titleLast week we took a look at the Nvidia GTX 780, their first card in the 700 series of cards. Surprisingly I am sitting here a week later already telling you about their next card: the GTX 770. Is the combination of the GTX 780 and GTX 770 a one-two punch or a hit and a miss? Well in order to find out we had to put it through our benchmark suite to see what it was capable of. I enjoyed the GTX 780; I hope they are able to keep it up with the GTX 770.

Product Name: Nvidia GTX 770

Review Sample Provided by: Nvidia

Written by: Wes

Pictures by: Wes


GTX 770 Details

You have to be wondering what is so different about the GTX 770, I mean we just saw the GTX 780 last week right? Well there are a lot of similarities between the two cards. Visually they are basically the same other than small details like the GTX 770 logo on it and a few changes on the PCB. So what sets it apart? The GTX 780 uses the GK110 GPU that was also in the Titan and the GTX 770 uses the same GK104 that we saw in the GTX 680. Clock speed between the GTX 770 and the GTX 680 are actually fairly close, the base clock is closer to what we saw with the GTX 680’s boost clock and the GTX 770’s boost clock speed is 1085 MHz.

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Beyond that difference, they also went with the fastest memory every used at a whopping 7 Gbps. This is faster than what we saw on the GTX 780 even. They did drop down the capacity from the GTX 780 to 2 GB’s using a 256-bit memory controller, just like the GTX 680 did. Nvidia also mentioned that we can expect to see 4GB models out as well.

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So what do those changes mean overall? Well Nvidia is showing a Single Precision score of 3.2 Teraflops, falling nicely in between the GTX 680’s 2.5 and the GTX 780’s 4.0. For power usage the GTX 680 was very efficient, in order for them to up the memory speed and the clock speed we did lose some of that but the GTX 770 does use less than what the GTX 780 uses. The GTX 780 pulls 250 watts where the GTX 770 pulls 230 watts, it’s not a huge difference, but it will make a difference on your electric bill over a year or two. Because of the increase in power usage over the GTX 680 though, the GTX 770 does use the same 8+6 power plug configuration that the GTX 780 uses.

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Model

GTX 580

GTX 680

GTX 770

GTX 780

CUDA Cores

512

1536

1536

2304

Base Clock

772MHz

1006 MHz

1046 MHz

863 MHz

Boost Clock

NA

1058 HHz

1085 MHz

900 MHz

Single Precision

1.5 Teraflops

2.5 Teraflops

3.2 Teraflops

4.0 Teraflops

Memory Config

2GB/384-bit GDDR5

2GB/256-bit GDDR5

2GB or 4GB/256-bit GDDR5

3GB/384-bit GDDR5

Memory Speed

4.0 Gbps

6.0 Gbps

7.0 Gbps

6.0 Gbps

Power Connectors

6-pin + 8-pin

6-pin + 6-pin

6-pin + 8-pin

6-pin + 8-pin

TDP

244W

195W

230W

250W

Outputs

Mini HDMI

Two Dual Link DVI

2x DL-DVI

HDMI

DisplayPort 1.2

2x DL-DVI

HDMI

DisplayPort 1.2

2x DL-DVI

HDMI

DisplayPort 1.2

Bus Interface

PCI Express 2.0

PCI Express 3.0

PCI Express 3.0

PCI Express 3.0

Let’s not forget that the GTX 770 still does get the same features we introduced with the GTX 780 though. It does take advantage of Boost 2.0 for better on the fly clock speed boosts as well as letting us have temperature goal overclock/underclock settings. The same can be said for the new fan speed controller programing that focuses on less drastic fan speed changes to make the card noise even less noticeable. Also now that the new drivers have been out for a week everyone should be taking advantage of the Geforce Experience where Nvidia helps you keep your drivers up to date and it also helps fine tune your in game settings to fit your PC configuration perfectly.

Nvidia was also showing off their in house benchmarks of the GTX 770 against the GTX 670 and the GTX 570. They say to expect a 65% performance increase over the GTX 570, a major jump for those who have had their GTX 570 for a few years and are finally looking at an upgrade.

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Specifications

Graphics Processing Clusters

4

Streaming Multiprocessors

8

CUDA Cores

1536

Texture Units

128

ROP Units

32

Base Clock

1046 MHz

Boost Clock

1084 MHz

Memory Clock (Data rate)

7010 MHz

L2 Cache Size

512KB

Total Video Memory

2048MB or 4096MB GDDR5

Memory Interface

256-bit

Total Memory Bandwidth

224.3 GB/s

Texture Filtering Rate (Bilinear)

133.9 GigaTexels/sec

Fabrication Process

28 nm

Transistor Count

3.54 Billion

Connectors

2 x Dual-Link DVI

1 xHDMI

1 x DisplayPort

Form Factor

Dual Slot

Power Connectors

One 8-pin and one 6-pin

Recommended Power Supply

600 Watts

Thermal Design Power (TDP)

230 Watts

Thermal Threshold

95° C


Posted: 1 year 1 month ago by garfi3ld #31185
garfi3ld's Avatar
One of two reviews that we published today, check out Nvidia's new GTX 770

 

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