GeForce GTX 1660 vs Iris Pro Graphics P580

Place in the ranking	620	188
Place by popularity	not in top-100	40
Cost-effectiveness evaluation	no data	46.96
Power efficiency	24.09	17.40
Architecture	Generation 9.0 (2015−2016)	Turing (2018−2022)
GPU code name	Skylake GT4e	TU116
Market segment	Laptop	Desktop
Release date	1 September 2015 (9 years ago)	14 March 2019 (5 years ago)
Launch price (MSRP)	no data	$219

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	576	1408
Core clock speed	350 MHz	1530 MHz
Boost clock speed	1050 MHz	1785 MHz
Number of transistors	189 million	6,600 million
Manufacturing process technology	14 nm+	12 nm
Power consumption (TDP)	15 Watt	120 Watt
Texture fill rate	75.60	157.1
Floating-point processing power	1.21 TFLOPS	5.027 TFLOPS
ROPs	9	48
TMUs	72	88

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	Ring Bus	PCIe 3.0 x16
Length	no data	229 mm
Width	no data	2-slot
Supplementary power connectors	no data	1x 8-pin

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	DDR3L/LPDDR3/DDR4	GDDR5
Maximum RAM amount	64 GB	6 GB
Memory bus width	System Shared	192 Bit
Memory clock speed	System Shared	2001 MHz
Memory bandwidth	no data	192.1 GB/s
Shared memory	+	-

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	Portable Device Dependent	1x DVI, 1x HDMI, 1x DisplayPort
HDMI	-	+

Supported technologies

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

Quick Sync

no data

API compatibility

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

DirectX	12 (12_1)	12 (12_1)
Shader Model	6.4	6.5
OpenGL	4.6	4.6
OpenCL	3.0	1.2
Vulkan	1.3	1.2.131
CUDA	-	7.5

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.

Iris Pro Graphics P580 5.25

GTX 1660 30.33
+478%

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.

Iris Pro Graphics P580 2020

GTX 1660 11662
+477%

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	14−16 −500%	84 +500%
1440p	8−9 −538%	51 +538%
4K	4−5 −575%	27 +575%

Cost per frame, $

1080p	no data	2.61
1440p	no data	4.29
4K	no data	8.11

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	12−14 −454%	72 +454%
Cyberpunk 2077	10−12 −545%	71 +545%
Elden Ring	12−14 −546%	84 +546%

Full HD
Medium Preset

Battlefield 5	16−18 −456%	85−90 +456%
Counter-Strike 2	12−14 −331%	56 +331%
Cyberpunk 2077	10−12 −400%	55 +400%
Forza Horizon 4	21−24 −500%	132 +500%
Metro Exodus	12−14 −631%	95 +631%
Red Dead Redemption 2	16−18 −600%	112 +600%
Valorant	12−14 −962%	138 +962%

Full HD
High Preset

Battlefield 5	16−18 −456%	85−90 +456%
Counter-Strike 2	12−14 −269%	48 +269%
Cyberpunk 2077	10−12 −309%	45 +309%
Dota 2	16−18 −782%	150 +782%
Elden Ring	12−14 −592%	90 +592%
Far Cry 5	24−27 −480%	145 +480%
Fortnite	30−35 −365%	140−150 +365%
Forza Horizon 4	21−24 −400%	110 +400%
Grand Theft Auto V	16−18 −576%	115 +576%
Metro Exodus	12−14 −408%	66 +408%
PLAYERUNKNOWN'S BATTLEGROUNDS	40−45 −391%	216 +391%
Red Dead Redemption 2	16−18 −150%	40 +150%
The Witcher 3: Wild Hunt	16−18 −500%	100−110 +500%
Valorant	12−14 −400%	65 +400%
World of Tanks	85−90 −222%	270−280 +222%

Full HD
Ultra Preset

Battlefield 5	16−18 −456%	85−90 +456%
Counter-Strike 2	12−14 −231%	43 +231%
Cyberpunk 2077	10−12 −245%	38 +245%
Dota 2	16−18 −1059%	197 +1059%
Far Cry 5	24−27 −240%	85−90 +240%
Forza Horizon 4	21−24 −332%	95 +332%
PLAYERUNKNOWN'S BATTLEGROUNDS	40−45 −302%	170−180 +302%
Valorant	12−14 −785%	115 +785%

1440p
High Preset

Dota 2	4−5 −1200%	52 +1200%
Elden Ring	6−7 −683%	47 +683%
Grand Theft Auto V	5−6 −940%	52 +940%
PLAYERUNKNOWN'S BATTLEGROUNDS	30−35 −279%	129 +279%
Red Dead Redemption 2	4−5 −525%	25 +525%
World of Tanks	35−40 −416%	190−200 +416%

1440p
Ultra Preset

Battlefield 5	8−9 −650%	60−65 +650%
Counter-Strike 2	9−10 −189%	26 +189%
Cyberpunk 2077	4−5 −475%	23 +475%
Far Cry 5	10−12 −755%	90−95 +755%
Forza Horizon 4	8−9 −738%	67 +738%
Metro Exodus	5−6 −1080%	59 +1080%
The Witcher 3: Wild Hunt	6−7 −700%	45−50 +700%
Valorant	14−16 −414%	72 +414%

4K
High Preset

Dota 2	16−18 −188%	49 +188%
Elden Ring	3−4 −600%	21 +600%
Grand Theft Auto V	16−18 −206%	49 +206%
Metro Exodus	1−2 −1900%	20 +1900%
PLAYERUNKNOWN'S BATTLEGROUNDS	14−16 −440%	81 +440%
Red Dead Redemption 2	3−4 −533%	18−20 +533%
The Witcher 3: Wild Hunt	16−18 −206%	49 +206%

4K
Ultra Preset

Battlefield 5	4−5 −725%	30−35 +725%
Cyberpunk 2077	2−3 −400%	10 +400%
Dota 2	16−18 −412%	87 +412%
Far Cry 5	6−7 −600%	40−45 +600%
Fortnite	4−5 −900%	40−45 +900%
Forza Horizon 4	4−5 −800%	36 +800%
Valorant	5−6 −660%	38 +660%

4K
High Preset

Counter-Strike 2

+0%

4K
Ultra Preset

Counter-Strike 2

27−30

+0%

27−30

+0%

This is how Iris Pro Graphics P580 and GTX 1660 compete in popular games:

GTX 1660 is 500% faster in 1080p
GTX 1660 is 538% faster in 1440p
GTX 1660 is 575% faster in 4K

Here's the range of performance differences observed across popular games:

in Metro Exodus, with 4K resolution and the High Preset, the GTX 1660 is 1900% faster.

All in all, in popular games:

GTX 1660 is ahead in 61 test (97%)
there's a draw in 2 tests (3%)

Pros & cons summary

Performance score	5.25	30.33
Recency	1 September 2015	14 March 2019
Maximum RAM amount	64 GB	6 GB
Chip lithography	14 nm	12 nm
Power consumption (TDP)	15 Watt	120 Watt

Iris Pro Graphics P580 has a 966.7% higher maximum VRAM amount, and 700% lower power consumption.

GTX 1660, on the other hand, has a 477.7% higher aggregate performance score, an age advantage of 3 years, and a 16.7% more advanced lithography process.

The GeForce GTX 1660 is our recommended choice as it beats the Iris Pro Graphics P580 in performance tests.

Be aware that Iris Pro Graphics P580 is a notebook card while GeForce GTX 1660 is a desktop one.

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