GeForce GT 640M Mac Edition vs Iris Pro Graphics 580

Place in the ranking	647	1100
Place by popularity	not in top-100	not in top-100
Power efficiency	21.99	2.26
Architecture	Generation 9.0 (2015−2016)	Kepler (2012−2018)
GPU code name	Skylake GT4e	GK107
Market segment	Laptop	Laptop
Release date	1 September 2015 (9 years ago)	3 February 2013 (11 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	576	384
Core clock speed	350 MHz	745 MHz
Boost clock speed	950 MHz	no data
Number of transistors	189 million	1,270 million
Manufacturing process technology	14 nm+	28 nm
Power consumption (TDP)	15 Watt	32 Watt
Texture fill rate	68.40	23.84
Floating-point processing power	1.094 TFLOPS	0.5722 TFLOPS
ROPs	9	8
TMUs	72	32

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

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	512 MB
Memory bus width	System Shared	64 Bit
Memory clock speed	System Shared	1250 MHz
Memory bandwidth	no data	40 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

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

DirectX	12 (12_1)	12 (11_0)
Shader Model	6.4	5.1
OpenGL	4.6	4.6
OpenCL	3.0	1.2
Vulkan	1.3	1.1.126
CUDA	-	3.0

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

19
+375%

4−5

−375%

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	12−14 +550%	2−3 −550%
Cyberpunk 2077	10−11 +400%	2−3 −400%

Full HD
Medium Preset

Battlefield 5	14−16 +367%	3−4 −367%
Counter-Strike 2	12−14 +550%	2−3 −550%
Cyberpunk 2077	10−11 +400%	2−3 −400%
Forza Horizon 4	20−22 +400%	4−5 −400%
Forza Horizon 5	9−10 +800%	1−2 −800%
Metro Exodus	10−12 +450%	2−3 −450%
Red Dead Redemption 2	14−16 +400%	3−4 −400%
Valorant	12−14 +550%	2−3 −550%

Full HD
High Preset

Battlefield 5	14−16 +367%	3−4 −367%
Counter-Strike 2	12−14 +550%	2−3 −550%
Cyberpunk 2077	10−11 +400%	2−3 −400%
Dota 2	5 +400%	1−2 −400%
Far Cry 5	24−27 +380%	5−6 −380%
Fortnite	27−30 +367%	6−7 −367%
Forza Horizon 4	20−22 +400%	4−5 −400%
Forza Horizon 5	9−10 +800%	1−2 −800%
Grand Theft Auto V	16−18 +433%	3−4 −433%
Metro Exodus	10−12 +450%	2−3 −450%
PLAYERUNKNOWN'S BATTLEGROUNDS	40−45 +413%	8−9 −413%
Red Dead Redemption 2	14−16 +400%	3−4 −400%
The Witcher 3: Wild Hunt	16−18 +433%	3−4 −433%
Valorant	12−14 +550%	2−3 −550%
World of Tanks	75−80 +394%	16−18 −394%

Full HD
Ultra Preset

Battlefield 5	14−16 +367%	3−4 −367%
Counter-Strike 2	12−14 +550%	2−3 −550%
Cyberpunk 2077	10−11 +400%	2−3 −400%
Dota 2	14 +367%	3−4 −367%
Far Cry 5	24−27 +380%	5−6 −380%
Forza Horizon 4	20−22 +400%	4−5 −400%
Forza Horizon 5	9−10 +800%	1−2 −800%
PLAYERUNKNOWN'S BATTLEGROUNDS	40−45 +413%	8−9 −413%
Valorant	12−14 +550%	2−3 −550%

1440p
High Preset

Dota 2	4−5	0−1
Grand Theft Auto V	5−6 +400%	1−2 −400%
PLAYERUNKNOWN'S BATTLEGROUNDS	30−35 +357%	7−8 −357%
Red Dead Redemption 2	4−5	0−1
World of Tanks	30−35 +386%	7−8 −386%

1440p
Ultra Preset

Battlefield 5	7−8 +600%	1−2 −600%
Counter-Strike 2	4−5	0−1
Cyberpunk 2077	5−6 +400%	1−2 −400%
Far Cry 5	10−11 +400%	2−3 −400%
Forza Horizon 4	7−8 +600%	1−2 −600%
Forza Horizon 5	6−7 +500%	1−2 −500%
Metro Exodus	3−4	0−1
The Witcher 3: Wild Hunt	8−9 +700%	1−2 −700%
Valorant	12−14 +550%	2−3 −550%

4K
High Preset

Counter-Strike 2	10−12 +450%	2−3 −450%
Dota 2	16−18 +467%	3−4 −467%
Grand Theft Auto V	16−18 +433%	3−4 −433%
Metro Exodus	0−1	0−1
PLAYERUNKNOWN'S BATTLEGROUNDS	14−16 +367%	3−4 −367%
Red Dead Redemption 2	3−4	0−1
The Witcher 3: Wild Hunt	16−18 +433%	3−4 −433%

4K
Ultra Preset

Battlefield 5	4−5	0−1
Counter-Strike 2	10−12 +450%	2−3 −450%
Cyberpunk 2077	2−3	0−1
Dota 2	16−18 +467%	3−4 −467%
Far Cry 5	5−6 +400%	1−2 −400%
Fortnite	4−5	0−1
Forza Horizon 4	4−5	0−1
Forza Horizon 5	2−3	0−1
Valorant	4−5	0−1

This is how Iris Pro Graphics 580 and GT 640M Mac Edition compete in popular games:

Iris Pro Graphics 580 is 375% faster in 1080p

Pros & cons summary

Performance score	4.61	1.01
Recency	1 September 2015	3 February 2013
Maximum RAM amount	64 GB	512 MB
Chip lithography	14 nm	28 nm
Power consumption (TDP)	15 Watt	32 Watt

Iris Pro Graphics 580 has a 356.4% higher aggregate performance score, an age advantage of 2 years, a 12700% higher maximum VRAM amount, a 100% more advanced lithography process, and 113.3% lower power consumption.

The Iris Pro Graphics 580 is our recommended choice as it beats the GeForce GT 640M Mac Edition in performance tests.

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