AMD introduced the Radeon M400 Series Mobility GPUs. What should we expect from new models?

AMD has released the partial specification of new Mobility GPUs, the lineup consist of Radeon R9 400 and Radeon R7 400 series mobility GPUs. The AMD Radeon 400 series is based on Polaris and Rebranded GPUs which will be part of the GCN 4.0 family. AMD’s Polaris architecture is manufactured on 14nm process node, so we can expect lower power consumption maintaining good performance.

AMD Quietly Introduced Radeon M400 Series Mobility GPUs 

AMD-Polaris

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Model CU Blocks Stream processors Video memory Memory clock
Radeon R9 M485X 32 2048 (?) 8 GB GDDR5 256-bit 5000 MHz
Radeon R9 M470X 14 896 (?) 4 GB GDDR5 128-bit 6000 MHz
Radeon R9 M470 12 768 (?) 4 GB GDDR5 128-bit 6000 MHz

Radeon R9 M400 series includes three models which will used in gaming laptops. The top model Radeon R9 M485X is based on AMD’s Antigua XT GPU with with 32 blocks CU and up to 8 GB of GDDR5 memory with 256-bit – the frequency of 1250 MHz (5000 MHz effective), so the bandwidth is 256 GB / s. Radeon R9 and R9 M470X M470 based on the 14 and 12 CU blocks, and the chip is equipped with up to 4 GB GDDR5 128-bit frequency of 1500 MHz (6000 MHz effective).

Model CU Blocks Stream processors Video memory Memory clock
Radeon R7 M465X 8 512 (?) 4 GB GDDR5 128-bit 4500 MHz
Radeon R7 M465 6 384 (?) 4 GB GDDR5 64/128-bit 4500 MHz
Radeon R7 M460 6 384 (?) 4 GB DDR3 64-bit 2000 MHz
Radeon R7 M445 4 256 (?) 4 GB GDDR5 64-bit 4000 MHz
Radeon R7 M440 4 256 (?) 4 GB DDR3 64-bit 2000 MHz

Radeon R7 M400 Series includes five models, for separate designation are versions with GDDR5 and DDR3. Radeon R7 M465X has a core of 8 blocks CU and 4 GB of memory GDDR5 128-bit – frequency here is 1125 MHz (4500 MHz effective). Radeon R7 M465 and R7 M460 are based on the same layout with 6 blocks CU, but have a different memory – in the first case, we can count on the 4 GB of GDDR5 memory, 64/128-bit 1150 MHz, and the second 4 GB of DDR3 memory, 64-bit 1000 MHz. The same is the case with Radeon R7 M445 and Radeon R7 M440, which use layout with 4 CU blocks and have 4 GB of GDDR5 memory

Model CU Blocks Stream processors Video memory Memory clock
Radeon R5 M435 5 320 (?) 4 GB GDDR5 64-bit 4000 MHz
Radeon R5 M430 5 320 (?) 4 GB DDR3 64-bit 2000 MHz
Radeon R5 M420 5 320 (?) 4 GB DDR3 64-bit 2000 MHz

In a series of Radeon R5 M400 we find three models. Radeon R5 M435, R5 M430 and R5 M420 are based on the same core with 5 blocks of computing, but differ in memory – in the first case, we can count on the 4 GB of GDDR5 memory 64-bit frequency of 1000 MHz, and the other two 4 GB DDR3 memory 64-bit 1000 MHz (both models probably vary more frequently layout).

On Computex 2016 we will see new gaming laptops equipped with Radeon M400 Series Mobility GPUs.