Iris Plus Graphics 640 vs Radeon HD 7870 XT

If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 640 and Radeon HD 7870 XT, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Iris Plus Graphics 640 stacks up against Radeon HD 7870 XT, check out specs charts below.

Iris Plus Graphics 640 Check Price

Radeon HD 7870 XT

Iris Plus Graphics 640 is a Laptop Graphics Card

Note: Iris Plus Graphics 640 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Iris Plus Graphics 640 here:

Iris Plus Graphics 640 Laptops

Main Specs

	Iris Plus Graphics 640	Radeon HD 7870 XT
Power consumption (TDP)	15 Watt	185 Watt
Interface	PCIe 3.0 x1	PCIe 3.0 x16
Supplementary power connectors		2x 6-pin
Memory type	DDR3L/LPDDR3/DDR4	GDDR5
Maximum RAM amount	32 GB	2 GB
Display Connectors	No outputs	1x DVI, 1x HDMI, 2x mini-DisplayPort
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Radeon HD 7870 XT has 1133% more power consumption, than Iris Plus Graphics 640.
Iris Plus Graphics 640 is connected by PCIe 3.0 x1, and Radeon HD 7870 XT uses PCIe 3.0 x16 interface.
Iris Plus Graphics 640 has 30 GB more memory, than Radeon HD 7870 XT.
Iris Plus Graphics 640 is used in Laptops, and Radeon HD 7870 XT - in Desktops.
Iris Plus Graphics 640 is build with Gen. 9.5 Kaby Lake architecture, and Radeon HD 7870 XT - with GCN 1.0.
Core clock speed of Radeon HD 7870 XT is 625 MHz higher, than Iris Plus Graphics 640.
Iris Plus Graphics 640 is manufactured by 14 nm process technology, and Radeon HD 7870 XT - by 28 nm process technology.

