Iris Plus Graphics 645 vs GeForce GT 755M Mac Edition

Place in performance ranking	825	657
Place by popularity	not in top-100	not in top-100
Architecture	Kepler (2012−2018)	Gen. 9.5 Coffee Lake (2019)
GPU code name	GK107	Kaby Lake GT3e
Market segment	Desktop	Laptop
Release date	8 November 2013 (10 years ago)	10 July 2019 (4 years ago)
Current price	$50	no data

Detailed specifications

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	384	48
Core clock speed	1085 MHz	300 MHz
Boost clock speed	no data	1150 MHz
Number of transistors	1,270 million	no data
Manufacturing process technology	28 nm	14 nm
Power consumption (TDP)	50 Watt	15 Watt
Texture fill rate	34.72	50.40
Floating-point performance	833.3 gflops	no data

Form factor & compatibility

Information on GeForce GT 755M Mac Edition and Iris Plus Graphics 645 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Interface	PCIe 3.0 x16	PCIe 3.0 x1
Width	MXM Module	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	GDDR5	DDR3, DDR4
Maximum RAM amount	1 GB	System Shared
Memory bus width	128 Bit	System Shared
Memory clock speed	5000 MHz	System Shared
Memory bandwidth	80 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

No outputs

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

DirectX	12 (11_0)	12 (12_1)
Shader Model	5.1	6.4
OpenGL	4.6	4.6
OpenCL	1.2	2.1
Vulkan	1.1.126	1.1.103
CUDA	3.0	no data

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

−100%

28
+100%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

3−4

−133%

7−8
+133%

Full HD
Medium Preset

Assassin's Creed Odyssey	4−5 −100%	8−9 +100%
Assassin's Creed Valhalla	1−2 −100%	2−3 +100%
Battlefield 5	4−5 −125%	9−10 +125%
Call of Duty: Modern Warfare	4−5 −125%	9−10 +125%
Cyberpunk 2077	3−4 −133%	7−8 +133%
Far Cry 5	4−5 −100%	8−9 +100%
Far Cry New Dawn	5−6 −120%	10−12 +120%
Forza Horizon 4	9−10 −100%	18−20 +100%
Hitman 3	4−5 −100%	8−9 +100%
Horizon Zero Dawn	10−11 −120%	21−24 +120%
Metro Exodus	2−3 −150%	5−6 +150%
Red Dead Redemption 2	5−6 −100%	10−11 +100%
Shadow of the Tomb Raider	8−9 −87.5%	14−16 +87.5%
Watch Dogs: Legion	10−11 −90%	18−20 +90%

Full HD
High Preset

Assassin's Creed Odyssey	4−5 −100%	8−9 +100%
Assassin's Creed Valhalla	1−2 −100%	2−3 +100%
Battlefield 5	4−5 −125%	9−10 +125%
Call of Duty: Modern Warfare	4−5 −125%	9−10 +125%
Cyberpunk 2077	3−4 −133%	7−8 +133%
Far Cry 5	4−5 −100%	8−9 +100%
Far Cry New Dawn	5−6 −120%	10−12 +120%
Forza Horizon 4	9−10 −100%	18−20 +100%
Hitman 3	4−5 −100%	8−9 +100%
Horizon Zero Dawn	10−11 −120%	21−24 +120%
Metro Exodus	2−3 −150%	5−6 +150%
Red Dead Redemption 2	5−6 −100%	10−11 +100%
Shadow of the Tomb Raider	8−9 −87.5%	14−16 +87.5%
The Witcher 3: Wild Hunt	4−5 −125%	9−10 +125%
Watch Dogs: Legion	10−11 −90%	18−20 +90%

Full HD
Ultra Preset

Assassin's Creed Odyssey	4−5 −100%	8−9 +100%
Assassin's Creed Valhalla	1−2 −100%	2−3 +100%
Call of Duty: Modern Warfare	4−5 −125%	9−10 +125%
Cyberpunk 2077	3−4 −133%	7−8 +133%
Far Cry 5	4−5 −100%	8−9 +100%
Forza Horizon 4	9−10 −100%	18−20 +100%
Horizon Zero Dawn	10−11 −120%	21−24 +120%
Shadow of the Tomb Raider	8−9 −87.5%	14−16 +87.5%
The Witcher 3: Wild Hunt	4−5 −125%	9−10 +125%
Watch Dogs: Legion	10−11 −90%	18−20 +90%

Full HD
Epic Preset

Red Dead Redemption 2

5−6
−100%

10−11

+100%

1440p
High Preset

Battlefield 5	3−4 −133%	7−8 +133%
Far Cry New Dawn	2−3 −150%	5−6 +150%

1440p
Ultra Preset

Assassin's Creed Odyssey	2−3 −100%	4−5 +100%
Call of Duty: Modern Warfare	3−4 −100%	6−7 +100%
Cyberpunk 2077	1−2 −100%	2−3 +100%
Far Cry 5	3−4 −100%	6−7 +100%
Forza Horizon 4	3−4 −100%	6−7 +100%
Hitman 3	4−5 −100%	8−9 +100%
Horizon Zero Dawn	4−5 −125%	9−10 +125%
The Witcher 3: Wild Hunt	1−2 −200%	3−4 +200%
Watch Dogs: Legion	0−1	1−2

1440p
Epic Preset

Red Dead Redemption 2

4−5

−100%

8−9
+100%

4K
High Preset

Battlefield 5	1−2 −100%	2−3 +100%
Far Cry New Dawn	1−2 −100%	2−3 +100%
Hitman 3	0−1	0−1
Horizon Zero Dawn	2−3 −100%	4−5 +100%
Shadow of the Tomb Raider	0−1	1−2

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −200%	3−4 +200%
Assassin's Creed Valhalla	0−1	1−2
Call of Duty: Modern Warfare	0−1	1−2
Cyberpunk 2077	0−1	0−1
Far Cry 5	1−2 −100%	2−3 +100%
Forza Horizon 4	1−2 −100%	2−3 +100%
Horizon Zero Dawn	2−3 −100%	4−5 +100%
Metro Exodus	3−4 −100%	6−7 +100%
Watch Dogs: Legion	0−1	1−2