Iris Plus Graphics 655 vs Quadro K620

Place in the ranking	597	663
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.61	no data
Power efficiency	8.82	20.51
Architecture	Maxwell (2014−2017)	Generation 9.5 (2016−2020)
GPU code name	GM107	Coffee Lake GT3e
Market segment	Workstation	Laptop
Release date	22 July 2014 (10 years ago)	3 April 2018 (6 years ago)
Launch price (MSRP)	$189.89	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	384	384
Core clock speed	1058 MHz	300 MHz
Boost clock speed	1124 MHz	1050 MHz
Number of transistors	1,870 million	189 million
Manufacturing process technology	28 nm	14 nm+++
Power consumption (TDP)	41 Watt	15 Watt
Texture fill rate	26.98	50.40
Floating-point processing power	0.8632 TFLOPS	0.8064 TFLOPS
ROPs	16	6
TMUs	24	48

Form factor & 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	Ring Bus
Length	160 mm	no data
Width	1" (2.5 cm)	no data
Supplementary power connectors	None	no data

VRAM capacity and type

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	128 Bit	System Shared
Maximum RAM amount	2 GB	System Shared
Memory bus width	128 Bit	System Shared
Memory clock speed	900 MHz	System Shared
Memory bandwidth	Up to 29 GB/s	no data
Shared memory	no data	+

Connectivity and outputs

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, 1x DisplayPort	Portable Device Dependent
Number of simultaneous displays	4	no data

Supported 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
Quick Sync	no data	+

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12	12 (12_1)
Shader Model	5.1	6.4
OpenGL	4.5	4.6
OpenCL	1.2	3.0
Vulkan	1.1.126	1.3
CUDA	5.0	-

Synthetic benchmark performance

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

Combined synthetic benchmark score

This is our combined benchmark 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 K620 5.79
+29%

Iris Plus Graphics 655 4.49

Passmark

This is the most ubiquitous GPU benchmark. 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.

Quadro K620 2232
+28.9%

Iris Plus Graphics 655 1731

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD	24−27 +20%	20 −20%
1440p	12−14 +20%	10 −20%
4K	14−16 +16.7%	12 −16.7%

Cost per frame, $

1080p	7.91	no data
1440p	15.82	no data
4K	13.56	no data

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

7−8

+0%

7−8

+0%

Full HD
Medium Preset

Assassin's Creed Odyssey	12−14 +0%	12−14 +0%
Assassin's Creed Valhalla	4−5 +0%	4−5 +0%
Battlefield 5	10−11 +0%	10−11 +0%
Call of Duty: Modern Warfare	9−10 +0%	9−10 +0%
Cyberpunk 2077	7−8 +0%	7−8 +0%
Far Cry 5	9−10 +0%	9−10 +0%
Far Cry New Dawn	12−14 +0%	12−14 +0%
Forza Horizon 4	46 +0%	46 +0%
Hitman 3	10−11 +0%	10−11 +0%
Horizon Zero Dawn	27−30 +0%	27−30 +0%
Metro Exodus	9−10 +0%	9−10 +0%
Red Dead Redemption 2	10−12 +0%	10−12 +0%
Shadow of the Tomb Raider	23 +0%	23 +0%
Watch Dogs: Legion	40−45 +0%	40−45 +0%

Full HD
High Preset

Assassin's Creed Odyssey	12−14 +0%	12−14 +0%
Assassin's Creed Valhalla	4−5 +0%	4−5 +0%
Battlefield 5	10−11 +0%	10−11 +0%
Call of Duty: Modern Warfare	9−10 +0%	9−10 +0%
Cyberpunk 2077	7−8 +0%	7−8 +0%
Far Cry 5	9−10 +0%	9−10 +0%
Far Cry New Dawn	12−14 +0%	12−14 +0%
Forza Horizon 4	40 +0%	40 +0%
Hitman 3	10−11 +0%	10−11 +0%
Horizon Zero Dawn	27−30 +0%	27−30 +0%
Metro Exodus	9−10 +0%	9−10 +0%
Red Dead Redemption 2	10−12 +0%	10−12 +0%
Shadow of the Tomb Raider	17 +0%	17 +0%
The Witcher 3: Wild Hunt	16−18 +0%	16−18 +0%
Watch Dogs: Legion	40−45 +0%	40−45 +0%

