While NVIDIA launched new low-end cards coming out many months ago, products have about the next generation of its architecture is based GF100 far more to produce. Even now, NVIDIA has once again kept the full GF100 – the ZOTAC GeForce GTX 480 is actually a slightly stripped down version of the GF100. But the fastest single-chip NVIDIA card we have seen – and to stop for that matter, the fastest single-chip card is full.

Such as ATI, NVIDIA has moved a 40nm manufacturing process for these chips, but the chips themselves are much larger than their ATI counterparts. However, the actual cards are not gigantic, and ZOTAC GeForce GTX 480 should fit in any decent size case – it certainly will not lead to the same problems as the ridiculously long 5970, for example.

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The Zotac GeForce GTX 480 is very hot and although the performances are intoxicating in fact. The GTX 480 deletes theoretically 250 watts at maximum load – we have determined the actual number may exceed 350 watts – which produces only 5870 188th Even at idle, 47 watts (almost double that of 5870) a fairly substantial number A six-pin and one eight-pin connector is required. Some PCs can only support one pair of six-pin connectors, you must set this clock. The 480 is in use according to the map, so you really want to be with the computer in the room it is installed to keep it in.

Both the BFG NVIDIA GeForce GTX 480 and ZOTAC GeForce GTX 470 have some relatively new approaches for the video, with better handling of raster operations, improved floating-point calculations, and improved texture units. Not everything is on the specifications, but on the hand. A simple measure of the filling rate, for example, suggests that the far inferior to 480 of the 5870 – 42.0GTps (GTexel per second) instead of the 68.0GTps 5870. Even with attention to floating-point calculations on paper the 5870 figure of 2.72TFlops twice the GTX 480 is is 1.35.

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The Zotac GeForce GTX has 480 less texture units, although they help ward ROPs. Perhaps more significant is its memory bandwidth (177.4GBps to 153.6GBps) is much stronger, in part, to be on the 480′s 384bit memory interface significantly wider than the 5870 256-bit alternative. It also helps that this card has a powerful 1536B of GDDR5 memory.

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However, only the video card test numbers that are really important to frame rates. And here the Zotac GeForce GTX 480-5870 feeds his ears, pulling off a series of victories, the 5870 is in place. Although the sky show and Crysis tests, leads a 5-9fps that wins 480 easily everywhere, from the 5870 between 6 and 16fps in Aliens vs. Predator and 25 to 27fps in high frame rate environment Hawx. The card has more than enough to make short work of DirectX 11, although we have not found the 480 5870th as to be better at holding the tempo in the DX11.

Gigabyte has provided us with their most impressive GeForce GTX 460, the GV-N460OC-1GI, also happens to be their only GTX 460 1GB graphics card. This product was fundamentally revised and both the PCB and cooler are not part of the reference specification. In short, this is not to be your standard GeForce GTX 460 1GB.

The Gigabyte GV-N460OC-1GI measures only 21cm long, the same length as the Radeon HD 5770 and most other GeForce GTX 460 graphics cards. The card is so compact that it only measures longer than a few inches of the PCI Express x16 slot, a remarkable feat for such a powerful graphics card.

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The biggest change made as to recognize the physical dimensions, if the other power electronics. Gigabyte has changed the layout and design when compared to standard GeForce GTX 460 cards we have seen, while they have also included its “Ultra Durable VGA technology.

Gigabyte claim for better overclocking capabilities, offer lower GPU temperatures and high energy efficiency using 2 ounces of platinum, Samsung or Hynix memory, Japanese solid capacitors, ferrite/metal core chokes and low RDS (on) MOSFETs.

The new cooler is based on the Gigabyte “Winds 2x” design on dual copper heatpipes which connect with a copper-based account. effectively minimized by the use of a pair of 75mm fans Gigabyte claims the flow of the turmoil among fans and in the process have improved, the heat dissipation. The heat sink is also equipped with a black fan shroud, the better to direct the air flow is detected. Finally, the Gigabyte design of power electronics has to be passively cooled by a small aluminum heat sinks.

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Despite a well-equipped cooling solution Gigabyte has quite reserved when it comes to the card operating frequencies. The clock rate was increased by only 40 MHz to 715MHz while the memory speed remains at 900 MHz (3.6GHz) standard. The shader clock of 1350MHz to 1430MHz is, which is higher than the GeForce GTX pushed 480th

The last addition we can mention us on the Gigabyte GV-N460OC-1GI, the HDMI connector and dual DVI connectors. Overall, the GM-N460OC 1GI is an impressive on the new Nvidia GeForce GTX take 460, and we are very interested to see how they perform against the 768MB version and a standard-clocked GTX 460 1GB.

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In recent weeks, ATI continues to roll-out of the “Evergreen” Radeon HD 5 series range of DirectX 11 graphics cards. The Nvidia ATI v. rivalry that stretches in previous GPU has passed, may make a non-starter with ATI performance, mainstream and lower end segment of Nvidia cards without reaction. In fact, the Fermi-cards are not taken in the markets until the end of March 5870th six months on board ATI’s headliner – the Radeon HD

The performance of GPUs (5800 series and higher) use the Cypress chip architecture with the mainstream cards using the smaller Juniper core. This segment of mainstream DirectX 11 ATI spectrum was filled with the joint launch of the HD 5770 and HD 5750th So what is the difference between the two 5700 cards? Effective in 5770 the full-fat version of the Juniper-chip, using all ten SIMD cores with the 5750 is a bit trimmed down.

