We can't be sure that Apple will present a new iMac at its developer conference on 22 June, but evidence is stacking up that suggests that it will do so. In fact, with 27in iMac models currently not shipping until after 3 July it looks like a new 27in iMac will arrive soon.

New Processors

We've looked through all the 10th generation desktop processors launched by Intel this quarter to see which would be the most likely contender for the new iMac (assuming it won't be the first Mac to ship with an ARM processor).

The current iMacs ship with the following processors:

  • 21.5in 2.3GHz dual-core 7th generation i5
  • 21.5in 3.6GHz quad-core 8th generation i3
  • 21.5in 3.0GHz six-core 8th generation i5
  • BTO 21.5in 3.2GHz six-core 9th generation i7
  • 27in 3.0GHz six-core 8th generation i5
  • 27in 3.1GHz six-core 8th generation i5
  • 27in 3.7GHz six-core 9th generation i5
  • BTO 27in 3.6GHz eight-core 9th generation i9

Corresponding processors can also be found in the 10th series in Intel's database. In contrast to the eighth series all processors support hyperthreading and turboboost. The i3 series has four cores, the i5 processors are equipped with six, and the i7 has eight cores. And the top i9 model has ten cores.

All processors support DDR4 memory chips, with the i7 and i9 using slightly faster clocked versions. They are compatible with a maximum of 128GB RAM. Apple uses a higher base clock in the previous iMac K processors, compared to the respective standard model, so we have also included this in the table.

These offer a significantly higher power consumption (TDP) than the older models at 125 watts (previously 65 watts). They can be clocked down to 95 watts, however, and would thus correspond to the K processors previously installed in terms of power consumption.

Name

Cores

Base clock

Turbo boost

Hyper threading

Cache

Storage type

Maximum memory

TDP

 

Core i3 10100

4th

3.60 GHz

4.30 GHz

Yes

6 MB

DDR4-2666

128 GB

65W

 

Core i3 10300

4th

3.70 GHz

4.40 GHz

Yes

8 MB

DDR4-2666

128 GB

65W

 

Core i3 10320

4th

3.80 GHz

4.60 GHz

Yes

8 MB

DDR4-2666

128 GB

65W

 

Core i5-10400

6

2.90 GHz

4.30 GHz

Yes

12 MB

DDR4-2666

128 GB

65W

 

Core i5-10500

6

3.10 GHz

4.50 GHz

Yes

12 MB

DDR4-2666

128 GB

65W

 

Core i5-10600

6

3.30 GHz

4.80 GHz

Yes

12 MB

DDR4-2666

128 GB

65W

 

Core i5-10600K

6

4.10 GHz

4.80 GHz

Yes

12 MB

DDR4-2666

128 GB

125W

 

Core i7-10700

8th

2.90 GHz

4.80 GHz

Yes

16 MB

DDR4-2933

128 GB

65W

 

Coer i7-10700K

8th

3.80 GHz

5.10 GHz

Yes

16 MB

DDR4-2933

128 GB

125W

 

Core i9-10900

10th

2.80 GHz

5.20 GHz

Yes

20 MB

DDR4-2933

128 GB

65W

 

Core i9-10900K

10th

3.70 GHz

5.30 GHz

Yes

20 MB

DDR4-2933

128 GB

125W

 

New Graphics

In addition to new processors we can expect new graphics processors. These are likely to be provided by AMD as usual. Currently iMacs feature the following graphics cards:

  • 21.5in Intel Iris Plus Graphics 640
  • 21.5in Radeon Pro 555X with 2GB of GDDR5 memory
  • 21.5in Radeon Pro 560X with 4GB of GDDR5 memory
  • BTO 21.5in Radeon Pro Vega 20 with 4GB of HBM2 memory
  • 27in Radeon Pro 570X with 4GB of GDDR5 memory
  • 27in Radeon Pro 575X with 4GB of GDDR5 memory
  • 27in Radeon Pro 580X with 8GB of GDDR5 memory
  • BTO 27in Radeon Pro Vega 48 with 8GB of HBM2 memory

These are the same graphics cards that were installed in the 15in MacBook Pro, so it follows that a new iMac could use the AMD 5000 series GPUs that feature in the 16in MacBook Pro.

16in MacBook Pro

Those are the following GPUS:

  • AMD Radeon Pro 5300M with 4GB of GDDR6 memory
  • AMD Radeon Pro 5500M with 4GB of GDDR6 memory
  • AMD Radeon Pro 5500M with 8GB of GDDR6 memory
  • AMD Radeon Pro 5600M with 8GB of HBM2 memory

These GPUs have the new RDNA architecture, support GDDR6 memory and are produced using the 7nm process.

New storage options

A new iMac should also mark the end of the Fusion Drive, Apple's construction of a small SSD and a hard drive. As with the Mac mini and MacBooks, an SSD with 256GB storage space will probably become the standard.

The T2 chip is also likely to find a place in the new iMac, so that all Macs will be equipped with this security chip.

New design?

Above all, there is speculation that the iMac should now be built with a thinner display frame. The rumour mill also says that there could be a model with a 23in display, but because of the thinner frame, it won't be larger than the previous 21.5in model.

Read all about the 2020 iMac here.

This article originally appeared on Macwelt. Translation by Karen Haslam.