AMD Radeon RX 640 vs NVIDIA Quadro K620

Comparative analysis of AMD Radeon RX 640 and NVIDIA Quadro K620 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), Geekbench - OpenCL, PassMark - G2D Mark, PassMark - G3D Mark, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), 3DMark Fire Strike - Graphics Score.

AMD Radeon RX 640

NVIDIA Quadro K620

Differences

Reasons to consider the AMD Radeon RX 640

Videocard is newer: launch date 4 year(s) 9 month(s) later
Around 2% higher core clock speed: 1082 MHz vs 1058 MHz
Around 8% higher boost clock speed: 1218 MHz vs 1124 MHz
2168x more texture fill rate: 38.98 GTexel/s vs 17.98 GTexel / s
Around 33% higher pipelines: 512 vs 384
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 14 nm vs 28 nm
Around 10% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 3278 vs 2970
Around 10% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 3278 vs 2970
Around 51% better performance in Geekbench - OpenCL: 10390 vs 6869

Specifications (specs)
Launch date	13 May 2019 vs 22 July 2014
Core clock speed	1082 MHz vs 1058 MHz
Boost clock speed	1218 MHz vs 1124 MHz
Texture fill rate	38.98 GTexel/s vs 17.98 GTexel / s
Pipelines	512 vs 384
Manufacturing process technology	14 nm vs 28 nm
Benchmarks
GFXBench 4.0 - Car Chase Offscreen (Frames)	3278 vs 2970
GFXBench 4.0 - Car Chase Offscreen (Fps)	3278 vs 2970
Geekbench - OpenCL	10390 vs 6869

Reasons to consider the NVIDIA Quadro K620

Around 22% lower typical power consumption: 41 Watt vs 50 Watt
Around 3% higher memory clock speed: 1800 MHz vs 1750 MHz (7000 MHz effective)
Around 41% better performance in GFXBench 4.0 - Manhattan (Frames): 2490 vs 1769
Around 41% better performance in GFXBench 4.0 - Manhattan (Fps): 2490 vs 1769
Around 20% better performance in GFXBench 4.0 - T-Rex (Frames): 3329 vs 2775
Around 20% better performance in GFXBench 4.0 - T-Rex (Fps): 3329 vs 2775
Around 39% better performance in PassMark - G2D Mark: 472 vs 339
Around 14% better performance in PassMark - G3D Mark: 2233 vs 1954

Specifications (specs)
Thermal Design Power (TDP)	41 Watt vs 50 Watt
Memory clock speed	1800 MHz vs 1750 MHz (7000 MHz effective)
Benchmarks
GFXBench 4.0 - Manhattan (Frames)	2490 vs 1769
GFXBench 4.0 - Manhattan (Fps)	2490 vs 1769
GFXBench 4.0 - T-Rex (Frames)	3329 vs 2775
GFXBench 4.0 - T-Rex (Fps)	3329 vs 2775
PassMark - G2D Mark	472 vs 339
PassMark - G3D Mark	2233 vs 1954

Compare benchmarks

GPU 1: AMD Radeon RX 640
GPU 2: NVIDIA Quadro K620

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

1769

2490

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

1769

2490

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

2775

3329

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

2775

3329

GFXBench 4.0 - Car Chase Offscreen (Frames)

GPU 1

GPU 2

3278

2970

GFXBench 4.0 - Car Chase Offscreen (Fps)

GPU 1

GPU 2

3278

2970

Geekbench - OpenCL

GPU 1

GPU 2

10390

6869

PassMark - G2D Mark

GPU 1

GPU 2

339

472

PassMark - G3D Mark

GPU 1

GPU 2

1954

2233

Name	AMD Radeon RX 640	NVIDIA Quadro K620
GFXBench 4.0 - Manhattan (Frames)	1769	2490
GFXBench 4.0 - Manhattan (Fps)	1769	2490
GFXBench 4.0 - T-Rex (Frames)	2775	3329
GFXBench 4.0 - T-Rex (Fps)	2775	3329
GFXBench 4.0 - Car Chase Offscreen (Frames)	3278	2970
GFXBench 4.0 - Car Chase Offscreen (Fps)	3278	2970
Geekbench - OpenCL	10390	6869
PassMark - G2D Mark	339	472
PassMark - G3D Mark	1954	2233
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		22.112
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		297.631
CompuBench 1.5 Desktop - T-Rex (Frames/s)		1.427
CompuBench 1.5 Desktop - Video Composition (Frames/s)		15.363
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		99.125
3DMark Fire Strike - Graphics Score		702

Compare specifications (specs)

	AMD Radeon RX 640	NVIDIA Quadro K620
Essentials
Architecture	GCN 4.0	Maxwell
Code name	Arctic Islands	GM107
Launch date	13 May 2019	22 July 2014
Place in performance rating	811	974
Launch price (MSRP)		$189.89
Price now		$189.93
Type		Workstation
Value for money (0-100)		15.23
Technical info
Boost clock speed	1218 MHz	1124 MHz
Compute units	8
Core clock speed	1082 MHz	1058 MHz
Manufacturing process technology	14 nm	28 nm
Peak Double Precision (FP64) Performance	77.95 GFLOPS
Peak Half Precision (FP16) Performance	1247 GFLOPS
Peak Single Precision (FP32) Performance	1247 GFLOPS
Pipelines	512	384
Pixel fill rate	19.49 GPixel/s
Texture fill rate	38.98 GTexel/s	17.98 GTexel / s
Thermal Design Power (TDP)	50 Watt	41 Watt
Transistor count	2200 million	1,870 million
Floating-point performance		863.2 gflops
Video outputs and ports
Display Connectors	1x DVI, 1x HDMI, 1x DisplayPort	1x DVI, 1x DisplayPort, DVI-I DP
DisplayPort support
HDMI
Number of simultaneous displays		4
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	PCIe 2.0 x16
Length	5.7 inches (145 mm)	160 mm
Recommended system power (PSU)	350 Watt
Supplementary power connectors	None	None
Width	Dual-slot	1" (2.5 cm)
API support
DirectX	12	12
OpenCL	2.0
OpenGL	4.6	4.5
Shader Model	6.4	5
Vulkan
Memory
Maximum RAM amount	2 GB	2 GB
Memory bandwidth	112.0 GB/s
Memory bus width	128 bit	128 Bit
Memory clock speed	1750 MHz (7000 MHz effective)	1800 MHz
Memory type	GDDR5	128 Bit
Technologies
Unified Video Decoder (UVD)
Video Code Engine (VCE)
3D Vision Pro
Mosaic
nView Desktop Management