GPU Comparison

A

AMD

RADEON

AMD Radeon HD 6850 X2

CORE STATE Barts

VRAM 2 GB

CLOCK SPEED —

TDP 254 W

BUS WIDTH 256 bit

ARCHITECTURE TeraScale 2

nm

PROCESS 40 nm

LAUNCH DATE 2011

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_opencl

3,977

37,453

3dmark_3dmark_steel_nomad_dx12

N/A

1,005

geekbench_metal

N/A

52,176

geekbench_vulkan

N/A

45,173

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

HD 6850 X2

RX 580

Core Specs

Shading Units

960

2,304 +140.0%

Shaders

960

2,304 +140.0%

TMUs

48

144 +200.0%

ROPs

32

32 0.0%

Compute Units

12

36 +200.0%

Clocks

Base Clock

—

1257 MHz

Boost Clock

—

1340 MHz

GPU Clock

800 MHz

—

Memory Clock

1050 MHz 4.2 Gbps effective

2000 MHz 8 Gbps effective

Memory

Memory Size

2 GB

8 GB

VRAM (MB)

2,048

8,192 +300.0%

Memory Type

GDDR5

GDDR5

Memory Bus

256 bit

256 bit

Bandwidth

134.4 GB/s

256.0 GB/s

Cache

L1 Cache

8 KB (per CU)

16 KB (per CU)

L2 Cache

512 KB

2 MB

Performance

Pixel Rate

25.60 GPixel/s

42.88 GPixel/s

Texture Rate

38.40 GTexel/s

193.0 GTexel/s

FP32 (TFLOPS)

1.536 TFLOPS

6.175 TFLOPS

FP64 (TFLOPS)

—

385.9 GFLOPS (1:16)

FP16 (TFLOPS)

—

6.175 TFLOPS (1:1)

Power

TDP

254 W

185 W

TDP (W)

254

185 -27.2%

Suggested PSU

600 W

450 W

Power Connectors

2x 8-pin

1x 8-pin

Architecture

Architecture

TeraScale 2

GCN 4.0

GPU Name

Barts

Polaris 20

Generation

Northern Islands (HD 6800)

Polaris (RX 500)

Process Size

40 nm

14 nm

Transistors

1,700 million

5,700 million

Die Size

255 mm²

232 mm²

Foundry

TSMC

GlobalFoundries

Density

6.7M / mm²

24.6M / mm²

API Support

DirectX

11.2 (11_0)

12 (12_0)

OpenGL

4.4

4.6

Vulkan

—

1.3

OpenCL

1.2

2.1

Shader Model

5.0

6.7

Physical

Slot Width

Dual-slot

Dual-slot

Length

—

241 mm 9.5 inches

Outputs

2x DVI1x HDMI 1.3a1x DisplayPort 1.1

1x HDMI 2.0b3x DisplayPort 1.4a

Bus Interface

PCIe 2.0 x16

PCIe 3.0 x16

Other

Launch Price

—

229 USD

Production

End-of-life

End-of-life

Predecessor

Evergreen

Arctic Islands

Successor

Southern Islands

Vega

View Radeon HD 6850 X2 Details View Radeon RX 580 Details