Quadro K620 vs K4000

Place in performance ranking	516	560
Place by popularity	not in top-100	not in top-100
Value for money	1.57	1.20
Architecture	Kepler (2012−2018)	Maxwell (2014−2018)
GPU code name	GK106	GM107
Market segment	Workstation	Workstation
Release date	1 March 2013 (11 years ago)	22 July 2014 (9 years ago)
Launch price (MSRP)	$1,269	$189.89
Current price	$330 (0.3x MSRP)	$286 (1.5x MSRP)

Value for money

Performance to price ratio. The higher, the better.

Quadro K4000 has 31% better value for money than Quadro K620.

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	768	384
Core clock speed	810 MHz	1058 MHz
Boost clock speed	no data	1124 MHz
Number of transistors	2,540 million	1,870 million
Manufacturing process technology	28 nm	28 nm
Power consumption (TDP)	80 Watt	41 Watt
Texture fill rate	51.84	26.98
Floating-point performance	1,244 gflops	863.2 gflops

Size and compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	241 mm	160 mm
Width	1-slot	1" (2.5 cm)
Supplementary power connectors	1x 6-pin	None

Memory

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR5	128 Bit
Maximum RAM amount	3 GB	2 GB
Memory bus width	192 Bit	128 Bit
Memory clock speed	5616 MHz	1800 MHz
Memory bandwidth	134.8 GB/s	Up to 29 GB/s

Video outputs and ports

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	1x DVI, 2x DisplayPort	DVI-I DP
Number of simultaneous displays	no data	4

Technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Vision Pro	no data	+
Mosaic	no data	+
nView Desktop Management	no data	+

API support

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX	12 (11_0)	12
Shader Model	5.1	5
OpenGL	4.6	4.5
OpenCL	1.2	1.2
Vulkan	+	+
CUDA	3.0	5.0

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Quadro K4000 7.03
+21.8%

Quadro K620 5.77

K4000 outperforms K620 by 22% based on our aggregated benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

Quadro K4000 2723
+21.8%

Quadro K620 2235

K4000 outperforms K620 by 22% in Passmark.

GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

Benchmark coverage: 9%

Quadro K4000 6659
+0.8%

Quadro K620 6607

K4000 outperforms K620 by 1% in GeekBench 5 OpenCL.

GeekBench 5 Vulkan

Benchmark coverage: 5%

Quadro K4000 6777
+15.3%

Quadro K620 5876

K4000 outperforms K620 by 15% in GeekBench 5 Vulkan.

GeekBench 5 CUDA

Benchmark coverage: 4%

Quadro K4000 5210

Quadro K620 6653
+27.7%

K620 outperforms K4000 by 28% in GeekBench 5 CUDA.

Octane Render OctaneBench

This is a special benchmark measuring graphics card performance in OctaneRender, which is a realistic GPU rendering engine by OTOY Inc., available either as a standalone program, or as a plugin for 3DS Max, Cinema 4D and many other apps. It renders four different static scenes, then compares render times with a reference GPU which is currently GeForce GTX 980. This benchmark has nothing to do with gaming and is aimed at professional 3D graphics artists.

Benchmark coverage: 4%

Quadro K4000 22
+15.8%

Quadro K620 19

K4000 outperforms K620 by 16% in Octane Render OctaneBench.