Iris Plus Graphics 645 vs Radeon HD 4870 X2
Find out if it is worth upgrading your current GPU setup by comparing Iris Plus Graphics 645 and Radeon HD 4870 X2. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Iris Plus Graphics 645 and Radeon HD 4870 X2. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
Radeon HD 4870 X2
Iris Plus Graphics 645 is a Laptop Graphics Card
Note: Iris Plus Graphics 645 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 645 here:
Main Specs
Iris Plus Graphics 645 | Radeon HD 4870 X2 | |
Power consumption (TDP) | 15 Watt | 286 Watt |
Interface | PCIe 3.0 x1 | PCIe 2.0 x16 |
Supplementary power connectors | 1x 6-pin + 1x 8-pin | |
Memory type | DDR3/DDR4 | GDDR5 |
Maximum RAM amount | 1 GB | |
Display Connectors | No outputs | 2x DVI, 1x S-Video |
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- Radeon HD 4870 X2 has 1806% more power consumption, than Iris Plus Graphics 645.
- Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon HD 4870 X2 uses PCIe 2.0 x16 interface.
- Iris Plus Graphics 645 is used in Laptops, and Radeon HD 4870 X2 - in Desktops.
- Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon HD 4870 X2 - with TeraScale.
- Core clock speed of Radeon HD 4870 X2 is 400 MHz higher, than Iris Plus Graphics 645.
- Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon HD 4870 X2 - by 55 nm process technology.
Game benchmarks
high / 1080p | 4−5 | 3−4 |
ultra / 1080p | 2−3 | 1−2 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 12−14 | 14−16 |
medium / 1080p | 5−6 | 6−7 |
Iris Plus Graphics 645 and Radeon HD 4870 X2 have the same average FPS in Assassin's Creed Odyssey. | ||
high / 1080p | − | 8−9 |
ultra / 1080p | 7−8 | 6−7 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 16−18 | 21−24 |
medium / 1080p | 8−9 | 9−10 |
The average gaming FPS of Radeon HD 4870 X2 in Battlefield 5 is 9% more, than Iris Plus Graphics 645. | ||
low / 768p | 45−50 | 45−50 |
high / 1080p | 45−50 | 40−45 |
QHD / 1440p | 0−1 | 0−1 |
The average gaming FPS of Iris Plus Graphics 645 in Call of Duty: Warzone is 4% more, than Radeon HD 4870 X2. | ||
low / 768p | 100−110 | 130−140 |
medium / 768p | 80−85 | 100−110 |
ultra / 1080p | 35−40 | 50−55 |
QHD / 1440p | 24−27 | 24−27 |
high / 768p | 60−65 | 75−80 |
The average gaming FPS of Radeon HD 4870 X2 in Counter-Strike: Global Offensive is 27% more, than Iris Plus Graphics 645. | ||
low / 768p | 55−60 | 70−75 |
ultra / 1080p | 12−14 | 21−24 |
medium / 1080p | 45−50 | 40−45 |
The average gaming FPS of Radeon HD 4870 X2 in Cyberpunk 2077 is 15% more, than Iris Plus Graphics 645. | ||
low / 768p | 65−70 | 75−80 |
medium / 768p | 45−50 | 55−60 |
ultra / 1080p | 21−24 | 30−35 |
The average gaming FPS of Radeon HD 4870 X2 in Dota 2 is 22% more, than Iris Plus Graphics 645. | ||
high / 1080p | 5−6 | 4−5 |
ultra / 1080p | 5−6 | 4−5 |
4K / 2160p | 3−4 | 1−2 |
low / 720p | 12−14 | 14−16 |
medium / 1080p | 5−6 | 6−7 |
Iris Plus Graphics 645 and Radeon HD 4870 X2 have the same average FPS in Far Cry 5. | ||
