Iris Plus Graphics 640 vs Radeon HD 4850 X2

Find out if it is worth upgrading your current GPU setup by comparing Iris Plus Graphics 640 and Radeon HD 4850 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 640 and Radeon HD 4850 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.

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 4850 X2
Power consumption (TDP) 15 Watt 250 Watt
Interface PCIe 3.0 x1 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type DDR3L/LPDDR3/DDR4 GDDR3
Maximum RAM amount 32 GB 512 MB
Display Connectors No outputs 4x DVI, 1x S-Video
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  • Radeon HD 4850 X2 has 1566% more power consumption, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 is connected by PCIe 3.0 x1, and Radeon HD 4850 X2 uses PCIe 2.0 x16 interface.
  • Radeon HD 4850 X2 has 480 GB more memory, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 is used in Laptops, and Radeon HD 4850 X2 - in Desktops.
  • Iris Plus Graphics 640 is build with Gen. 9.5 Kaby Lake architecture, and Radeon HD 4850 X2 - with TeraScale.
  • Core clock speed of Radeon HD 4850 X2 is 325 MHz higher, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 is manufactured by 14 nm process technology, and Radeon HD 4850 X2 - by 55 nm process technology.

Game benchmarks

high / 1080p 6−7 3−4
ultra / 1080p 4−5 2−3
QHD / 1440p 0−1 0−1
low / 720p 16−18 14−16
medium / 1080p 8−9 5−6
The average gaming FPS of Iris Plus Graphics 640 in Assassin's Creed Odyssey is 50% more, than Radeon HD 4850 X2.

Full Specs

  Iris Plus Graphics 640 Radeon HD 4850 X2
Architecture Gen. 9.5 Kaby Lake TeraScale
Code name Kaby Lake GT3e R700
Type Laptop Desktop
Release date 3 January 2017 7 November 2008
Pipelines 48 800
Core clock speed 300 MHz 625 MHz
Boost Clock 1050 MHz
Transistor count 189 million 956 million
Manufacturing process technology 14 nm 55 nm
Texture fill rate 52.80 25.00
Floating-point performance 2x 1,000.0 gflops
Length 267 mm
Memory bus width 64/128 Bit 256 Bit
Memory clock speed 1990 MHz
Memory bandwidth 63.68 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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