Radeon RX 6600 vs HD 6770M Mac Edition

Primary details

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

Place in the rankingnot rated113
Place by popularitynot in top-10013
Cost-effectiveness evaluationno data67.39
Power efficiencyno data20.42
ArchitectureTeraScale 2 (2009−2015)RDNA 2.0 (2020−2024)
GPU code nameWhistlerNavi 23
Market segmentLaptopDesktop
Release date28 January 2011 (13 years ago)13 October 2021 (3 years ago)
Launch price (MSRP)no data$329

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores4801792
Core clock speed725 MHz1626 MHz
Boost clock speedno data2491 MHz
Number of transistors716 million11,060 million
Manufacturing process technology40 nm7 nm
Power consumption (TDP)35 Watt132 Watt
Texture fill rate17.40279.0
Floating-point processing power0.696 TFLOPS8.928 TFLOPS
ROPs864
TMUs24112
Ray Tracing Coresno data28

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).

InterfaceMXM-A (3.0)PCIe 4.0 x8
Lengthno data190 mm
Widthno data2-slot
Supplementary power connectorsno data1x 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 amount512 MB8 GB
Memory bus width128 Bit128 Bit
Memory clock speed900 MHz1750 MHz
Memory bandwidth57.6 GB/s224.0 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, 3x DisplayPort
HDMI-+

API compatibility

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

DirectX11.2 (11_0)12.0 Ultimate (12_2)
Shader Model5.06.5
OpenGL4.44.6
OpenCL1.22.1
VulkanN/A1.2

Pros & cons summary


Recency 28 January 2011 13 October 2021
Maximum RAM amount 512 MB 8 GB
Chip lithography 40 nm 7 nm
Power consumption (TDP) 35 Watt 132 Watt

HD 6770M Mac Edition has 277.1% lower power consumption.

RX 6600, on the other hand, has an age advantage of 10 years, a 1500% higher maximum VRAM amount, and a 471.4% more advanced lithography process.

We couldn't decide between Radeon HD 6770M Mac Edition and Radeon RX 6600. We've got no test results to judge.

Be aware that Radeon HD 6770M Mac Edition is a notebook card while Radeon RX 6600 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.


AMD Radeon HD 6770M Mac Edition
Radeon HD 6770M Mac Edition
AMD Radeon RX 6600
Radeon RX 6600

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.


2.4 12 votes

Rate Radeon HD 6770M Mac Edition on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.3 9743 votes

Rate Radeon RX 6600 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.