GPU Comparison

A

AMD

RADEON

AMD Radeon R6 M255DX

CORE STATE Jet

VRAM System Shared

CLOCK SPEED 855 MHz

TDP —

BUS WIDTH System Shared

ARCHITECTURE GCN 1.0

nm

PROCESS 28 nm

LAUNCH DATE 2014

VS

A

AMD

RADEON

Radeon RX 580

CORE STATE Polaris 20

VRAM 8 GB

CLOCK SPEED 1340 MHz

TDP 185 W

BUS WIDTH 256 bit

ARCHITECTURE GCN 4.0

nm

PROCESS 14 nm

LAUNCH DATE 2017

PERFORMANCE BENCHMARKS

geekbench_vulkan

4,867

45,173

3dmark_3dmark_steel_nomad_dx12

N/A

1,005

geekbench_metal

N/A

52,176

geekbench_opencl

N/A

37,453

passmark_directx_10

N/A

46

passmark_directx_11

N/A

60

passmark_directx_12

N/A

43

passmark_directx_9

N/A

124

passmark_g2d

N/A

769

passmark_g3d

N/A

8,813

passmark_gpu_compute

N/A

3,488

DETAILED SPECIFICATIONS

SPECIFICATION

R6 M255DX

RX 580

Core Specs

Shading Units

320

2,304 +620.0%

Shaders

320

2,304 +620.0%

TMUs

20

144 +620.0%

ROPs

8

32 +300.0%

Compute Units

5

36 +620.0%

Clocks

Base Clock

780 MHz

1257 MHz

Boost Clock

855 MHz

1340 MHz

Memory Clock

System Shared

2000 MHz 8 Gbps effective

Memory

Memory Size

System Shared

8 GB

VRAM (MB)

—

8,192

Memory Type

System Shared

GDDR5

Memory Bus

System Shared

256 bit

Bandwidth

System Dependent

256.0 GB/s

Cache

L1 Cache

16 KB (per CU)

16 KB (per CU)

L2 Cache

128 KB

2 MB

Performance

Pixel Rate

6.840 GPixel/s

42.88 GPixel/s

Texture Rate

17.10 GTexel/s

193.0 GTexel/s

FP32 (TFLOPS)

547.2 GFLOPS

6.175 TFLOPS

FP64 (TFLOPS)

34.20 GFLOPS (1:16)

385.9 GFLOPS (1:16)

FP16 (TFLOPS)

—

6.175 TFLOPS (1:1)

Power

TDP

—

185 W

TDP (W)

—

185

Suggested PSU

—

450 W

Power Connectors

—

1x 8-pin

Architecture

Architecture

GCN 1.0

GCN 4.0

GPU Name

Jet

Polaris 20

Generation

Gem System Hybrid (Rx M200)

Polaris (RX 500)

Process Size

28 nm

14 nm

Transistors

690 million

5,700 million

Die Size

56 mm²

232 mm²

Foundry

TSMC

GlobalFoundries

Density

12.3M / mm²

24.6M / mm²

API Support

DirectX

12 (11_1)

12 (12_0)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.3

OpenCL

2.1 (1.2)

2.1

Shader Model

6.5 (5.1)

6.7

Physical

Slot Width

IGP

Dual-slot

Length

—

241 mm 9.5 inches

Outputs

Portable Device Dependent

1x HDMI 2.0b3x DisplayPort 1.4a

Bus Interface

IGP

PCIe 3.0 x16

Other

Launch Price

—

229 USD

Production

End-of-life

End-of-life

Predecessor

—

Arctic Islands

Successor

—

Vega

View Radeon R6 M255DX Details View Radeon RX 580 Details