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

NVIDIA

GEFORCE

GeForce GTX 1080

CORE STATE GP104

VRAM 8 GB

CLOCK SPEED 1733 MHz

TDP 180 W

BUS WIDTH 256 bit

ARCHITECTURE Pascal

nm

PROCESS 16 nm

LAUNCH DATE 2016

PERFORMANCE BENCHMARKS

geekbench_opencl

3,977

55,724

3dmark_3dmark_steel_nomad_dx12

N/A

1,560

geekbench_metal

N/A

23,824

geekbench_vulkan

N/A

65,164

passmark_directx_10

N/A

93

passmark_directx_11

N/A

124

passmark_directx_12

N/A

55

passmark_directx_9

N/A

211

passmark_g2d

N/A

888

passmark_g3d

N/A

15,586

passmark_gpu_compute

N/A

7,614

DETAILED SPECIFICATIONS

SPECIFICATION

HD 6850 X2

GTX 1080

Core Specs

Shading Units

960

2,560 +166.7%

Shaders

960

2,560 +166.7%

TMUs

48

160 +233.3%

ROPs

32

64 +100.0%

Compute Units

12

—

SM Count

—

20

Clocks

Base Clock

—

1607 MHz

Boost Clock

—

1733 MHz

GPU Clock

800 MHz

—

Memory Clock

1050 MHz 4.2 Gbps effective

1251 MHz 10 Gbps effective

Memory

Memory Size

2 GB

8 GB

VRAM (MB)

2,048

8,192 +300.0%

Memory Type

GDDR5

GDDR5X

Memory Bus

256 bit

256 bit

Bandwidth

134.4 GB/s

320.3 GB/s

Cache

L1 Cache

8 KB (per CU)

48 KB (per SM)

L2 Cache

512 KB

2 MB

Performance

Pixel Rate

25.60 GPixel/s

110.9 GPixel/s

Texture Rate

38.40 GTexel/s

277.3 GTexel/s

FP32 (TFLOPS)

1.536 TFLOPS

8.873 TFLOPS

FP64 (TFLOPS)

—

277.3 GFLOPS (1:32)

FP16 (TFLOPS)

—

138.6 GFLOPS (1:64)

Power

TDP

254 W

180 W

TDP (W)

254

180 -29.1%

Suggested PSU

600 W

450 W

Power Connectors

2x 8-pin

1x 8-pin

Architecture

Architecture

TeraScale 2

Pascal

GPU Name

Barts

GP104

Generation

Northern Islands (HD 6800)

GeForce 10

Process Size

40 nm

16 nm

Transistors

1,700 million

7,200 million

Die Size

255 mm²

314 mm²

Foundry

TSMC

TSMC

Density

6.7M / mm²

22.9M / mm²

API Support

DirectX

11.2 (11_0)

12 (12_1)

OpenGL

4.4

4.6

Vulkan

—

1.4

OpenCL

1.2

3.0

CUDA

—

6.1

Shader Model

5.0

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

—

267 mm 10.5 inches

Height

—

112 mm 4.4 inches

Outputs

2x DVI1x HDMI 1.3a1x DisplayPort 1.1

1x DVI1x HDMI 2.03x DisplayPort 1.4a

Bus Interface

PCIe 2.0 x16

PCIe 3.0 x16

Other

Launch Price

—

599 USD

Production

End-of-life

End-of-life

Predecessor

Evergreen

GeForce 900

Successor

Southern Islands

GeForce 20

View Radeon HD 6850 X2 Details View GeForce GTX 1080 Details