PowerColor Launches Single-Slot Radeon HD 7750 4GB Video Card

Traditional AMD add-in-board (AIB) partner PowerColor has just launched no less than three new video cards featuring single-slot cooling systems. The cards are all AMD Radeon HD 7750 models but the memory chips used for the video buffer are not what we were expecting.

We reported here on Gigabyte’s similar HD 7750 video card that unfortunately sports DDR3 memory chips, and PowerColor’s new models are all using exactly the same memory type.

The most noticeable product is the PowerColor HD7750 4GB DDR3 (AX7750 2GBK3-H) that has an impressive memory buffer, but the GPU is clocked at only 800 MHz while the DDR3 memory runs at an effective 1600 MHz.

There are not many applications that will really enjoy and exhibit sensible increased performance due to the large 4GB memory buffer, but it’s clear that all applications will suffer from the lack of memory and GPU speed.

The cards are built on AMD’s “Cape Verde” graphics processing unit that comes with a very small 123-square millimeter die size containing 1.5 billion transistors.

The default GPU speed is 800 MHz when working in full load 3D mode. In 2D mode, the frequency of the GPU will drop to a low 300 MHz.

The memory and the GPU work on a tight 128 bit BUS, so playing games with very high resolutions will be a little tricky, and this also explains why many budget users might be tempted to overclock their card.

PowerColor’s cards will certainly have difficulties in attaining a high GPU overclock, as the cooling system is compact and rather modest.

The “Cape Verde XT” GPU is part of AMD’s GCN architecture and comes with much improved GPU compute performance.

The GPU has 512 unified shader processors, 32 texturing units and 16 ROPs.

Compared with the AMD Radeon HD 7770 GHz edition, this is a cut-down “Cape Verde” GPU, with two of its 10 CUs (compute units) disabled and a 20% lower clock speed, while the DDR3 memory will further reduce its performance.

The other two cards feature exactly the same specs except the fact that one comes with 1GB of DDR3 video memory buffer while the other has 2GB.

Via: PowerColor Launches Single-Slot Radeon HD 7750 4GB Video Card