Today’s review could takes a look at the Sapphire Radeon HD 5770 to determine if Juniper can deliver to the extent the Cypress chip.

Let’s move on to the GPU using a 40nm manufacturing process. As already mentioned, the HD 5770 is the full Juniper with all 10 SIMD cores enabled with a clock speed of 850MHz and a total of 800 stream processors.

40 Texture Units, 16 color raster operation units (ROPs) and 64 Z/Stencil ROPs are in the 5770 architecture in addition to a GDDR5 memory interface clocked to 1200MHz used and supports a bandwidth of 76.8GB/s over a 128-bit bus .

The transistor count comes to 1.04 billion euros, nearly half of the Cypress (5800 series) GPUs at 2.15 billion, but something more than the previous generation of ATI cards.

In the field of thermal solutions, the HD5770 has an encapsulated heat sink with an embedded fan at one end. The cooler covers four memory modules with the other four to the left back of the card face up.

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Move to the end of the card is the connection of the standard 5-series ATI layout with dual-link DVI outputs down a single DisplayPort and HDMI port. Fill two PCI slots, a small vent is cut into the end with a DVI connector at each slot. The result of these connections allows the user to use various technologies such as ATI Eyefinity: This allows a multi-monitor configuration of up to three monitors be used in conjunction with a single card.

Consequently, a resolution max (3x) 2560×1600 is available with different views on different monitors designed to enhance the game experience or ATI put it, fully Engaging your peripheral vision and put in the game appears.

However, if a single card is not enough for you, dual CrossFireX connections for a multi-GPU support. Extra power is needed in the form of a single PCI-e connector.

The memory is supplied by Hynix and designed for use with 5 Gbps with the card with eight memory modules, equipped four on the front and another four on the back.

Overclocking

Overclocking the Sapphire Radeon HD 5770 1GB graphics card was made by a combination of MSI Afterburner and AMD GPU clock tool. This allows both memory and core clock can be set, as well as fan speed, which is not supported by AMD’s tool.

In addition, this combination allows the frequencies of both memory and core at above the slider in ATI Catalyst Control Center can be addressed and are unlimited, so that the maximum possible overclocking can be achieved.

Set for the process of overclocking, fan speed to 100% providing the highest possible clocks to run. Please note that all the chips vary, however, and so the results achieved in this article may not be representative for all HD 5770s. The core clock was first increasing the frequency in small steps until maxed Crysis Warhead artificact began. The same procedure was then to determine the highest bidder viable memory clock.

It turns out that the Sapphire Radeon HD 5770 overclocking actually very impressive: Increasing the core clock speed of 850MHz 975MHz (14.7%) and the memory clock from 1200MHz to 1456MHz (21.3%).

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The overclocked settings certainly a significant improvement to the two highest settings on Crysis Warhead and Dawn of War II testing. The former sees an increase of 2.9 frames per second (13.2%) and the latter an increase in 4.4FPS (9.2%). Obviously there is much room for overclocking performance had to be increased on the order of about 10 percent.

Results Analysis

The Juniper chip is able to produce a very solid set of results by the bank. The Sapphire Radeon HD 5770, to about 20 pounds more than the GTS 250 is conveniently located, the Nvidia card by a few frames per second while offering a number of additional features: the largest of which is undoubtedly DirectX 11 does.

Easily accessible by an approximate guide of 40 frames per second for First Person Shooter and 30 frames per second for real-time strategies for “smooth playable gameplay”, the HD 5770 is for the most part in the situation. However, under difficult conditions such as Crysis Warhead, the card has a little fade and it was again the case at the highest settings on titles such as STALKER: Clear Sky. These settings are pretty high as the game engine and which is so, but when playing in these conditions it is very likely a gamer-specific card is probably more appropriate: cue the Cypress-based 5800.

Overclocking Sapphire’s 5770 Juniper proved fruitful venture with a lot of headroom when pushing the fan speed to a maximum and the use of AMD GPU Clock Tool. Pushing both the core and memory to allow well over the stock speeds of at least 10% better performance push the performance level much closer to the HD 5850 but still behind a good piece of himself.

In essence, the 5770 is not exactly what it says on the tin: the offer of a mainstream card that is much more accessible to the majority of users. ATI has always done well in the low-end and mainstream markets, and the 5770 is another example of their dominance. Equipped with an impressive value for money, watches the map with only 120 pounds – a very reasonable price, given the novelty of the DirectX 11 chip and array technologies are embedded in the card.

Verdict

The Sapphire Radeon HD 5770 has really impressed. Despite not with the level of performance that Cypress can achieve powered cards, the frame rates are solid enough, and provide appropriate levels of performance in line with the price.

The DirectX 11 support, ATI Eyefinity Monitors and streaming technology are all very remarkable properties make the series of ATI DirectX 11 cards much more advanced than anything Nvidia has produced to date, as we await the end of March launch of the Fermi.

Overall, it is a very impressive mainstream card, and although a little lacking in performance when you are by top gaming quality, for the average user it is a very tempting purchase.

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