HIS Radeon R9 390 & 380

Back when the Radeon R9 290X and R9 290 were released over a year and a half ago now, the R9 290 was by far the best buy as it was priced well-nigh 30% lower but was just 5% slower. Today the HIS R9 290 iPower IceQ 10² OC 4GB costs just $250 while the R9 290X is $300. With the former being more than 15% cheaper, the gap has airtight but the R9 290 remains the amend value selection.

Information technology looks equally though this trend will exist repeated with the R9 390 and R9 390X as the vanilla 390 should be priced 15% cheaper while on paper it tin can't be more than 9% slower and volition likely exist similar to the 5% we saw when comparing the R9 290X and R9 290.

In fact, while the R9 290X was clocked slightly college than the R9 290 this isn't the case with the R9 390. Both the R9 390X and R9 390 characteristic the exact same core and retentiveness frequencies with the only difference existence the cadre configuration.

The R9 390 is armed with 2560 SPUs and 160 TAUs, 9% fewer than the 390X while information technology features the same 64 ROPs. Compared to the original HD 7970, the R9 390 has 25% more SPUs and TAUs forth with 100% more than ROPs.

The HIS R9 390 IceQ 10² OC 8GB features the exact same IceQ Ten² cooler constitute on the 390X version nosotros merely looked at so we won't become into particular again. Additionally, the carte du jour carries the aforementioned PCIe power connector configuration and the same I/O console connectivity which includes two DVI-D outputs along with just a single DisplayPort and HDMI output.

HIS Radeon R9 380

The R9 380 is a rehash of the R9 285 which means information technology'south based on the latest Graphics Cadre Side by side architecture. At its roots you volition find a graphics card that is almost three years old now (the Hd 7950).

Like the Hard disk 7950, R9 280 and R9 285 before it, the R9 380 features 1792 SPUs, 112 TAUs and 32 ROPs, the just real changes that impact operation have been made to the clock speeds.

For the R9 380 the clock speed has been set at 1000MHz, ix% faster than the R9 285, 21% college than the R9 280 and 18% higher than the 7950. The GDDR5 retention frequency has been set at 1375MHz (v.5Gbps), the aforementioned frequency as the R9 285 which is higher than the 1250MHz (five.0Gbps) that the R9 280 and HD 7950 ran at.

However, when looking at its retentivity subsystem nosotros find that the R9 380 has the same critical flaw as the R9 285: a 256-flake memory charabanc. In comparison, the R9 280 and 7950 both featured a wider 384-bit memory bus and 3GB frame buffer. The 256-chip wide retention ways the default memory chapters has also been downgraded to just 2GB.

While the memory capacity shouldn't be crusade for warning, the 27% reduction in available memory bandwidth is. Although the memory is clocked 10% higher on the R9 380, it's going to exist much slower than the R9 280 when comparing bandwidth operation.

On the bright side, due to its college core operating frequency, the R9 380 boasts college fill rates and meliorate compute performance. Withal, if you were to overclock the R9 280 to match the R9 380 you should be rewarded with ameliorate performance.

Again we find the IceQ X² cooler in use, though the design is unlike than the implementation of the bigger R9 390X and 390 cards. This time the cooler uses a pair of slightly smaller 86mm dual axial fans which are connected straight to the heatsink.

The heatink measures 200 x lxxx x 30mm and features a massive 115 x 94mm copper base. Connected to that base are five 6mm heatpipes, which are designed to quickly extract heat from the copper base and move it through the big array of fins.

To feed the bill of fare enough juice HIS includes dual six-pin PCI Express ability connectors, which is the aforementioned configuration used by the AMD reference card. This is the aforementioned setup used past the R9 270X and R9 280 for example.