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.
Radeon HD 7870 XT
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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:
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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