GPU Comparison

A

AMD

RADEON

AMD 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

VS

NVIDIA

GEFORCE

GeForce GT 645M

CORE STATE GK107

VRAM 2 GB

CLOCK SPEED 780 MHz

TDP 32 W

BUS WIDTH 128 bit

ARCHITECTURE Kepler

nm

PROCESS 28 nm

LAUNCH DATE 2012

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

2,238

N/A

geekbench_metal

113,421

N/A

geekbench_opencl

87,621

2,665

geekbench_vulkan

96,572

N/A

passmark_directx_10

101

N/A

passmark_directx_11

127

N/A

passmark_directx_12

65

N/A

passmark_directx_9

147

N/A

passmark_g2d

538

N/A

passmark_g3d

13,261

N/A

passmark_gpu_compute

5,032

N/A

DETAILED SPECIFICATIONS

SPECIFICATION

RX 6800M

GT 645M

Core Specs

Shading Units

2,560

384 -85.0%

Shaders

2,560

384 -85.0%

TMUs

160

32 -80.0%

ROPs

64

16 -75.0%

Compute Units

40

—

Clocks

Base Clock

2116 MHz

709 MHz

Boost Clock

2390 MHz

780 MHz

Game Clock

2300 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

900 MHz 1800 Mbps effective

Memory

Memory Size

12 GB

2 GB

VRAM (MB)

12,288

2,048 -83.3%

Memory Type

GDDR6

DDR3

Memory Bus

192 bit

128 bit

Bandwidth

384.0 GB/s

28.80 GB/s

Cache

L1 Cache

128 KB per Array

16 KB (per SMX)

L2 Cache

3 MB

256 KB

L3 Cache

96 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

153.0 GPixel/s

6.240 GPixel/s

Texture Rate

382.4 GTexel/s

24.96 GTexel/s

FP32 (TFLOPS)

12.24 TFLOPS

599.0 GFLOPS

FP64 (TFLOPS)

764.8 GFLOPS (1:16)

24.96 GFLOPS (1:24)

FP16 (TFLOPS)

24.47 TFLOPS (2:1)

—

AI/RT

RT Cores

40

—

Power

TDP

145 W

32 W

TDP (W)

145

32 -77.9%

Power Connectors

None

None

Architecture

Architecture

RDNA 2.0

Kepler

GPU Name

Navi 22

GK107

Generation

Navi Mobile (RX 6000M)

GeForce 600M

Process Size

7 nm

28 nm

Transistors

17,200 million

1,270 million

Die Size

335 mm²

118 mm²

Foundry

TSMC

TSMC

Density

51.3M / 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

IGP

IGP

Outputs

Portable Device Dependent

Portable Device Dependent

Bus Interface

PCIe 4.0 x16

PCIe 3.0 x16

Other

Production

End-of-life

End-of-life

Predecessor

Polaris Mobile

GeForce 500M

Successor

—

GeForce 700M

View Radeon RX 6800M Details View GeForce GT 645M Details