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 6800M

CORE STATE Navi 22

VRAM 12 GB

CLOCK SPEED 2390 MHz

TDP 145 W

BUS WIDTH 192 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_vulkan

4,867

96,572

3dmark_3dmark_steel_nomad_dx12

N/A

2,238

geekbench_metal

N/A

113,421

geekbench_opencl

N/A

87,621

passmark_directx_10

N/A

101

passmark_directx_11

N/A

127

passmark_directx_12

N/A

65

passmark_directx_9

N/A

147

passmark_g2d

N/A

538

passmark_g3d

N/A

13,261

passmark_gpu_compute

N/A

5,032

DETAILED SPECIFICATIONS

SPECIFICATION

R6 M255DX

RX 6800M

Core Specs

Shading Units

320

2,560 +700.0%

Shaders

320

2,560 +700.0%

TMUs

20

160 +700.0%

ROPs

8

64 +700.0%

Compute Units

5

40 +700.0%

Clocks

Base Clock

780 MHz

2116 MHz

Boost Clock

855 MHz

2390 MHz

Game Clock

—

2300 MHz

Memory Clock

System Shared

2000 MHz 16 Gbps effective

Memory

Memory Size

System Shared

12 GB

VRAM (MB)

—

12,288

Memory Type

System Shared

GDDR6

Memory Bus

System Shared

192 bit

Bandwidth

System Dependent

384.0 GB/s

Cache

L1 Cache

16 KB (per CU)

128 KB per Array

L2 Cache

128 KB

3 MB

L3 Cache

—

96 MB

L0 Cache

—

32 KB per WGP

Performance

Pixel Rate

6.840 GPixel/s

153.0 GPixel/s

Texture Rate

17.10 GTexel/s

382.4 GTexel/s

FP32 (TFLOPS)

547.2 GFLOPS

12.24 TFLOPS

FP64 (TFLOPS)

34.20 GFLOPS (1:16)

764.8 GFLOPS (1:16)

FP16 (TFLOPS)

—

24.47 TFLOPS (2:1)

AI/RT

RT Cores

—

40

Power

TDP

—

145 W

TDP (W)

—

145

Power Connectors

—

None

Architecture

Architecture

GCN 1.0

RDNA 2.0

GPU Name

Jet

Navi 22

Generation

Gem System Hybrid (Rx M200)

Navi Mobile (RX 6000M)

Process Size

28 nm

7 nm

Transistors

690 million

17,200 million

Die Size

56 mm²

335 mm²

Foundry

TSMC

TSMC

Density

12.3M / mm²

51.3M / mm²

API Support

DirectX

12 (11_1)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.4

OpenCL

2.1 (1.2)

2.1

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

IGP

IGP

Outputs

Portable Device Dependent

Portable Device Dependent

Bus Interface

IGP

PCIe 4.0 x16

Other

Production

End-of-life

End-of-life

Predecessor

—

Polaris Mobile

View Radeon R6 M255DX Details View Radeon RX 6800M Details