PowerColor Radeon R9 390 PCS+ 8 GB Review 53

PowerColor Radeon R9 390 PCS+ 8 GB Review

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AMD's approach to new generations of graphics processors has been different for the past two generations. The Radeon R9 200 series initially saw the introduction of just one silicon, codenamed "Hawaii," which drove the company's previous flagship R9 290 series, while the rest of the lineup saw a cascading re-badging from the previous generation. AMD's previous generation flagship, the HD 7900 series, went on to become the performance-segment R9 280 series, and so on, and the performance-segment "Tonga" silicon was added afterward. The story is predictable even today.

With this generation, there is essentially one new silicon, the HBM-equipped "Fiji," which has been launched this week and will eventually drive up to five products from AMD. The previous-generation flagship silicon "Hawaii" now drives AMD's performance-segment products, the Radeon R9 390X and R9 390 Non-X we're reviewing today.

The Radeon R9 390 is based on the "Hawaii" silicon (now referred to as "Grenada" without any silicon changes) and features the same core-configuration as the R9 290. The standard memory amount has been doubled to 8 GB across the board and clock speeds see an increase from 950 MHz to 1000 MHz on the core and from 5.00 Gbps to 6.00 Gbps on the memory.

The PowerColor R9 390 PCS+ comes with a small core overclock of 10 MHz out of the box; its memory clock remains unchanged. As a cooling solution, a mighty triple slot, triple-fan cooler is used. Price-wise, the card is retailing with a slight $10 increase over the reference design.

Radeon R9 390 Market Segment Analysis
GTX 770
R9 280X
GTX 780
R9 290
R9 390
R9 390 PCS+
GTX 970
R9 290X
R9 390X
GTX 780 Ti
Shader Units1536204823042560256025601664281628162880
Graphics ProcessorGK104TahitiGK110HawaiiHawaiiHawaiiGM204HawaiiHawaiiGK110
Memory Size2048 MB3072 MB3072 MB4096 MB8192 MB8192 MB4096 MB4096 MB8192 MB3072 MB
Memory Bus Width256 bit384 bit384 bit512 bit512 bit512 bit256 bit512 bit512 bit384 bit
Core Clock1046 MHz+1000 MHz863 MHz+947 MHz1000 MHz1010 MHz1051 MHz+1000 MHz1050 MHz876 MHz+
Memory Clock1753 MHz1500 MHz1502 MHz1250 MHz1500 MHz1500 MHz1750 MHz1250 MHz1500 MHz1750 MHz
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