6 expert reviews - 0 user reviews
We have collected 6 reviews of the AMD Radeon HD 7770. Experts rate AMD Radeon HD 7770 6.8/10. Reviewsor.com helps you find reviews, best prices, user reviews of the AMD Radeon HD 7770 and AMD Graphics cards.
Though the Radeon HD 7750 is meant to be an upgrade that anyone can afford, and to be a GPU that works in any PC, the faster 7770 model reviewed here has some restrictions. While it runs modern games 25 percent to 30 percent faster, it also requires enough room in your system for a double-wide card and a six-pin PCIe power plug, which not all computers have. It's fast enough for modern games, but just barely. Nobody likes spending more than they have to, but serious PC gamers will probably want to pony up more than the $139 asking price for the Radeon HD 7770. There's a vast difference in performance between graphics cards priced around the $200 level and this one. The 7770 is even a fair bit slower than its closest competitor in price, the GeForce GTX 560. We can look at an individual game, like Crysis 2, and see that the Nvidia card is a good 20 percent faster. In fact, when we average together the results from all our test games (Crysis 2, Dirt 3, Metro 2033, and Just Cause 2), we find the GeForce 560 to be over 25 percent faster. That's a substantial difference in performance that any serious gamer would certainly take notice of. So why would a gamer with $140 to spend choose the Radeon HD 7770 over the GeForce 560?
A mid-range card in the AMD 7000 series, the Radeon HD 7770 is the first graphics card with a base processor clock of 1 GHz. It’s positioned to garner the key market concentrated around the £130 level. Let’s see what it has under the bonnet. Just 21 cm long, the Radeon HD 7770 can be classed as a small card. This cooler on the model sent to the press is an axial type, meaning that not all the hot air is sent out of the box. Here this isn't too much of an issue as the chip doesn’t heat up much. When it comes to noise, the fan doesn't do that well. At idle, the rotation of the blades can be heard and makes a slightly annoying high-pitched noise. This gets louder in gaming and while we only measured it at 43.5 dB(A), the high pitch remained. In view of the impressive energy consumption readings for the Radeon HD 7970 and Radeon HD 7950 it’s not surprising to see that the HD 7770 consumes so little. At idle, it draws just 87 Watts, which is 10% down on the old generation (Radeon HD 6790). During periods of long inactivity (when the screen switches off in fact), Zero Power cuts the fan off and energy consumption drops 10 Watts to 74 Watts.
AMD isn't yet ready to abandon its tour of the Southern Islands. Though the company released the second card in its 7000 series, the just-under-top-of-the-line Radeon HD 7950, only two weeks ago, it's already back with a third. This one, however, is a slightly tougher sell. The Radeon HD 7770 GHz Edition offers all the attractive features we've seen on AMD's other cards in this generation. But, as priced at $159 (list), it does not definitively defend the space against other, older models currently floating around. You can't do better with newly released hardware right now, but it's too early to tell whether the 7950's modest virtues will prove to be of major value once AMD and Nvidia have finished fleshing out their lines. What is clear at the moment about the 7770 (along with the less-powerful Radeon HD 7750, a member of the family seductively code-named \"Cape Verde”) is that AMD has gone through all the proper motions to fit it into the 7000 series. Like both the 7950 and its highest-end predecessor, the Radeon HD 7970, it utilizes the new 28nm Graphics Core Next architecture that both uses a revised instruction set to give each compute unit the power to simultaneously execute instructions from multiple kernels and can process more instructions per clock cycle per square millimeter of GPU space.
By now you should all know the drill. A big GPU manufacturer releases a new high-end GPU, based on a new or updated architecture. Then over the course of the next few months, the company continually fleshes out its product stack until a top-to-bottom line-up of new graphics cards emerges, at a wide range of price points, all based on the same architecture. If you've been paying attention as of late, you've probably noticed that AMD recently released a couple of high-end graphics cards—the Radeon HD 7970 and 7950—based on the GPU codenamed \"Tahiti”, which sports an entirely new architecture, dubbed Graphics Core Next, or GCN. With the launch of the Radeon HD 7900 series set forth, what we have on tap for you today should come as no surprise. AMD's current high-end products are based on a new architecture, so it's time to flesh out the rest of the product stack with some new stuff, of course. AMD is launching two more Radeon HD 7000 series products today, the Radeon HD 7770 and 7750, but unlike the 7970 and 7950, these two new cards are based on a fresh GPU codenamed \"Cape Verde”. Cape Verde has essentially the same feature set as the more powerful Tahiti, but is pared down to target a totally different market segment, and be more affordable and power friendly too.
