GeForce GTX 660 Ti vs Mobility Radeon HD 4850

When comparing GeForce GTX 660 Ti and Mobility Radeon HD 4850, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GTX 660 Ti and Mobility Radeon HD 4850 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Mobility Radeon HD 4850 is a Laptop Graphics Card

Note: Mobility Radeon HD 4850 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 Mobility Radeon HD 4850 here:

Main Specs

  GeForce GTX 660 Ti Mobility Radeon HD 4850
Power consumption (TDP) 150 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors Two 6-pin
Memory type GDDR5 GDDR3
Maximum RAM amount 2 GB 1 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • GeForce GTX 660 Ti is connected by PCIe 3.0 x16, and Mobility Radeon HD 4850 uses PCIe 2.0 x16 interface.
  • GeForce GTX 660 Ti has 1 GB more memory, than Mobility Radeon HD 4850.
  • GeForce GTX 660 Ti is used in Desktops, and Mobility Radeon HD 4850 - in Laptops.
  • GeForce GTX 660 Ti is build with Kepler architecture, and Mobility Radeon HD 4850 - with Terascale 1.
  • Core clock speed of GeForce GTX 660 Ti is 415 MHz higher, than Mobility Radeon HD 4850.
  • GeForce GTX 660 Ti is manufactured by 28 nm process technology, and Mobility Radeon HD 4850 - by 55 nm process technology.
  • Memory clock speed of Mobility Radeon HD 4850 is 844 MHz higher, than GeForce GTX 660 Ti.

Game benchmarks

high / 1080p 21−24 3−4
ultra / 1080p 12−14 1−2
QHD / 1440p 8−9 0−1
4K / 2160p 5−6
low / 720p 40−45 14−16
medium / 1080p 27−30 5−6
The average gaming FPS of GeForce GTX 660 Ti in Assassin's Creed Odyssey is 333% more, than Mobility Radeon HD 4850.

Full Specs

  GeForce GTX 660 Ti Mobility Radeon HD 4850
Architecture Kepler Terascale 1
Code name GK104 M98
Type Desktop Laptop
Release date 16 August 2012 9 January 2009
Pipelines 1344 800
Core clock speed 915 MHz 500 MHz
Boost Clock 980 MHz
Transistor count 3,540 million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 102.5 billion/sec 20.00
Floating-point performance 2,459.5 gflops 800.0 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 256 Bit
Memory clock speed 6.0 GB/s 850 MHz
Memory bandwidth 144.2 GB/s 54.4 GB/s
Shared memory - -
DirectX 12 (11_0) 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.3 3.3
OpenCL 1.2 1.1
Vulkan 1.1.126 N/A
CUDA +
CUDA cores 1344
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
3D Gaming +
3D Vision +
Bitcoin / BTC (SHA256) 99 Mh/s
Laptop size large
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