high / 1080p | 12−14 | 12−14 |
ultra / 1080p | 8−9 | 7−8 |
QHD / 1440p | − | 4−5 |
low / 720p | 45−50 | 60−65 |
medium / 1080p | 12−14 | 18−20 |
The average gaming FPS of Radeon HD 4870 X2 in Fortnite is 25% more, than Iris Plus Graphics 645. | ||
high / 1080p | 8−9 | 8−9 |
ultra / 1080p | − | 7−8 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 16−18 | 21−24 |
medium / 1080p | 9−10 | 10−11 |
The average gaming FPS of Radeon HD 4870 X2 in Forza Horizon 4 is 18% more, than Iris Plus Graphics 645. | ||
low / 768p | 40−45 | 50−55 |
medium / 768p | 35−40 | − |
high / 1080p | 7−8 | 10−11 |
ultra / 1080p | 5−6 | 4−5 |
QHD / 1440p | 0−1 | 0−1 |
medium / 720p | − | 40−45 |
The average gaming FPS of Radeon HD 4870 X2 in Grand Theft Auto V is 22% more, than Iris Plus Graphics 645. | ||
high / 1080p | 3−4 | 2−3 |
ultra / 1080p | 2−3 | 0−1 |
4K / 2160p | 0−1 | 0−1 |
low / 720p | 7−8 | 9−10 |
medium / 1080p | 4−5 | 4−5 |
Iris Plus Graphics 645 and Radeon HD 4870 X2 have the same average FPS in Metro Exodus. | ||
low / 768p | 85−90 | 85−90 |
high / 1080p | 80−85 | 70−75 |
ultra / 1080p | 70−75 | − |
The average gaming FPS of Iris Plus Graphics 645 in Minecraft is 6% more, than Radeon HD 4870 X2. | ||
high / 1080p | 16−18 | − |
ultra / 1080p | 14−16 | 12−14 |
low / 720p | 24−27 | 30−35 |
medium / 1080p | 16−18 | 14−16 |
The average gaming FPS of Radeon HD 4870 X2 in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than Iris Plus Graphics 645. | ||
high / 1080p | − | 7−8 |
ultra / 1080p | 7−8 | 4−5 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 7−8 | 8−9 |
medium / 1080p | − | 8−9 |
The average gaming FPS of Iris Plus Graphics 645 in Red Dead Redemption 2 is 16% more, than Radeon HD 4870 X2. | ||
low / 768p | 16−18 | 20−22 |
medium / 768p | 12−14 | 12−14 |
high / 1080p | 6−7 | 7−8 |
ultra / 1080p | 5−6 | 5−6 |
4K / 2160p | − | 1−2 |
The average gaming FPS of Radeon HD 4870 X2 in The Witcher 3: Wild Hunt is 10% more, than Iris Plus Graphics 645. | ||
low / 768p | 80−85 | 75−80 |
medium / 768p | 35−40 | 40−45 |
ultra / 1080p | 14−16 | 18−20 |
high / 768p | 30−33 | 30−35 |
The average gaming FPS of Radeon HD 4870 X2 in World of Tanks is 2% more, than Iris Plus Graphics 645. |
Full Specs
Iris Plus Graphics 645 | Radeon HD 4870 X2 | |
Architecture | Gen. 9.5 Coffee Lake | TeraScale |
Code name | Kaby Lake GT3e | R700 |
Type | Laptop | Desktop |
Release date | 10 July 2019 | 12 August 2008 |
Pipelines | 48 | 800 |
Core clock speed | 300 MHz | 700 MHz |
Boost Clock | 1150 MHz | |
Transistor count | 956 million | |
Manufacturing process technology | 14 nm | 55 nm |
Texture fill rate | 50.40 | 28.00 |
Floating-point performance | 2x 1,120.0 gflops | |
Length | 267 mm | |
Memory bus width | 256 Bit | |
Memory clock speed | 3600 MHz | |
Memory bandwidth | 115.2 GB/s | |
Shared memory | + | |
DirectX | 12 (12_1) | 10.1 (10_1) |
Shader Model | 6.4 | 4.1 |
OpenGL | 4.6 | 3.3 |
OpenCL | 2.1 | 1.1 |
Vulkan | 1.1.103 | N/A |
Quick Sync | + | |
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