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Video Cards Posts - Page 53

NVIDIA GeForce GTX 680 can overclock... itself!

I bet you read that title, and thought "haha, yeah right", well, strap yourself in ladies and gentlemen. NVIDIA's 28nm-based Kepler GK104 GPU is being shown around the Game Developers Conference, as we speak, with Heise.de citing people it spoke to at CeBIT.

 

nvidia_geforce_gtx_680_can_overclock_itself_03

 

Let's do this: some models of the GeForce 600-series from NVIDIA will introduce a load-based clock speed-boost feature, similar to Intel's Turbo Boost, where the GPU will ramp up clock speeds to the GPU when it senses heavy loads. If there's a stressful scene to render, the GPU overclocks itself, gets through the scene, and goes back down to stock speeds. Wow.

 

This ensures that the GPU has higher minimum and average frame rates, which is a great thing to see. Another thing to point out, is the GK104 does actually sport 1,536 CUDA cores, which should give it a definite kick up the bum for number-crunching scenarios, such as shading, post-processing, and GPGPU-based work. But, the CUDA cores don't automatically give you super amounts of performance, unfortunately.

 

It's said to give the GTX 680 a 10-percent (or so) advantage of AMD's Radeon HD 7970 in Battlefield 3 for example, but be roughly 10-percent slower than the HD 7970 in 3DMark 11. Something else worth pointing out is that the GeForce GTX 680 will launch this month, and not be a paper-launch. Small quantities will be made available, and through just select AIC partners. Quantities should start building up over the later months.

Continue reading 'NVIDIA GeForce GTX 680 can overclock... itself!' (full post)

NVIDIA GeForce GTX 680 specifications are here

VR-Zone have a very tasty nugget of information regarding NVIDIA's 28-nm based Kepler GPUs, the first of which is the GeForce GTX 680. We're looking at the GTX 680 sporting 1536 SP, and 256-bit memory. It was rumored to not feature shader hotclocks, but it does.

 

nvidia_geforce_gtx_680_specifications_are_here_03

 

The core should be clocked in at 705 MHz, with shaders sitting at 1411 MHz, this continues to 2x shader hotclock from Fermi. GK104 also significantly improves upon the GF110/GF114's memory controller, where it pushes boundaries right up against the fence to 6 GHz. What this will provide is a memory bandwidth of 192GB/sec, identical to the GTX 580, even though it has a narrower memory bus.

 

The GeForce GTX 680 will sport 4 display outputs: stacked dual DVI, HDMI and DisplayPort. One disappointing feature is it only features two SLI connectors, enabling only 3-way SLI. Considering the GTX 580 could handle 4-way SLI, this is quite strange. The GTX 680 is said to be 10-inches long, 0.5-inches shorter than its predecessor. This makes it longer than the GTX 560 Ti or HD 7870, but shorter than the HD 7950 and GTX 570.

 

NVIDIA will reveal details of the GTX 680 on my birthday of all days, March 12th. We should then expect a hard launch (rumored) for March 23rd.

NVIDIA Kepler GK104 cards coming on March 23

EXPreview is teasing that NVIDIA could release their Kepler-based GK104 GPU as soon as March 23. You know, as in, less than three weeks from now. Maximum-Tech "confirmed" GK104 to debut in April, but AIC (add-in card) vendors in China have said that GK104 "won't be postponed to April".

 

nvidia_kepler_gk104_cards_coming_on_march_23_02

 

Operation Director of ZOTAC in the Asia-Pacific area said at Weibo:

 

GK104 launch won't be delayed to April, and the relative products have been ready.

 

The CEO of Galaxy, also revealed at Wiebo:

 

There are too many things (GK104) happening in March.

 

nvidia_kepler_gk104_cards_coming_on_march_23_05

 

Looks like we could expect the GeForce GTX 670 Ti cards to hit the shelves and hearts of Team Green supports across the world, hopefully not in a paper launch way, by the end of this month, or early-April.

 

A band, Cobra Starship, had an album named after what I think this will be: Hot Mess. Not a hot mess in a bad way, but in a very, very good way.

AMD Radeon HD 7800 series launched!

The mainstream AMD Radeon HD 7800-series has launched, in the forms of two cards: HD 7850 and HD 7870. It seems as though these cards pack quite the power for their price, with performance per Watt quite high.

 

amd_radeon_hd_7800_series_launched_09

 

The HD 7870, according to benchmarks, seems to keep up with cards like the GeForce GTX 580 in Metro 2033, and only lose out to its bigger brothers in the HD 7950 and HD 7950 by a few frames per second. Quite the amazing card if I do say so myself! Check out the reviews below:

 

TweakTown - HD 7850

TweakTown - HD 7870

techPowerUp!

Hardware Canucks

KitGuru

HotHardware.com

Continue reading 'AMD Radeon HD 7800 series launched!' (full post)

NVIDIA Kepler power circuitry, 300W TDP

VR-Zone have an interesting piece on the power circuitry within NVIDIA's upcoming Kepler GPU, and it reveals some juicy info. First up, NVIDIA is tapping the supply chain maker Foxconn to manufacture the high-end Kepler-based GPUs, and according to sources, NVIDIA has used the strategy of switching between Flextronics and Foxconn in the past, but are now happy with Foxconn.

 

The board talked about was manufactured in Q3 of last year, which would lead us to believe that NVIDIA have had Kepler GPUs for a while now. Kepler was meant to see the light of day in 2011, with Maxwell hitting in 2013, but that won't be happening now. It's obvious that yields were low once again for NVIDIA, which is why they would've stopped from pushing Kepler cards into production. In NVIDIA's recent financial analyst call, the can-of-whoop-ass himself Jen-Hsun stated that the 28nm supply will be "constrained through the year (2012)".

