2020 iMac 5K 8-core versus 2017 iMac Pro 5K 8-core
August 15th, 2020 by rob-ART morgan, mad scientist
August 28th - Added all 10-core tests thanks to Cantu and Gregg.
Can the 2020 iMac 5K 8-core keep up with the 2017 iMac Pro 5K 8-core? And what about the 10-core iMac?
2020 iMac 5K 10-core = 2020 iMac 5K with 3.6GHz 10-core Core i9 CPU, 128GB 2666MHz DDR4 memory, Radeon Pro 5700 XT (16GB GDDR6) GPU
2020 iMac 5K 8-core 128G = 2020 iMac 5K with 3.8GHz 8-core Core i7 CPU, 128GB 2666MHz DDR4 memory, Radeon Pro 5500 XT (8GB GDDR6) GPU
2020 iMac 5K 8-core 32G = 2020 iMac 5K with 3.8GHz 8-core Core i7 CPU, 32GB 2666MHz DDR4 memory, Radeon Pro 5500 XT (8GB GDDR6) GPU
2017 iMac Pro 8-core = 2017 iMac Pro 5K with 3.2GHz 8-core Xeon W-2140B CPU, 32GB 2666MHz DDR4 ECC memory, Radeon Pro Vega 64 (16GB HBM2) GPU
Cinebench 20 - Multi-Core CPU test
(HIGHER Score = FASTER)
Geekbench 5.2.3 - Multi-Core CPU test
(HIGHER Score = FASTER)
DaVinci Resolve 16
Looping Playback of Noise Reduction Node. (HIGHER FPS = FASTER)
Aztec High Tier 1440p OFFscreen. (HIGHER FPS = FASTER)
4K High Quality Metal Benchmark. (HIGHER FPS = FASTER)
TW: Warhammer II
Skaven built-in Metal benchmark. (HIGHER FPS = FASTER)
Shadow of the Tomb Raider
Built-in Metal benchmark. (HIGHER FPS = FASTER)
WHAT DID WE LEARN?
The 2020 iMac 5K 8-core beat the 2017 iMac Pro 5K 8-core running the Cinebench Multi-Core CPU test.
In our initial Geekbench CPU posting, the 2020 iMac 5K 8-core with 32GB of RAM scored 7321. When we moved the second 16GB module to slot 3, the score jumped to 8924 -- which tells us that it triggered dual channel mode. So that result pushes it ahead of the 2017 iMac Pro 8-core.
The 8-core 2017 iMac Pro 5K 'won' all the GPU benchmarks compared to the 8-core 2020 iMac 5K.
UPDATE: As of August 28th, we added all the results for 10-core 2020 iMac 5K which, as you can see, beats both the 8-core 2020 iMac 5K and the 8-core 2017 iMac Pro. (Thanks go to Cantu and Gregg.)
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