ATI Mobility Radeon X300 vs HD 6850 X2

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking565not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.79no data
ArchitectureTeraScale 2 (2009−2015)Rage 9 (2003−2006)
GPU code nameBartsM22
Market segmentDesktopLaptop
Release date19 September 2011 (13 years ago)1 November 2005 (19 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores9606
Core clock speed800 MHz350 MHz
Boost clock speedno data350 MHz
Number of transistors1,700 million107 million
Manufacturing process technology40 nm110 nm
Power consumption (TDP)254 Wattno data
Texture fill rate38.401.400
Floating-point processing power1.536 TFLOPSno data
ROPs324
TMUs484

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 2.0 x16PCIe 1.0 x16
Width2-slotno data
Supplementary power connectors2x 8-pinno data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5DDR
Maximum RAM amount2 GB128 MB
Memory bus width256 Bit64 Bit
Memory clock speed1050 MHz250 MHz
Memory bandwidth134.4 GB/s4 GB/s
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors2x DVI, 1x HDMI, 1x DisplayPortNo outputs
HDMI+-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX11.2 (11_0)9.0b
Shader Model5.0no data
OpenGL4.42.0
OpenCL1.2N/A
VulkanN/AN/A

Pros & cons summary


Recency 19 September 2011 1 November 2005
Maximum RAM amount 2 GB 128 MB
Chip lithography 40 nm 110 nm

HD 6850 X2 has an age advantage of 5 years, a 1500% higher maximum VRAM amount, and a 175% more advanced lithography process.

We couldn't decide between Radeon HD 6850 X2 and Mobility Radeon X300. We've got no test results to judge.

Be aware that Radeon HD 6850 X2 is a desktop card while Mobility Radeon X300 is a notebook one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


AMD Radeon HD 6850 X2
Radeon HD 6850 X2
ATI Mobility Radeon X300
Mobility Radeon X300

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.6 9 votes

Rate Radeon HD 6850 X2 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.7 9 votes

Rate Mobility Radeon X300 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.