Mobility Radeon HD 4870 X2 

Released January, 2009
  • 550 MHz
  • 2 GB GDDR5

Because realities are dictating that GPU vendors build smaller, more power efficient GPUs, and to scale performance overall, multi-GPU solutions need to be efficient and plentiful.
by Ryan-Shrout (Mar, 2016)
Then you could overclock your CPU, which would become the new bottleneck with the new GPU setup.

Features Key features of the Mobility Radeon HD 4870 X2

memory bandwidth Rate at which data can be read from or stored in onboard memory

Mobility Radeon HD 4870 X2
179.2 GB/s
GeForce GT 720M
12.8 GB/s
GeForce GTX 765M
64.1 GB/s

pixel rate Number of pixels a graphics card can render to the screen every second

Mobility Radeon HD 4870 X2
17.6 GPixel/s
GeForce GT 720M
2.5 GPixel/s
GeForce GTX 765M
12.75 GPixel/s

texture rate Speed at which a graphics card can perform texture mapping

Mobility Radeon HD 4870 X2
44 GTexel/s
GeForce GT 720M
10 GTexel/s
GeForce GTX 765M
51 GTexel/s

floating point performance How fast the gpu can crunch numbers

Mobility Radeon HD 4870 X2
1,760 GFLOPS
GeForce GT 720M
GeForce GTX 765M
1,224.2 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

Mobility Radeon HD 4870 X2

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

Mobility Radeon HD 4870 X2

In The News From around the web

AMD’s primary goal here is to get many millions of gamers VR-ready, though getting the enthusiasts “that last millisecond” is still a goal and it will happen from Radeon.
The “economics of the smaller die” are much better for AMD (and we assume NVIDIA) and by 2017-2019, this is the reality and will be how graphics performance will scale.

NVIDIA 344.65 Drivers and GeForce Experience

by Jarred Walton |
The holiday gaming deluge is in full effect, and I suspect we'll see quite a few more "Game Ready" driver updates between now and the new year.
This is really a great way of doing things on the part of NVIDIA, as users can download the driver and be ready to play as soon as the game unlocks on Steam.
I would go down the route of some CrossFire AMD Radeon HD 7950s myself, after using them for some testing, they're incredible pieces of hardware for the money.
Then you could overclock your CPU, which would become the new bottleneck with the new GPU setup.

Specifications Full list of technical specs


GPU brand ATI
GPU name M98
Market Laptop
Clock speed 550 MHz
Is dual GPU Yes
Reference card None

raw performance

Shading units 1,600
Texture mapping units 80
Render output processors 32
Compute units 20
Pixel rate 17.6 GPixel/s
Texture rate 44 GTexel/s
Floating-point performance 1,760 GFLOPS


Memory clock speed 700 MHz
Effective memory clock speed 2,800 MHz
Memory bus 512 bit
Memory 2,048 MB
Memory type GDDR5
Memory bandwidth 179.2 GB/s
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