Iris Plus Graphics 645 vs UHD Graphics G1 (Ice Lake 32 EU)

Place in the ranking	748	661
Place by popularity	not in top-100	not in top-100
Power efficiency	8.65	20.51
Architecture	Gen. 11 Ice Lake (2019−2022)	Generation 9.5 (2016−2020)
GPU code name	Ice Lake G1 Gen. 11	Coffee Lake GT3e
Market segment	Laptop	Laptop
Release date	28 May 2019 (5 years ago)	7 October 2019 (5 years ago)

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	32	384
Core clock speed	300 MHz	300 MHz
Boost clock speed	1100 MHz	1050 MHz
Manufacturing process technology	10 nm	14 nm+++
Power consumption (TDP)	12-25 Watt	15 Watt
Texture fill rate	no data	50.40
Floating-point processing power	no data	0.8064 TFLOPS
ROPs	no data	6
TMUs	no data	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

no data

Ring Bus

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	DDR4	System Shared
Maximum RAM amount	no data	System Shared
Memory bus width	no data	System Shared
Memory clock speed	no data	System Shared
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

no data

Portable Device Dependent

Supported technologies

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

Quick Sync

API compatibility

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

DirectX	12_1	12 (12_1)
Shader Model	no data	6.4
OpenGL	no data	4.6
OpenCL	no data	3.0
Vulkan	-	1.3

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.

UHD Graphics G1 (Ice Lake 32 EU) 3.13

Iris Plus Graphics 645 4.45
+42.2%

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

UHD Graphics G1 (Ice Lake 32 EU) 2127

Iris Plus Graphics 645 2985
+40.3%

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

UHD Graphics G1 (Ice Lake 32 EU) 1521

Iris Plus Graphics 645 1893
+24.5%

3DMark Time Spy Graphics

UHD Graphics G1 (Ice Lake 32 EU) 425

Iris Plus Graphics 645 550
+29.6%

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	13 −92.3%	25 +92.3%
4K	9 −33.3%	12−14 +33.3%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

6−7

−16.7%

7−8
+16.7%

Full HD
Medium Preset

Assassin's Creed Odyssey	8 −37.5%	10−12 +37.5%
Assassin's Creed Valhalla	1−2 −200%	3−4 +200%
Battlefield 5	5−6 −80%	9−10 +80%
Call of Duty: Modern Warfare	10 +11.1%	9−10 −11.1%
Cyberpunk 2077	6−7 −16.7%	7−8 +16.7%
Far Cry 5	6−7 −33.3%	8−9 +33.3%
Far Cry New Dawn	8−9 −37.5%	10−12 +37.5%
Forza Horizon 4	16−18 −50%	24−27 +50%
Hitman 3	6 −50%	9−10 +50%
Horizon Zero Dawn	21−24 −17.4%	27−30 +17.4%
Metro Exodus	12 +50%	8−9 −50%
Red Dead Redemption 2	6 −66.7%	10−11 +66.7%
Shadow of the Tomb Raider	12−14 −15.4%	14−16 +15.4%
Watch Dogs: Legion	35−40 −10.3%	40−45 +10.3%

Full HD
High Preset

Assassin's Creed Odyssey	9−10 −22.2%	10−12 +22.2%
Assassin's Creed Valhalla	1−2 −200%	3−4 +200%
Battlefield 5	5−6 −80%	9−10 +80%
Call of Duty: Modern Warfare	7−8 −28.6%	9−10 +28.6%
Cyberpunk 2077	6−7 −16.7%	7−8 +16.7%
Far Cry 5	6−7 −33.3%	8−9 +33.3%
Far Cry New Dawn	8−9 −37.5%	10−12 +37.5%
Forza Horizon 4	16−18 −50%	24−27 +50%
Hitman 3	8−9 −12.5%	9−10 +12.5%
Horizon Zero Dawn	21−24 −17.4%	27−30 +17.4%
Metro Exodus	4−5 −100%	8−9 +100%
Red Dead Redemption 2	7−8 −42.9%	10−11 +42.9%
Shadow of the Tomb Raider	11 −36.4%	14−16 +36.4%
The Witcher 3: Wild Hunt	14−16 −14.3%	16−18 +14.3%
Watch Dogs: Legion	35−40 −10.3%	40−45 +10.3%

Full HD
Ultra Preset

Assassin's Creed Odyssey	9−10 −22.2%	10−12 +22.2%
Assassin's Creed Valhalla	1−2 −200%	3−4 +200%
Call of Duty: Modern Warfare	7−8 −28.6%	9−10 +28.6%
Cyberpunk 2077	6−7 −16.7%	7−8 +16.7%
Far Cry 5	6−7 −33.3%	8−9 +33.3%
Forza Horizon 4	16−18 −50%	24−27 +50%
Hitman 3	8−9 −12.5%	9−10 +12.5%
Horizon Zero Dawn	21−24 −17.4%	27−30 +17.4%
Shadow of the Tomb Raider	13 −15.4%	14−16 +15.4%
The Witcher 3: Wild Hunt	5 −220%	16−18 +220%
Watch Dogs: Legion	35−40 −10.3%	40−45 +10.3%

Full HD
Epic Preset

Red Dead Redemption 2

7−8

−42.9%

10−11
+42.9%

1440p
High Preset

Battlefield 5	5−6 −40%	7−8 +40%
Far Cry New Dawn	5−6 −20%	6−7 +20%

1440p
Ultra Preset

Assassin's Creed Odyssey	3−4 −33.3%	4−5 +33.3%
Call of Duty: Modern Warfare	2−3 −50%	3−4 +50%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Far Cry 5	3−4 −66.7%	5−6 +66.7%
Hitman 3	8−9 +0%	8−9 +0%
Horizon Zero Dawn	8−9 −12.5%	9−10 +12.5%
The Witcher 3: Wild Hunt	2−3 −50%	3−4 +50%
Watch Dogs: Legion	18−20 −38.9%	24−27 +38.9%

1440p
Epic Preset

Red Dead Redemption 2

6−7

−33.3%

8−9
+33.3%

4K
High Preset

Battlefield 5	1−2 −100%	2−3 +100%
Far Cry New Dawn	2−3 +0%	2−3 +0%

4K
Ultra Preset

Assassin's Creed Odyssey	2−3 −50%	3−4 +50%
Assassin's Creed Valhalla	1−2 −100%	2−3 +100%
Call of Duty: Modern Warfare	1−2 +0%	1−2 +0%
Far Cry 5	1−2 −100%	2−3 +100%
Forza Horizon 4	1−2 −100%	2−3 +100%
Watch Dogs: Legion	1−2 +0%	1−2 +0%

4K
Epic Preset

Red Dead Redemption 2

4−5

−25%

5−6
+25%

1440p
Ultra Preset

Forza Horizon 4

4−5

+0%

4−5

+0%

4K
High Preset

Hitman 3	0−1	0−1
Metro Exodus	0−1	0−1

4K
Ultra Preset

Cyberpunk 2077

0−1

This is how UHD Graphics G1 (Ice Lake 32 EU) and Iris Plus Graphics 645 compete in popular games:

Iris Plus Graphics 645 is 92% faster in 1080p
Iris Plus Graphics 645 is 33% faster in 4K

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

in Metro Exodus, with 1080p resolution and the Medium Preset, the UHD Graphics G1 (Ice Lake 32 EU) is 50% faster.
in The Witcher 3: Wild Hunt, with 1080p resolution and the Ultra Preset, the Iris Plus Graphics 645 is 220% faster.

All in all, in popular games: