GPU Comparison

NVIDIA

GEFORCE

NVIDIA Quadro K620

CORE STATE GM107

VRAM 2 GB

CLOCK SPEED 1124 MHz

TDP 45 W

BUS WIDTH 128 bit

ARCHITECTURE Maxwell

nm

PROCESS 28 nm

LAUNCH DATE 2014

VS

NVIDIA

GEFORCE

RTX A4000

CORE STATE GA104

VRAM 16 GB

CLOCK SPEED 1560 MHz

TDP 140 W

BUS WIDTH 256 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_opencl

6,693

121,988

geekbench_vulkan

5,879

111,712

3dmark_3dmark_steel_nomad_dx12

N/A

2,604

passmark_directx_10

N/A

126

passmark_directx_11

N/A

158

passmark_directx_12

N/A

72

passmark_directx_9

N/A

240

passmark_g2d

N/A

1,024

passmark_g3d

N/A

19,459

passmark_gpu_compute

N/A

9,760

DETAILED SPECIFICATIONS

SPECIFICATION

Quadro K620

RTX A4000

Core Specs

Shading Units

384

6,144 +1500.0%

Shaders

384

6,144 +1500.0%

TMUs

24

192 +700.0%

ROPs

16

96 +500.0%

SM Count

—

48

Clocks

Base Clock

1058 MHz

735 MHz

Boost Clock

1124 MHz

1560 MHz

Memory Clock

900 MHz 1800 Mbps effective

1750 MHz 14 Gbps effective

Memory

Memory Size

2 GB

16 GB

VRAM (MB)

2,048

16,384 +700.0%

Memory Type

DDR3

GDDR6

Memory Bus

128 bit

256 bit

Bandwidth

28.80 GB/s

448.0 GB/s

Cache

L1 Cache

64 KB (per SMM)

128 KB (per SM)

L2 Cache

2 MB

4 MB

Performance

Pixel Rate

17.98 GPixel/s

149.8 GPixel/s

Texture Rate

26.98 GTexel/s

299.5 GTexel/s

FP32 (TFLOPS)

863.2 GFLOPS

19.17 TFLOPS

FP64 (TFLOPS)

26.98 GFLOPS (1:32)

299.5 GFLOPS (1:64)

FP16 (TFLOPS)

—

19.17 TFLOPS (1:1)

AI/RT

RT Cores

—

48

Tensor Cores

—

192

Power

TDP

45 W

140 W

TDP (W)

45

140 +211.1%

Suggested PSU

200 W

300 W

Power Connectors

None

1x 6-pin

Architecture

Architecture

Maxwell

Ampere

GPU Name

GM107

GA104

Generation

Quadro Kepler (Kx200)

Workstation Ampere (Ax000)

Process Size

28 nm

8 nm

Transistors

1,870 million

17,400 million

Die Size

148 mm²

392 mm²

Foundry

TSMC

Samsung

Density

12.6M / mm²

44.4M / mm²

API Support

DirectX

12 (11_0)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.4

1.4

OpenCL

3.0

3.0

CUDA

5.0

8.6

Shader Model

6.7 (5.1)

6.8

Physical

Slot Width

Single-slot

Single-slot

Length

160 mm 6.3 inches

241 mm 9.5 inches

Height

69 mm 2.7 inches

112 mm 4.4 inches

Outputs

1x DVI1x DisplayPort 1.2

4x DisplayPort 1.4a

Bus Interface

PCIe 2.0 x16

PCIe 4.0 x16

Other

Production

End-of-life

End-of-life

Predecessor

Quadro Fermi

Quadro Turing

Successor

Quadro Maxwell

Workstation Ada

View Quadro K620 Details View RTX A4000 Details