Having covered the $549 and $449 territories in January with the Tahiti-based Radeon HD 7970 and HD 7950, AMD is bringing its latest generation GPU to mainstream brackets today. The new Radeon HD 7770 and 7750 use the same 28nm design process and Graphics Core Next (GCN) architecture as the 7000 series flagship, albeit in more affordable configurations. The move to 28nm lets AMD squeeze 1500 million transistors into a 123mm2 die. In addition, the HD 7700 series die is 26% smaller than the HD 6770, while containing 44% more transistors. As impressive as those figures are, gamers will be more excited to see AMD's prices: the HD 7770 is $159 -- in line with the GeForce GTX 560 -- and the HD 7750 is even cheaper at $109, combating the GTX 550 Ti. As discussed in our preliminary Radeon HD 7000 review, the new series represents AMD's most significant graphics architecture overhaul in the last decade. It was back then that AMD adopted the Graphics Parallel Core architecture, employing groups of scalar processors that work out very long instruction words, commonly abbreviated as VLIW. Radeon HD 5000 cards used VLIW5 and last year's HD 6000 series transitioned to a more sophisticated VLIW4 architecture.
AMD showed its hand first in this year's GPU arms race with Nvidia... by turning it into last year's arms race. While Nvidia has kept shtum about its upcoming new 'Kepler' architecture and looks to do so until Spring, AMD stole the march and released the first of its new 7-series cards, the AMD HD 7970, a few days before Christmas 2011. That sure was odd timing, but it taught us a lot about AMD's new Southern Islands architecture, specifically the 'Tahiti' chip. It's fully PCIe 3.0-supported, uses a 28nm manufacturing process to pack more transistors onto a PCB than ever before, and apart from offering very quick DX11 game frame rates, it's a highly energy efficient beast. When your system drifts off into standby, the Tahiti card switches itself all but off too, minimising power draw.The HD 7970's whopping £440 price made all those neat features all but irrelevant to the gaming masses though, so we're putting our hopes on this HD 7770 to deliver the best bits of the new AMD architecture for a more palatable price. The 'Cape Verde' chip that this HD 7770 is built around makes full use of the new Graphics Core Next architecture like its big bro, with ZeroCore power efficiency in tow and a solid 1,000 MHz core clock.
|HIS H777F1G2M Radeon HD 7770 1GB (128bit) GDDR5 2x Mini-Displayport HDMI DVI (HDCP) PCI Express X16 3.0 Graphics Cards||$109.99||See it|
|ASUS 1120 MHz Overclock 20% Cooler DIGI+ VRM Technology Graphics Cards HD7770-DCT-1GD5||$133.26||See it|
|Asus HD7770-DCT-1GD5 Radeon HD 7770 Graphic Card - 1120 MHz Core - 1 GB GDDR5 SDRAM - PCI Express 3.0 x16 - 4600 MHz Memory Clock - 2560 x 1600 - CrossFireX - Fan Cooler - DirectX 11.0, OpenGL 4.2 - HDMI - DisplayPort - DVI||$135.38||See it|
|ASUS 1120 MHz Overclock 20% Cooler DIGI+ VRM Technology Graphics Cards HD7770-DCT-1GD5||$145.99||See it|
|ASUS Radeon HD7770 PCIe 3.0||$145.99||See it|
|Asus HD7770-DC-1GD5 Radeon HD 7770 Graphic Card - 1020 MHz Core - 1 GB GDDR5 SDRAM - PCI Express 3.0 x16 - 4600 MHz Memory Clock - 2560 x 1600 - CrossFireX - Fan Cooler - DirectX 11.0, OpenGL 4.2 - HDMI - DisplayPort - DVI||$149.99||See it|
|ASUS HD7770-DC-1GD5 Radeon HD 7770 1GB GDDR5 PCI Express 3.0 x16 Video Card||$157.99||See it|
|Radeon HD7770 1020MHz (HD7770-DC-1GD5) -||$159.64||See it|
|Radeon HD7770 1020MHz (HD7770-DC-1GD5) -||$159.64||See it|
|ASUS Radeon HD7770 1020MHz - HD7770-DC-1GD5 HD7770-DC-1GD5||$187.59||See it|
|Asus US HD7770-DCT-1GD5 Radeon HD7770 PCIe 3.0||$194.4||See it|
|Gigabyte GV-R777OC-1GD AMD Radeon HD 7770 1GB GDDR5 DVI-I / HDMI / 2x mini-Displayport PCI-Express 3.0 Graphic Card||$245||See it|
|Sapphire 11201-00-20G Radeon HD 7770 GHZ 1GB DDR5 HDMI / DVI-I / Dual Mini DP PCI-Express Graphics Card||$409||See it|