NVIDIA's GeForce GTX 560: The Top To Bottom Factory Overclock

NVIDIA’s GF104 and GF114 GPUs have been a solid success for the company so far. 10 months after GF104 launched the GTX 460 series, NVIDIA has slowly been supplementing and replacing their former $200 king. In January we saw the launch of the GF114 based GTX 560 Ti, which gave us our first look at what a fully enabled GF1x4 GPU could do. However the GTX 560 Ti was positioned above the GTX 460 series in both performance and price, so it was more an addition to their lineup than a replacement for GTX 460.

With each GF11x GPU effectively being a half-step above its GF10x predecessor, NVIDIA’s replacement strategy has been to split a 400 series card’s original market between two GF11x GPUs. For the GTX 460, on the low-end this was partially split off into the GTX 550 Ti, which came fairly close to the GTX 460 768MB’s performance. The GTX 460 1GB has remained in place however, and today NVIDIA is finally starting to change that with the GeForce GTX 560. Based upon the same GF114 GPU as the GTX 560 Ti, the GTX 560 will be the GTX 460 1GB’s eventual high-end successor and NVIDIA’s new $200 card.

	GTX 570	GTX 560 Ti	GTX 560	GTX 460 1GB
Stream Processors	480	384	336	336
Texture Address / Filtering	60/60	64/64	56/56	56/56
ROPs	40	32	32	32
Core Clock	732MHz	822MHz	>=810MHz	675MHz
Shader Clock	1464MHz	1644MHz	>=1620MHz	1350MHz
Memory Clock	950MHz (3800MHz data rate) GDDR5	1002Mhz (4008MHz data rate) GDDR5	>=1001Mhz (4004MHz data rate) GDDR5	900Mhz (3.6GHz data rate) GDDR5
Memory Bus Width	320-bit	256-bit	256-bit	256-bit
Frame Buffer	1.25GB	1GB	1GB	1GB
FP64	1/8 FP32	1/12 FP32	1/12 FP32	1/12 FP32
Transistor Count	3B	1.95B	1.95B	1.95B
Manufacturing Process	TSMC 40nm	TSMC 40nm	TSMC 40nm	TSMC 40nm
Price Point	$329	~$239	~$199	~$160

The GTX 560 is basically a higher clocked version of the GTX 460 1GB. The GTX 460 used a cut-down configuration of the GF104, and GTX 560 will be doing the same with GF114. As a result both cards have the same 336 SPs, 7 SMs, 32 ROPs, 512KB of L2 cache, and 1GB of GDDR5 on a 256-bit memory bus. In terms of performance the deciding factor between the two will be the clockspeed, and in terms of power consumption the main factors will be a combination of clockspeed, voltage, and GF114’s transistor leakage improvements over GF104. All told, NVIDIA’s base configuration for a GTX 560 puts the card at 810MHz for the core clock and 4004MHz (data rate) for the memory clock, which compared to the reference GTX 460 1GB is 135MHz (20%) faster for the core clock and 404MHz (11%) faster for the memory clock. NVIDIA puts the TDP at 150W, which is 10W under the GTX 460 1GB.

Read More - http://www.anandtech.com/show/4344/nvidias-geforce-gtx-560-top-to-bottom-overclock