Full HD
Ultra Preset

Assassin's Creed Odyssey	12−14 +0%	12−14 +0%
Assassin's Creed Valhalla	4−5 +0%	4−5 +0%
Call of Duty: Modern Warfare	9−10 +0%	9−10 +0%
Cyberpunk 2077	7−8 +0%	7−8 +0%
Far Cry 5	9−10 +0%	9−10 +0%
Forza Horizon 4	24−27 +0%	24−27 +0%
Hitman 3	10−11 +0%	10−11 +0%
Horizon Zero Dawn	10 +0%	10 +0%
Shadow of the Tomb Raider	15 +0%	15 +0%
The Witcher 3: Wild Hunt	6 +0%	6 +0%
Watch Dogs: Legion	40−45 +0%	40−45 +0%

Full HD
Epic Preset

Red Dead Redemption 2

10−12

+0%

10−12

+0%

1440p
High Preset

Battlefield 5	8−9 +0%	8−9 +0%
Far Cry New Dawn	6−7 +0%	6−7 +0%

1440p
Ultra Preset

Assassin's Creed Odyssey	4−5 +0%	4−5 +0%
Call of Duty: Modern Warfare	3−4 +0%	3−4 +0%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Far Cry 5	5−6 +0%	5−6 +0%
Forza Horizon 4	6−7 +0%	6−7 +0%
Hitman 3	9−10 +0%	9−10 +0%
Horizon Zero Dawn	10−11 +0%	10−11 +0%
Metro Exodus	0−1	0−1
The Witcher 3: Wild Hunt	3−4 +0%	3−4 +0%
Watch Dogs: Legion	24−27 +0%	24−27 +0%

1440p
Epic Preset

Red Dead Redemption 2

8−9

+0%

8−9

+0%

4K
High Preset

Battlefield 5	3−4 +0%	3−4 +0%
Far Cry New Dawn	3−4 +0%	3−4 +0%
Hitman 3	0−1	0−1
Horizon Zero Dawn	1−2 +0%	1−2 +0%
Metro Exodus	1−2 +0%	1−2 +0%

4K
Ultra Preset

Assassin's Creed Odyssey	3−4 +0%	3−4 +0%
Assassin's Creed Valhalla	2−3 +0%	2−3 +0%
Call of Duty: Modern Warfare	2−3 +0%	2−3 +0%
Cyberpunk 2077	0−1	0−1
Far Cry 5	2−3 +0%	2−3 +0%
Forza Horizon 4	3−4 +0%	3−4 +0%
Watch Dogs: Legion	1−2 +0%	1−2 +0%

4K
Epic Preset

Red Dead Redemption 2

5−6

+0%

5−6

+0%

This is how Quadro K620 and Iris Plus Graphics 655 compete in popular games:

Quadro K620 is 20% faster in 1080p
Quadro K620 is 20% faster in 1440p
Quadro K620 is 17% faster in 4K

All in all, in popular games:

there's a draw in 65 tests (100%)

Pros & cons summary

Performance score	5.79	4.49
Recency	22 July 2014	3 April 2018
Chip lithography	28 nm	14 nm
Power consumption (TDP)	41 Watt	15 Watt

Quadro K620 has a 29% higher aggregate performance score.

Iris Plus Graphics 655, on the other hand, has an age advantage of 3 years, a 100% more advanced lithography process, and 173.3% lower power consumption.

The Quadro K620 is our recommended choice as it beats the Iris Plus Graphics 655 in performance tests.

Be aware that Quadro K620 is a workstation card while Iris Plus Graphics 655 is a notebook one.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.