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 4080 SUPER

CORE STATE AD103

VRAM 16 GB

CLOCK SPEED 2550 MHz

TDP 320 W

BUS WIDTH 256 bit

ARCHITECTURE Ada Lovelace

nm

PROCESS 5 nm

LAUNCH DATE 2024

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

246,994

geekbench_vulkan

14,748

226,163

3dmark_3dmark_steel_nomad_dx12

N/A

6,600

passmark_directx_10

N/A

193

passmark_directx_11

N/A

301

passmark_directx_12

N/A

134

passmark_directx_9

N/A

381

passmark_g2d

N/A

1,270

passmark_g3d

N/A

34,245

passmark_gpu_compute

N/A

19,822

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RTX 4080 SUPER

Core Specs

Shading Units

384

10,240 +2566.7%

Shaders

384

10,240 +2566.7%

TMUs

24

320 +1233.3%

ROPs

16

112 +600.0%

Compute Units

6

—

SM Count

—

80

Clocks

Base Clock

1500 MHz

2295 MHz

Boost Clock

1900 MHz

2550 MHz

Memory Clock

System Shared

1438 MHz 23 Gbps effective

Memory

Memory Size

System Shared

16 GB

VRAM (MB)

—

16,384

Memory Type

System Shared

GDDR6X

Memory Bus

System Shared

256 bit

Bandwidth

System Dependent

736.3 GB/s

Cache

L1 Cache

128 KB per Array

128 KB (per SM)

L2 Cache

2 MB

64 MB

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

30.40 GPixel/s

285.6 GPixel/s

Texture Rate

45.60 GTexel/s

816.0 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

52.22 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

816.0 GFLOPS (1:64)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

52.22 TFLOPS (1:1)

AI/RT

RT Cores

6

80 +1233.3%

Tensor Cores

—

320

Power

TDP

40 W

320 W

TDP (W)

40

320 +700.0%

Suggested PSU

—

700 W

Power Connectors

None

1x 16-pin

Architecture

Architecture

RDNA 2.0

Ada Lovelace

GPU Name

Rembrandt

AD103

Generation

Navi II IGP (Rembrandt Mobile)

GeForce 40

Process Size

6 nm

5 nm

Transistors

13,100 million

45,900 million

Die Size

208 mm²

379 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

121.1M / 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

—

8.9

Shader Model

6.8

6.8

Physical

Slot Width

IGP

Triple-slot

Length

—

310 mm 12.2 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

—

999 USD

Production

End-of-life

End-of-life

Predecessor

Vega II IGP

GeForce 30

Successor

Navi III IGP

GeForce 50

View Radeon 660M Details View GeForce RTX 4080 SUPER Details