GPU Comparison

NVIDIA

GEFORCE

NVIDIA GeForce GTX 660

CORE STATE GK106

VRAM 2 GB

CLOCK SPEED 1032 MHz

TDP 140 W

BUS WIDTH 192 bit

ARCHITECTURE Kepler

nm

PROCESS 28 nm

LAUNCH DATE 2012

VS

NVIDIA

GEFORCE

RTX A2000

CORE STATE GA106

VRAM 6 GB

CLOCK SPEED 1200 MHz

TDP 70 W

BUS WIDTH 192 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_metal

4,284

N/A

geekbench_opencl

11,347

73,310

geekbench_vulkan

11,368

69,089

3dmark_3dmark_steel_nomad_dx12

N/A

1,345

DETAILED SPECIFICATIONS

SPECIFICATION

GTX 660

RTX A2000

Core Specs

Shading Units

960

3,328 +246.7%

Shaders

960

3,328 +246.7%

TMUs

80

104 +30.0%

ROPs

24

48 +100.0%

SM Count

—

26

Clocks

Base Clock

980 MHz

562 MHz

Boost Clock

1032 MHz

1200 MHz

Memory Clock

1502 MHz 6 Gbps effective

1500 MHz 12 Gbps effective

Memory

Memory Size

2 GB

6 GB

VRAM (MB)

2,048

6,144 +200.0%

Memory Type

GDDR5

GDDR6

Memory Bus

192 bit

192 bit

Bandwidth

144.2 GB/s

288.0 GB/s

Cache

L1 Cache

16 KB (per SMX)

128 KB (per SM)

L2 Cache

384 KB

3 MB

Performance

Pixel Rate

20.64 GPixel/s

57.60 GPixel/s

Texture Rate

82.56 GTexel/s

124.8 GTexel/s

FP32 (TFLOPS)

1.981 TFLOPS

7.987 TFLOPS

FP64 (TFLOPS)

82.56 GFLOPS (1:24)

124.8 GFLOPS (1:64)

FP16 (TFLOPS)

—

7.987 TFLOPS (1:1)

AI/RT

RT Cores

—

26

Tensor Cores

—

104

Power

TDP

140 W

70 W

TDP (W)

140

70 -50.0%

Suggested PSU

300 W

250 W

Power Connectors

1x 6-pin

None

Architecture

Architecture

Kepler

Ampere

GPU Name

GK106

GA106

Generation

GeForce 600

Workstation Ampere (Ax000)

Process Size

28 nm

8 nm

Transistors

2,540 million

12,000 million

Die Size

221 mm²

276 mm²

Foundry

TSMC

Samsung

Density

11.5M / mm²

43.5M / mm²

API Support

DirectX

12 (11_0)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.2.175

1.4

OpenCL

3.0

3.0

CUDA

3.0

8.6

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

241 mm 9.5 inches

167 mm 6.6 inches

Height

—

69 mm 2.7 inches

Outputs

2x DVI1x HDMI 1.4a1x DisplayPort 1.2

4x mini-DisplayPort 1.4a

Bus Interface

PCIe 3.0 x16

PCIe 4.0 x16

Other

Launch Price

229 USD

449 USD

Production

End-of-life

End-of-life

Predecessor

GeForce 500

Quadro Turing

Successor

GeForce 700

Workstation Ada

View GeForce GTX 660 Details View RTX A2000 Details