Geforce Maxwell will double performance per watt

Nvidia will soon launch the first graphics cards with the architecture Maxwell, the successor to today’s Kepler. As usual, most things are already known about the newcomers Geforce GTX 750 and 750 Ti, but now pictures and specifications are also leaking from what is, by all accounts, an official press conference in Vietnam.

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1 Specifications: Geforce GTX 750 and GTX 750 Ti

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Specifications: Geforce GTX 750 and GTX 750 Ti

	GTX 750	GTX 750 Ti	GTX 650 Ti	GTX 660
Technical	28 nm	28 nm	28 nm	28 nm
Circuit	GM107	GM107	GK107	GK106
Architecture	Maxwell	Maxwell	Kepler	Kepler
CUDA cores	512 st.	640 st.	768 st.	960 st.
Texture units	32 st.	40 st.	64 st.	80 st.
Raster units	16 st.	16 st.	16 st.	24 st.
Clock frequency	1 020 MHz	1 020 MHz	925 MHz	980 MHz
GPU Boost	1 085 MHz	1 085 MHz	–	1 033 MHz
Memory bus	128-bit	128-bit	128-bit	192-bit
Memory amount	1 GB	1 GB	1 GB	2 GB
Memory frequency	5 000 MHz	5 400 MHz	5 400 MHz	6 000 MHz
Memory bandwidth	80 GB/s	86,4 GB/s	86,4 GB/s	144 GB/s
Power supply	–	–	6-pin	6-pin
TDP	55 W	60 W	110 W	140 W

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On the forum Tinhte.vn spread images on the reference model of the Geforce GTX 750 Ti together with the manufacturer’s own specifications and performance figures. From these it appears that most are about high efficiency, according to Nvidia twice as high performance per watt than today’s Kepler.

In terms of performance, the Geforce GTX 750 Ti will end up somewhere between the GTX 650 Ti and GTX 660 at 110 and 140 W, respectively. GTX 650 Ti.

The specifications state that the GM107 graphics processor contains 640 CUDA cores according to the Maxwell architecture. This is combined with 1 GB of memory on a 128-bit memory bus. The graphics processor’s clock frequency is 1020/1085 MHz (base / boost) while the memory spins at 5.4 GHz GDDR5.

The downsized cousin Geforce GTX 750 stops at 512 CUDA cores, but maintains the graphics processor’s clock frequencies. Here, too, 1 GB of memory can be seen on the 128-bit memory bus, but the clock frequency drops to 5.0 GHz GDDR5. As a result, the TDP value drops to 55 W.

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The low power consumption means that at least the reference models do not require any extra power supply in addition to the 75 W provided by the motherboard. However, most partner manufacturers plug in a 6-pin PCI Express connector, possibly to provide a margin for overclocking.

The Geforce GTX 750 and 750 Ti will be launched on February 18.

Source: Computerbase.