Radeon RX 6900 XTX vs ATI Mobility HD 3670

Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureTeraScale (2005−2013)RDNA 2.0 (2020−2024)
GPU code nameM86Navi 21
Market segmentLaptopDesktop
Release date7 January 2008 (16 years ago)28 October 2020 (4 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 cores1205120
Core clock speed680 MHz2075 MHz
Boost clock speedno data2435 MHz
Number of transistors378 million26,800 million
Manufacturing process technology55 nm7 nm
Power consumption (TDP)30 Watt330 Watt
Texture fill rate5.440779.2
Floating-point processing power0.1632 TFLOPS24.93 TFLOPS
ROPs4128
TMUs8320
Ray Tracing Coresno data80

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).

Laptop sizemedium sizedno data
InterfacePCIe 2.0 x16PCIe 4.0 x16
Lengthno data267 mm
Widthno data2-slot
Supplementary power connectorsno data2x 8-pin

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 typeGDDR3GDDR6
Maximum RAM amount256 MB16 GB
Memory bus width128 Bit256 Bit
Memory clock speed800 MHz2250 MHz
Memory bandwidth25.6 GB/s576.0 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 ConnectorsNo outputs1x HDMI 2.1, 2x DisplayPort 1.4a, 1x USB Type-C
HDMI-+

API compatibility

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

DirectX10.1 (10_1)12 Ultimate (12_2)
Shader Model4.16.7
OpenGL3.34.6
OpenCLN/A2.1
VulkanN/A1.3

Pros & cons summary


Recency 7 January 2008 28 October 2020
Maximum RAM amount 256 MB 16 GB
Chip lithography 55 nm 7 nm
Power consumption (TDP) 30 Watt 330 Watt

ATI Mobility HD 3670 has 1000% lower power consumption.

RX 6900 XTX, on the other hand, has an age advantage of 12 years, a 6300% higher maximum VRAM amount, and a 685.7% more advanced lithography process.

We couldn't decide between Mobility Radeon HD 3670 and Radeon RX 6900 XTX. We've got no test results to judge.

Be aware that Mobility Radeon HD 3670 is a notebook card while Radeon RX 6900 XTX is a desktop 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.


ATI Mobility Radeon HD 3670
Mobility Radeon HD 3670
AMD Radeon RX 6900 XTX
Radeon RX 6900 XTX

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.


2.3 21 vote

Rate Mobility Radeon HD 3670 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.2 123 votes

Rate Radeon RX 6900 XTX 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.