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 6800

CORE STATE Navi 21

VRAM 16 GB

CLOCK SPEED 2105 MHz

TDP 250 W

BUS WIDTH 256 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2020

PERFORMANCE BENCHMARKS

geekbench_opencl

3,977

24,559

3dmark_3dmark_steel_nomad_dx12

N/A

3,188

geekbench_metal

N/A

175,541

geekbench_vulkan

N/A

130,531

passmark_directx_10

N/A

128

passmark_directx_11

N/A

214

passmark_directx_12

N/A

89

passmark_directx_9

N/A

257

passmark_g2d

N/A

990

passmark_g3d

N/A

22,067

passmark_gpu_compute

N/A

10,864

DETAILED SPECIFICATIONS

SPECIFICATION

HD 6850 X2

RX 6800

Core Specs

Shading Units

960

3,840 +300.0%

Shaders

960

3,840 +300.0%

TMUs

48

240 +400.0%

ROPs

32

96 +200.0%

Compute Units

12

60 +400.0%

Clocks

Base Clock

—

1700 MHz

Boost Clock

—

2105 MHz

GPU Clock

800 MHz

—

Game Clock

—

1815 MHz

Memory Clock

1050 MHz 4.2 Gbps effective

2000 MHz 16 Gbps effective

Memory

Memory Size

2 GB

16 GB

VRAM (MB)

2,048

16,384 +700.0%

Memory Type

GDDR5

GDDR6

Memory Bus

256 bit

256 bit

Bandwidth

134.4 GB/s

512.0 GB/s

Cache

L1 Cache

8 KB (per CU)

128 KB per Array

L2 Cache

512 KB

4 MB

L3 Cache

—

128 MB

L0 Cache

—

32 KB per WGP

Performance

Pixel Rate

25.60 GPixel/s

202.1 GPixel/s

Texture Rate

38.40 GTexel/s

505.2 GTexel/s

FP32 (TFLOPS)

1.536 TFLOPS

16.17 TFLOPS

FP64 (TFLOPS)

—

1,010.4 GFLOPS (1:16)

FP16 (TFLOPS)

—

32.33 TFLOPS (2:1)

AI/RT

RT Cores

—

60

Power

TDP

254 W

250 W

TDP (W)

254

250 -1.6%

Suggested PSU

600 W

600 W

Power Connectors

2x 8-pin

2x 8-pin

Architecture

Architecture

TeraScale 2

RDNA 2.0

GPU Name

Barts

Navi 21

Generation

Northern Islands (HD 6800)

Navi II (RX 6000)

Process Size

40 nm

7 nm

Transistors

1,700 million

26,800 million

Die Size

255 mm²

520 mm²

Foundry

TSMC

TSMC

Density

6.7M / mm²

51.5M / mm²

API Support

DirectX

11.2 (11_0)

12 Ultimate (12_2)

OpenGL

4.4

4.6

Vulkan

—

1.4

OpenCL

1.2

2.1

Shader Model

5.0

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

—

267 mm 10.5 inches

Height

—

120 mm 4.7 inches

Outputs

2x DVI1x HDMI 1.3a1x DisplayPort 1.1

1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C

Bus Interface

PCIe 2.0 x16

PCIe 4.0 x16

Other

Launch Price

—

579 USD

Production

End-of-life

End-of-life

Predecessor

Evergreen

Navi

Successor

Southern Islands

Navi III

View Radeon HD 6850 X2 Details View Radeon RX 6800 Details