Radeon RX 6900 vs HD 7950M

Primary details

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

Place in the rankingnot rated22
Place by popularitynot in top-100not in top-100
Power efficiencyno data18.66
ArchitectureGCN 1.0 (2011−2020)RDNA 2.0 (2020−2024)
GPU code nameWimbledonNavi 21
Market segmentLaptopDesktop
Release date24 April 2012 (12 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 cores12804608
Core clock speed700 MHzno data
Boost clock speedno data2105 MHz
Number of transistors2,800 million23,000 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)75 Watt255 Watt
Texture fill rate56.00606.2
Floating-point processing power1.792 TFLOPS19.4 TFLOPS
ROPs3264
TMUs80288

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 sizelargeno data
InterfaceMXM-B (3.0)PCIe 4.0 x16
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 typeGDDR5GDDR6
Maximum RAM amount2 GB16 GB
Memory bus width256 Bit256 Bit
Memory clock speed1000 MHz16 GB/s
Memory bandwidth128.0 GB/s512.0 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, 2x DisplayPort, 1x USB Type-C
HDMI-+

API compatibility

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

DirectX12 (11_1)12 Ultimate (12_2)
Shader Model5.16.5
OpenGL4.64.6
OpenCL1.22.0
Vulkan1.2.1311.2

Pros & cons summary


Recency 24 April 2012 28 October 2020
Maximum RAM amount 2 GB 16 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 75 Watt 255 Watt

HD 7950M has 240% lower power consumption.

RX 6900, on the other hand, has an age advantage of 8 years, a 700% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between Radeon HD 7950M and Radeon RX 6900. We've got no test results to judge.

Be aware that Radeon HD 7950M is a notebook card while Radeon RX 6900 is a desktop one.


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

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AMD Radeon HD 7950M
Radeon HD 7950M
AMD Radeon RX 6900
Radeon RX 6900

Comparisons with similar GPUs

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Community ratings

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5 2 votes

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3.8 82 votes

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Questions & comments

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