFLOPS

FP64 (double)

134.4 GFLOPS

Board Design

175W

TDP

75W

450 W

Suggested PSU

250 W

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

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

Cypress

GPU Name

Baffin

Cypress XT (215-0735033)

GPU Variant

Baffin PRO

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

2.154 billion

Transistors

3 billion

334 mm²

Die Size

123 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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