GPU Comparison

A

AMD

RADEON

AMD Radeon R9 M295X

CORE STATE Amethyst

VRAM 4 GB

CLOCK SPEED —

TDP 250 W

BUS WIDTH 256 bit

ARCHITECTURE GCN 3.0

nm

PROCESS 28 nm

LAUNCH DATE 2014

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_metal

33,733

175,541

geekbench_opencl

22,719

24,559

geekbench_vulkan

29,171

130,531

3dmark_3dmark_steel_nomad_dx12

N/A

3,188

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

R9 M295X

RX 6800

Core Specs

Shading Units

2,048

3,840 +87.5%

Shaders

2,048

3,840 +87.5%

TMUs

128

240 +87.5%

ROPs

32

96 +200.0%

Compute Units

32

60 +87.5%

Clocks

Base Clock

—

1700 MHz

Boost Clock

—

2105 MHz

GPU Clock

723 MHz

—

Game Clock

—

1815 MHz

Memory Clock

1250 MHz 5 Gbps effective

2000 MHz 16 Gbps effective

Memory

Memory Size

4 GB

16 GB

VRAM (MB)

4,096

16,384 +300.0%

Memory Type

GDDR5

GDDR6

Memory Bus

256 bit

256 bit

Bandwidth

160.0 GB/s

512.0 GB/s

Cache

L1 Cache

16 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

23.14 GPixel/s

202.1 GPixel/s

Texture Rate

92.54 GTexel/s

505.2 GTexel/s

FP32 (TFLOPS)

2.961 TFLOPS

16.17 TFLOPS

FP64 (TFLOPS)

185.1 GFLOPS (1:16)

1,010.4 GFLOPS (1:16)

FP16 (TFLOPS)

2.961 TFLOPS (1:1)

32.33 TFLOPS (2:1)

AI/RT

RT Cores

—

60

Power

TDP

250 W

250 W

TDP (W)

250

250 0.0%

Suggested PSU

—

600 W

Power Connectors

None

2x 8-pin

Architecture

Architecture

GCN 3.0

RDNA 2.0

GPU Name

Amethyst

Navi 21

Generation

Gem System (R9 M200)

Navi II (RX 6000)

Process Size

28 nm

7 nm

Transistors

5,000 million

26,800 million

Die Size

366 mm²

520 mm²

Foundry

TSMC

TSMC

Density

13.7M / mm²

51.5M / mm²

API Support

DirectX

12 (12_0)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.4

OpenCL

2.1

2.1

Shader Model

6.5

6.8

Physical

Slot Width

MXM Module

Dual-slot

Length

—

267 mm 10.5 inches

Height

—

120 mm 4.7 inches

Outputs

Portable Device Dependent

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

Bus Interface

MXM-B (3.0)

PCIe 4.0 x16

Other

Launch Price

—

579 USD

Production

End-of-life

End-of-life

Predecessor

Solar System

Navi

Successor

Polaris Mobile

Navi III

View Radeon R9 M295X Details View Radeon RX 6800 Details