NVIDIA Quadro K620 vs NVIDIA RTX PRO 4000 Blackwell SFF Full Specs

Summary

384 Shaders 1GHz	8,960 Shaders 1.34GHz
2GB DDR328.8GB/s	24GB GDDR7432GB/s
Peak·FP32·FP16 768 GFLOPS	Peak·FP32·FP16 23.96 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 45W	TDP 70W

Highlights

Peak OPS

Peak OPS FP32 FP16 Tensor FP4 FP4 Tensor Sparse Tensor FP8-16 FP8-16 Tensor Sparse Tensor FP8-32 FP8-32 Tensor Sparse Tensor FP16-16 FP16-16 Tensor Sparse Tensor FP16-32 FP16-32 Tensor Sparse FP64 BF16 Tensor BF16 BF16 Tensor Sparse Tensor TF32 Tensor INT8 Memory Bandwidth TDP

Quadro K620768 GFLOPSFP32

x1

RTX PRO 4000 Blackwell SFF766.7 TFLOPSFP4 Tensor Sparse

x998.29

Show Top Score

Theoretical Performance

Clock Speed1000MHz UC·Boost·OC	Clock Speed1337MHz UC·Base·Boost·OC
Peak OPS 768 GFLOPSFP32	Peak OPS 766.7 TFLOPSFP4 Tensor Sparse
-	Tensor FP4 383.3 TFLOPS FP4 Tensor Sparse 766.7 TFLOPS
-	Tensor FP8-16 191.7 TFLOPS FP8-16 Tensor Sparse 383.3 TFLOPS Tensor FP8-32 95.84 TFLOPS FP8-32 Tensor Sparse 191.7 TFLOPS
-	Tensor FP16-16 95.84 TFLOPS FP16-16 Tensor Sparse 191.7 TFLOPS Tensor FP16-32 47.92 TFLOPS FP16-32 Tensor Sparse 95.84 TFLOPS
-	BF16 23.96 TFLOPS Tensor BF16 47.92 TFLOPS BF16 Tensor Sparse 95.84 TFLOPS
Tensor TF32 -	Tensor TF32 23.96 TFLOPS
FP32 768 GFLOPS	FP32 23.96 TFLOPS
FP64 24 GFLOPS	FP64 374.4 GFLOPS
-	Tensor INT8 191.7 TOPS
Ray -	Ray 72.66 TOPS
Pixel Rate 16 GPixel/s	Pixel Rate 128.4 GPixel/s
Texture Rate 24 GTexel/s	Texture Rate 374.4 GTexel/s

Core Config

Shaders 384 Shaders	Shaders 8,960 Shaders
TMUs 24 TMUs	TMUs 280 TMUs
ROPs 16 ROPs	ROPs 96 ROPs
Tensor Cores -	Tensor Cores 280 T-Cores
RT Cores -	RT Cores 70 RT-Cores
SMs 3 SMs	SMs 70 SMs

Clocks

Base Clock -	Base Clock 790MHz
Boost Clock 1GHz	Boost Clock 1.34GHz

Cache

L2 Cache 2MB shared

L2 Cache 49.1MB shared

Memory

2GB DDR3	24GB GDDR7
Memory Bus 128-bit	Memory Bus 192-bit
Memory Speed 1.8GT/s	Memory Speed 18GT/s
Memory Bandwidth 28.8GB/s	Memory Bandwidth 432GB/s
ECC No	ECC Yes

Power & Thermals

TDP 45W

TDP 70W

Video Output

Multi-Monitor 2	Multi-Monitor 4
HDCP -	HDCP HDCP 2.3

Ports

-	4x DisplayPort 2.1
1x DisplayPort 1.2	-
1x DVI-I Dual-Link	-

Encoder

Encoder Model NVENC 2

Encoder Model 2x NVENC 9

Decoder

Decoder Model NVDEC 1

Decoder Model 2x NVDEC 6

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 1-Slots	PCIe 1-Slots
Height 69 mm (2.72") Width 160 mm (6.3") Depth 20 mm (0.79")	Height 69 mm (2.72") Width 167 mm (6.58") Depth 20 mm (0.79")
Cooling Open-Air 1x Fan	Cooling Blower 1x Fan

Chip

Manufacturer NVIDIA	Manufacturer NVIDIA
Chip Designer NVIDIA	Chip Designer NVIDIA
Architecture Maxwell	Architecture Blackwell
Family Quadro K	Family RTX PRO Blackwell
Branding	Branding
Codename NV117	Codename NV193
Chip Variant GM107-220-A2	Chip Variant GB203-200-A1
Market Segment Workstation	Market Segment Workstation
Release Date Jul 22, 2014	Release Date Aug 11, 2025

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 28nm	Fabrication Node 4NP
Die Size 148mm²	Die Size 378mm²
Transistor Count 1.9 Billion	Transistor Count 45.6 Billion
Transistor Density 12.64 MTr/mm²	Transistor Density 120.6 MTr/mm²

Images

No images available

No images available

Competitors

NVIDIAQuadro K620 vs GPU AMDRadeon PRO W7400 NVIDIAQuadro K620 vs GPU AMDRadeon PRO W7500 NVIDIAQuadro K620 vs GPU AMDRadeon PRO W7600

NVIDIARTX PRO 4000 Blackwell SFF vs GPU NVIDIARTX PRO 4000 Blackwell NVIDIARTX PRO 4000 Blackwell SFF vs GPU NVIDIARTX 4500 Ada NVIDIARTX PRO 4000 Blackwell SFF vs GPU NVIDIARTX PRO 2000 Blackwell Show 12 more