 

nvidia_kepler_power_circuitry_300w_tdp_14

 

The diagram above shows that the board in question (GeForce GTX 670 Ti) requires a single six-pin and eight-pin power cables, which gives us 75W + 150W + 75W = 300W total, even though it should still work with just two six-pin rails. Three phases are dedicated to feed the GPU, and dual phase is for the rest of the board. VR-Zone say they'll continue to post articles covering this in the future, while I wait with anticipation.

NVIDIA Kepler GK104 part will be called the GeForce GTX 670 Ti

Team Green is hard at work on their Kepler GPUs, which are based on a 28nm process, and it seems as though the GK104 part is going to be called the GeForce GTX 670 Ti.

 

nvidia_kepler_gk104_part_will_be_called_the_geforce_gtx_670_ti_05

 

NVIDIA is obviously keen to get this part onto shelves now, to combat the GCN-based AMD Radeon HD 79x0 parts, and this could be way the otherwise mid-range SKU has been changed from what should've been the GTX 660 to the GTX 670 Ti. This move could be so that it indicates this part will perform competitively against the high-end parts already on the market, such as the HD 7000-series.

 

Sources have told SweClockers that they expect the GK104-based GeForce GTX 670 Ti to outperform the GeForce GTX 580 and Radeon HD 7950. techPowerUp are reporting they're hearing rumblings of a March launch, and if NVIDIA want to beat the HD 7800-series launch, they'll have to wave that Team Green flag, now.

RumorTT: NVIDIA Kepler GPU to launch mid-March

EXPreview have posted some interesting news/rumor/talk about the upcoming 28nm-based NVIDIA Kepler GPUs where forum friend of EXPreview "phk" posted an article saying:

 

rumortt_nvidia_kepler_gpu_to_launch_mid_march_06

 

During the week of March 15th, there comes with spot goods, NVIDIA won't follow AMD in spite of tight schedule.

 

Although phk doesn't state which product/s will debut, it should be an NVIDIA Kepler-based product. Whether this will be a paper launch, or a proper launch, I guess we'll have to wait and see. NVIDIA will need to release something, because if they don't, AMD will have a near top-to-bottom release of their GCN-based cards before NVIDIA even drops a single Kepler GPU. Can Team Green do it?

AMD "Pircairn" 7800-series specs are here

AMD have had their launch of their Radeon 7900-series, and now its time for the next Graphics CoreNext cards to be unveiled, the "Pitcairn" cards. The Pitcairn cards will slot into the Radeon HD 7800-series, where we'll see three SKUs from this series.

 

amd_pircairn_7800_series_specs_are_here_04

 

First up we'll have the Radeon HD 7870, then a 2GB 7850 and a 1GB 7850. Spec-wise, we have:

 

Radeon HD 7870

 

  • 22 GCN CUs, 1408 stream processors
  • 88 TMUs, 24 ROPs (de-linked from memory bus)
  • 256-bit wide GDDR5 memory interface, 2 GB
  • Clock speeds of 950 MHz core, 1375 MHz (5.50 GHz effective) memory

 

Radeon HD 7850

 

  • 20 Graphics CoreNext Compute Units, 1280 stream processors
  • 80 TMUs, 24 ROPs (de-linked from the memory bus, of course)
  • 256-bit wide GDDR5 memory interface, 2 GB and 1 GB variants
  • Clock speeds of 900 MHz core, 1250 MHz (5.00 GHz effective) memory

NVIDIA preps GeForce GTX 560 SE, wants to tango with AMD's Radeon HD 7770

NVIDIA rebrands again, and is set to release the 6th member of the desktop GTX 560 family, which will enjoy giving presents to the following GPUs on Christmas: GTX 560 Ti, GTX 560, GTX 560 Ti (OEM), GTX 560 (OEM) and GTX 560 Ti 448 Core.

 

nvidia_preps_geforce_gtx_560_se_wants_to_tango_with_amd_s_radeon_hd_7770_07

 

But, the GTX 560 SE seems to fall in line more with the OEM GTX 555 than those GPUs. The GTX 560 SE is made from a GF114 derivative, but with 2 SMs disabled which brings it to a total of 288 SP and 48 TMU. Core clocks will be placed at 776MHz, with shaders placed at 1552MHz. 1 MC is disabled, which gives the GTX 560 SE a memory interface of 192-bit, with 3828MHz 1GB GDDR5 with a total bandwidth of 92GB/sec.

 

The new GTX 560 SE is expected to offer performance similar to that of the GTX 555 OEM, and is looking to go into the ring against the quite-amazing AMD Radeon HD 7770. It will be priced quite competitively, at the $150-mark, but won't match AMD's amazing performance/watt ratio.

AMD's Radeon HD 7770 and HD 7750 launched

AMD's first super-affordable Graphics Core Next-based, 28nm GPUs are here in the form of the AMD Radeon HD 7770 and HD 7750. They offer some really impressive value for money.

 

amd_s_radeon_hd_7770_and_hd_7750_launched_04

 

The new GPUs are in the under-$199 category, which is perfect for budget-concious gamers. The HD 7770 seems to keep up and sometimes beat the already-great NVIDIA GeForce GTX 560 Ti card, which is something truly amazing considering it's maximum power consumption comes in at under 85W. Yes, under 85W. For comparison sake, the GTX 560 Ti uses over 215W.

 

Take a look at some of the reviews of the new GPU below:

 

techPowerUp! - PowerColor Radeon HD 7770 1 GB | Radeon HD 7770

eTeknix - Sapphire Radeon HD 7770 Overclock Edition 1GB | AMD Radeon HD 7750 Pro 1GB Graphics Card

Continue reading 'AMD's Radeon HD 7770 and HD 7750 launched' (full post)

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