Radeon Pro V620 vs ATI Mobility HD 4650

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Primary details

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

Place in the ranking1100not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.18no data
ArchitectureTeraScale (2005−2013)RDNA 2.0 (2020−2024)
GPU code nameM96Navi 21
Market segmentLaptopWorkstation
Release date9 January 2009 (15 years ago)4 November 2021 (2 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 cores3204608
Core clock speed500 MHz1825 MHz
Boost clock speedno data2200 MHz
Number of transistors514 million26,800 million
Manufacturing process technology55 nm7 nm
Power consumption (TDP)35 Watt300 Watt
Texture fill rate16.00633.6
Floating-point processing power0.32 TFLOPS20.28 TFLOPS
ROPs8128
TMUs32288
Ray Tracing Coresno data72

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 typeDDR2GDDR6
Maximum RAM amount512 MB32 GB
Memory bus width128 Bit256 Bit
Memory clock speed600 MHz2000 MHz
Memory bandwidth19.2 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 outputsNo outputs

API compatibility

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

DirectX10.1 (10_1)12 Ultimate (12_2)
Shader Model4.16.5
OpenGL3.34.6
OpenCL1.12.1
VulkanN/A1.2

Pros & cons summary


Recency 9 January 2009 4 November 2021
Maximum RAM amount 512 MB 32 GB
Chip lithography 55 nm 7 nm
Power consumption (TDP) 35 Watt 300 Watt

ATI Mobility HD 4650 has 757.1% lower power consumption.

Pro V620, 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 4650 and Radeon Pro V620. We've got no test results to judge.

Be aware that Mobility Radeon HD 4650 is a notebook card while Radeon Pro V620 is a workstation 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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ATI Mobility Radeon HD 4650
Mobility Radeon HD 4650
AMD Radeon Pro V620
Radeon Pro V620

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.


4 91 vote

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5 1 vote

Rate Radeon Pro V620 on a scale of 1 to 5:

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Questions & comments

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