Technical data of the Sapphire HD 7750 Ultimate
The Sapphire HD 7750 Ultimate has the original clock rates of the normal card in the reference design and thus also the same performance and consumption data.
Radeon HD 7770 | Sapphire HD 7750 Ultimate | Radeon HD 6850 | Radeon HD 5770 | |
---|---|---|---|---|
Stream processors | 640 | 512 |
960 | 800 |
Texture units | 40 | 32 |
48 | 40 |
ROPs | 16 | 16 |
32 | 16 |
GPU clock | 1000 MHz | 800 MHz | 775 MHz | 850 MHz |
Texture fill rate | 40 Gtex/s | 25.6 Gtex/s |
37.2 Gtex/s | 49.4 Gtex/s |
Memory clock | 1125 MHz | 1125 MHz | 1000 MHz | 1200 MHz |
Storage connection | 128-bit | 128-bit | 256-bit | 128-bit |
Memory throughput | 72 GB/s | 72 GB/s |
128 GB/s | 76.8 GB/s |
Graphics memory | 1 GB GDDR5 | 1 GB GDDR5 |
1 GB GDDR5 | 1 GB GDDR5 |
The size | 123 mm2 | 123 mm2 |
255 mm2 | 166 mm2 |
Transistors (billions) | 1.5 | 1.5 |
1.7 | 1.04 |
Structure width | 28 nm | 28 nm | 40 nm | 40 nm |
Power connections | 1 x 6-pin | None | 1 x 6-pin | 1 x 6-pin |
max. power consumption | 80 W | 55 W |
127 W | 108 W |
PCI Express | 3.0 | 3.0 |
2.0 | 2.0 |
Price | 159 € (RRP) | 119 € (subject to change) |
~120 € (street) | ~100 € (street) |
other data
Dimensions | Manual measurement in cm |
---|---|
Length | From slot bezel inside to end of cooling body: 19.3 cm |
Height | From bottom edge PCB (PCIe connectors) to top edge cooler (center bezel): 12.5 cm From top edge PCIe slot to top edge cooler (center bezel): 12 cm |
Depth | From top edge PCB front to thickest cooler point front: 3.4 cm From top edge PCB rear to thickest cooler point rear: 1.5 cm |
The GPU-Z screenshot proves the technical data when used in the test system. It is interesting that the card can be overclocked almost to the same extent as the actively cooled card, but then some points have to be considered. But more about that later.
Let’s take another look at the cooling solution with heatpipes and heatsink. We also measured the temperature distribution in the test and then determine the respective temperature values of specific measuring points on the surface using an IR thermometer in the stress test.
The cooler’s bent fins also cover part of the back, you should allow for at least 2.5 cm of depth.
The heatpipes are nickel-plated and offer quite an appealing look, which incidentally also applies to the entire cooler.
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