Sapphire Radeon Dual-X 280 3GB Review


The majority of AMD’s “Volcanic Islands” graphics cards have been comprised of rebadged hardware from the previous generation, sans only the R9 290 and R9 290x. Essentially, the graphics cards in the series just got a new name and in some cases a speed bump. The latest graphics card to receive the rebadging treatment is the Radeon R9 280, which other than an 8 MHz higher clock frequency is identical to the retired Radeon 7950 Boost.

Unlike many other graphics cards in the series, AMD decided to soft-launch the R9 280, so you won’t find a reference design on the market, rather various distinct models from all the standard players, such as the Sapphire’s offering we were able to get our hands on. The Sapphire model we are looking at is part of their Dual-X series, which features a large heatsink that incorporates 4 heatpipes and a duo of 80mm fans. The Sapphire model also comes with a custom blue PCB and it sports a dual BIOS toggle switch that allows the card to switch between standard and UEFI BIOS.

Sapphire-Radeon-280-Main

Since the AMD Radeon R9 280 is based on the same Tahiti Pro graphics processor the silicon features 28 Compute Units, 1792 Streaming Processors and all 32 ROPs are active. The Tahiti architecture also includes six 64-bit memory controllers, giving it a 384-bit bus. Like the 7950 before it, AMD has also outfitted the card with 3GB of 5GHz GDDR5 memory, which with the 384-bit bus equates to a peak memory bandwidth of 240GB/s.

Sapphire-Radeon-280-GCN

Price wise, at $299, the AMD Radeon R9 280 falls just between the high-end 280x and the mid-range R9 270x. At this price the 280 gives gamers the option of high-end performance without the premium, but it also puts it in a range where it has to compete with the likes of the NVIDIA GTX 770.

AMD Radeon 200 Series Specification Comparison
Model AMD Radeon R9 280 AMD Radeon R9 280X AMD Radeon R9 270X AMD Radeon R7 260X
Stream Processors 1792 2048 1280 896
Texture Units 128 128 80 56
ROPs 32 32 32 16
Core Clock 850MHz 850MHz 1000MHz 1000MHz?
Boost Clock 933MHz 1000MHz 1050MHz 1100MHz
Memory Clock 5GHz GDDR5 6GHz GDDR5 5.6GHz GDDR5 6.5GHz GDDR5
Memory Bus Width 384-bit 384-bit 256-bit 128-bit
VRAM 3GB 3GB 2GB 2GB
FP64 1/4 1/4 1/16 1/16
TrueAudio N N N Y
Transistor Count 4.31B 4.31B 2.8B 2.08B
Typical Board Power 250W 250W 180W 115W
Manufacturing Process TSMC 28nm TSMC 28nm TSMC 28nm TSMC 28nm
Architecture GCN 1.0 GCN 1.0 GCN 1.0 GCN 1.1*
GPU Tahiti Tahiti Pitcairn Bonaire
Launch Date 10/11/13 10/11/13 10/11/13 10/11/13
Launch Price $299 $399 $199 $139