GeForce GTX 680MX vs Radeon HD 4850 X2

In this comparison between GeForce GTX 680MX and Radeon HD 4850 X2 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GTX 680MX will be the best choice, for others Radeon HD 4850 X2 will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 680MX is a Laptop Graphics Card

Note: GeForce GTX 680MX 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 GeForce GTX 680MX here:

Main Specs

  GeForce GTX 680MX Radeon HD 4850 X2
Power consumption (TDP) 122 Watt 250 Watt
Interface PCIe 2.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type GDDR5 GDDR3
Maximum RAM amount 2 GB 512 MB
Display Connectors 4x DVI, 1x S-Video
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  • Radeon HD 4850 X2 has 104% more power consumption, than GeForce GTX 680MX.
  • Radeon HD 4850 X2 has 510 GB more memory, than GeForce GTX 680MX.
  • GeForce GTX 680MX is used in Laptops, and Radeon HD 4850 X2 - in Desktops.
  • GeForce GTX 680MX is build with Kepler architecture, and Radeon HD 4850 X2 - with TeraScale.
  • Core clock speed of GeForce GTX 680MX is 95 MHz higher, than Radeon HD 4850 X2.
  • GeForce GTX 680MX is manufactured by 28 nm process technology, and Radeon HD 4850 X2 - by 55 nm process technology.
  • Memory clock speed of GeForce GTX 680MX is 510 MHz higher, than Radeon HD 4850 X2.

Game benchmarks

high / 1080p 21−24 3−4
ultra / 1080p 12−14 2−3
QHD / 1440p 7−8 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 680MX in Assassin's Creed Odyssey is 333% more, than Radeon HD 4850 X2.

Full Specs

  GeForce GTX 680MX Radeon HD 4850 X2
Architecture Kepler TeraScale
Code name R700
Type Laptop Desktop
Release date 23 October 2012 7 November 2008
Pipelines 1536 800
Core clock speed 720 MHz 625 MHz
Transistor count 3540 Million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 92.2 billion/sec 25.00
Floating-point performance 2x 1,000.0 gflops
Length 267 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 2500 MHz 1990 MHz
Memory bandwidth 160 GB/s 63.68 GB/s
Shared memory -
DirectX 12 API 10.1 (10_1)
Shader Model 4.1
OpenGL 4.5 3.3
OpenCL 1.1 1.1
Vulkan N/A
CUDA +
CUDA cores 1536
Bus support PCI Express 3.0
SLI options +
3D Vision +
Bitcoin / BTC (SHA256) 57 Mh/s
Laptop size large
Optimus +
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