GPU Comparison

A

AMD

RADEON

AMD Radeon 660M

CORE STATE Rembrandt

VRAM System Shared

CLOCK SPEED 1900 MHz

TDP 40 W

BUS WIDTH System Shared

ARCHITECTURE RDNA 2.0

nm

PROCESS 6 nm

LAUNCH DATE 2022

VS

NVIDIA

GEFORCE

GeForce RTX 3090

CORE STATE GA102

VRAM 24 GB

CLOCK SPEED 1695 MHz

TDP 350 W

BUS WIDTH 384 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2020

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

191,142

geekbench_vulkan

14,748

174,310

3dmark_3dmark_steel_nomad_dx12

N/A

5,118

passmark_directx_10

N/A

182

passmark_directx_11

N/A

220

passmark_directx_12

N/A

110

passmark_directx_9

N/A

268

passmark_g2d

N/A

1,063

passmark_g3d

N/A

26,645

passmark_gpu_compute

N/A

15,356

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RTX 3090

Core Specs

Shading Units

384

10,496 +2633.3%

Shaders

384

10,496 +2633.3%

TMUs

24

328 +1266.7%

ROPs

16

112 +600.0%

Compute Units

6

—

SM Count

—

82

Clocks

Base Clock

1500 MHz

1395 MHz

Boost Clock

1900 MHz

1695 MHz

Memory Clock

System Shared

1219 MHz 19.5 Gbps effective

Memory

Memory Size

System Shared

24 GB

VRAM (MB)

—

24,576

Memory Type

System Shared

GDDR6X

Memory Bus

System Shared

384 bit

Bandwidth

System Dependent

936.2 GB/s

Cache

L1 Cache

128 KB per Array

128 KB (per SM)

L2 Cache

2 MB

6 MB

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

30.40 GPixel/s

189.8 GPixel/s

Texture Rate

45.60 GTexel/s

556.0 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

35.58 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

556.0 GFLOPS (1:64)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

35.58 TFLOPS (1:1)

AI/RT

RT Cores

6

82 +1266.7%

Tensor Cores

—

328

Power

TDP

40 W

350 W

TDP (W)

40

350 +775.0%

Suggested PSU

—

750 W

Power Connectors

None

1x 12-pin

Architecture

Architecture

RDNA 2.0

Ampere

GPU Name

Rembrandt

GA102

Generation

Navi II IGP (Rembrandt Mobile)

GeForce 30

Process Size

6 nm

8 nm

Transistors

13,100 million

28,300 million

Die Size

208 mm²

628 mm²

Foundry

TSMC

Samsung

Density

63.0M / mm²

45.1M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.4

1.4

OpenCL

2.0

3.0

CUDA

—

8.6

Shader Model

6.8

6.8

Physical

Slot Width

IGP

Triple-slot

Length

—

336 mm 13.2 inches

Height

—

140 mm 5.5 inches

Outputs

Portable Device Dependent

1x HDMI 2.13x DisplayPort 1.4a

Bus Interface

PCIe 4.0 x8

PCIe 4.0 x16

Other

Launch Price

—

1,499 USD

Production

End-of-life

End-of-life

Predecessor

Vega II IGP

GeForce 20

Successor

Navi III IGP

GeForce 40

View Radeon 660M Details View GeForce RTX 3090 Details