GPU Comparison

A

AMD

RADEON

AMD 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

VS

NVIDIA

GEFORCE

Quadro K420

CORE STATE GK107

VRAM 1024 MB

CLOCK SPEED —

TDP 41 W

BUS WIDTH 128 bit

ARCHITECTURE Kepler

nm

PROCESS 28 nm

LAUNCH DATE 2014

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

3,188

N/A

geekbench_metal

175,541

N/A

geekbench_opencl

24,559

1,840

geekbench_vulkan

130,531

1,851

passmark_directx_10

128

N/A

passmark_directx_11

214

N/A

passmark_directx_12

89

N/A

passmark_directx_9

257

N/A

passmark_g2d

990

N/A

passmark_g3d

22,067

N/A

passmark_gpu_compute

10,864

N/A

DETAILED SPECIFICATIONS

SPECIFICATION

RX 6800

Quadro K420

Core Specs

Shading Units

3,840

192 -95.0%

Shaders

3,840

192 -95.0%

TMUs

240

16 -93.3%

ROPs

96

16 -83.3%

Compute Units

60

—

Clocks

Base Clock

1700 MHz

—

Boost Clock

2105 MHz

—

GPU Clock

—

876 MHz

Game Clock

1815 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

891 MHz 1782 Mbps effective

Memory

Memory Size

16 GB

1024 MB

VRAM (MB)

16,384

1,024 -93.8%

Memory Type

GDDR6

DDR3

Memory Bus

256 bit

128 bit

Bandwidth

512.0 GB/s

28.51 GB/s

Cache

L1 Cache

128 KB per Array

16 KB (per SMX)

L2 Cache

4 MB

256 KB

L3 Cache

128 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

202.1 GPixel/s

3.504 GPixel/s

Texture Rate

505.2 GTexel/s

14.02 GTexel/s

FP32 (TFLOPS)

16.17 TFLOPS

336.4 GFLOPS

FP64 (TFLOPS)

1,010.4 GFLOPS (1:16)

14.02 GFLOPS (1:24)

FP16 (TFLOPS)

32.33 TFLOPS (2:1)

—

AI/RT

RT Cores

60

—

Power

TDP

250 W

41 W

TDP (W)

250

41 -83.6%

Suggested PSU

600 W

200 W

Power Connectors

2x 8-pin

None

Architecture

Architecture

RDNA 2.0

Kepler

GPU Name

Navi 21

GK107

Generation

Navi II (RX 6000)

Quadro Kepler (Kx200)

Process Size

7 nm

28 nm

Transistors

26,800 million

1,270 million

Die Size

520 mm²

118 mm²

Foundry

TSMC

TSMC

Density

51.5M / mm²

10.8M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 (11_0)

OpenGL

4.6

4.6

Vulkan

1.4

1.2.175

OpenCL

2.1

3.0

CUDA

—

3.0

Shader Model

6.8

6.5 (5.1)

Physical

Slot Width

Dual-slot

Single-slot

Length

267 mm 10.5 inches

160 mm 6.3 inches

Height

120 mm 4.7 inches

69 mm 2.7 inches

Outputs

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

1x DVI1x DisplayPort 1.2

Bus Interface

PCIe 4.0 x16

PCIe 2.0 x16

Other

Launch Price

579 USD

—

Production

End-of-life

End-of-life

Predecessor

Navi

Quadro Fermi

Successor

Navi III

Quadro Maxwell

View Radeon RX 6800 Details View Quadro K420 Details