Game benchmarks


high / 1080p	6−7	35−40
ultra / 1080p	4−5	21−24
QHD / 1440p	0−1	16−18
4K / 2160p	−	10−11
low / 720p	16−18	60−65
medium / 1080p	8−9	40−45
The average gaming FPS of Radeon HD 7870 XT in Assassin's Creed Odyssey is 355% more, than Iris Plus Graphics 640.
high / 1080p	12−14	55−60
ultra / 1080p	10−11	45−50
QHD / 1440p	0−1	35−40
4K / 2160p	−	18−20
low / 720p	24−27	100−110
medium / 1080p	12−14	60−65
The average gaming FPS of Radeon HD 7870 XT in Battlefield 5 is 353% more, than Iris Plus Graphics 640.
low / 768p	45−50	50−55
high / 1080p	45−50	−
QHD / 1440p	0−1	0−1
The average gaming FPS of Radeon HD 7870 XT in Call of Duty: Warzone is 10% more, than Iris Plus Graphics 640.
low / 768p	130−140	250−260
medium / 768p	110−120	220−230
ultra / 1080p	50−55	180−190
QHD / 1440p	27−30	110−120
4K / 2160p	27−30	70−75
high / 768p	80−85	210−220
The average gaming FPS of Radeon HD 7870 XT in Counter-Strike: Global Offensive is 142% more, than Iris Plus Graphics 640.
low / 768p	55−60	60−65
ultra / 1080p	18−20	−
medium / 1080p	45−50	55−60
The average gaming FPS of Radeon HD 7870 XT in Cyberpunk 2077 is 15% more, than Iris Plus Graphics 640.
low / 768p	80−85	120−130
medium / 768p	55−60	110−120
ultra / 1080p	30−35	100−110
The average gaming FPS of Radeon HD 7870 XT in Dota 2 is 101% more, than Iris Plus Graphics 640.
high / 1080p	8−9	45−50
ultra / 1080p	7−8	40−45
QHD / 1440p	−	27−30
4K / 2160p	3−4	14−16
low / 720p	18−20	80−85
medium / 1080p	8−9	45−50
The average gaming FPS of Radeon HD 7870 XT in Far Cry 5 is 422% more, than Iris Plus Graphics 640.
high / 1080p	14−16	60−65
ultra / 1080p	10−11	45−50
QHD / 1440p	−	27−30
4K / 2160p	−	27−30
low / 720p	60−65	180−190
medium / 1080p	21−24	110−120
The average gaming FPS of Radeon HD 7870 XT in Fortnite is 277% more, than Iris Plus Graphics 640.
high / 1080p	12−14	60−65
ultra / 1080p	10−12	45−50
QHD / 1440p	1−2	30−35
4K / 2160p	−	24−27
low / 720p	24−27	100−110
medium / 1080p	14−16	65−70
The average gaming FPS of Radeon HD 7870 XT in Forza Horizon 4 is 384% more, than Iris Plus Graphics 640.
low / 768p	50−55	140−150
medium / 768p	45−50	120−130
high / 1080p	12−14	70−75
ultra / 1080p	6−7	30−35
QHD / 1440p	0−1	21−24
The average gaming FPS of Radeon HD 7870 XT in Grand Theft Auto V is 220% more, than Iris Plus Graphics 640.
high / 1080p	4−5	24−27
ultra / 1080p	3−4	20−22
QHD / 1440p	−	16−18
4K / 2160p	0−1	8−9
low / 720p	12−14	65−70
medium / 1080p	6−7	30−35
The average gaming FPS of Radeon HD 7870 XT in Metro Exodus is 500% more, than Iris Plus Graphics 640.
low / 768p	95−100	130−140
high / 1080p	90−95	−
ultra / 1080p	80−85	−
medium / 1080p	90−95	120−130
The average gaming FPS of Radeon HD 7870 XT in Minecraft is 36% more, than Iris Plus Graphics 640.
high / 1080p	16−18	−
ultra / 1080p	14−16	14−16
low / 720p	30−35	100−110
medium / 1080p	18−20	18−20
The average gaming FPS of Radeon HD 7870 XT in PLAYERUNKNOWN'S BATTLEGROUNDS is 109% more, than Iris Plus Graphics 640.
high / 1080p	−	24−27
ultra / 1080p	7−8	16−18
QHD / 1440p	0−1	10−11
4K / 2160p	−	7−8
low / 720p	12−14	65−70
medium / 1080p	10−12	35−40
The average gaming FPS of Radeon HD 7870 XT in Red Dead Redemption 2 is 300% more, than Iris Plus Graphics 640.
low / 768p	24−27	130−140
medium / 768p	16−18	85−90
high / 1080p	9−10	45−50
ultra / 1080p	6−7	24−27
4K / 2160p	6−7	16−18
The average gaming FPS of Radeon HD 7870 XT in The Witcher 3: Wild Hunt is 376% more, than Iris Plus Graphics 640.
low / 768p	85−90	90−95
medium / 768p	45−50	60−65
ultra / 1080p	18−20	50−55
high / 768p	35−40	60−65
The average gaming FPS of Radeon HD 7870 XT in World of Tanks is 42% more, than Iris Plus Graphics 640.

Full Specs

	Iris Plus Graphics 640	Radeon HD 7870 XT
Architecture	Gen. 9.5 Kaby Lake	GCN 1.0
Code name	Kaby Lake GT3e	Tahiti
Type	Laptop	Desktop
Release date	3 January 2017	19 November 2012
Pipelines	48	1536
Core clock speed	300 MHz	925 MHz
Boost Clock	1050 MHz	975 MHz
Transistor count	189 million	4,313 million
Manufacturing process technology	14 nm	28 nm
Texture fill rate	52.80	93.60
Floating-point performance		2,995 gflops
Length		267 mm
Memory bus width	64/128 Bit	256 Bit
Memory clock speed		6000 MHz
Memory bandwidth		192.0 GB/s
Shared memory	+
DirectX	12 (12_1)	12 (11_1)
Shader Model	6.4	5.1
OpenGL	4.6	4.6
OpenCL	2.1	1.2
Vulkan	1.1.103	1.2.131
Bitcoin / BTC (SHA256)		346 Mh/s
Ethereum / ETH (DaggerHashimoto)		14.5 Mh/s
Quick Sync	+
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Iris Plus Graphics 640 vs Radeon HD 7870 XT

Iris Plus Graphics 640 is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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