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PowerColor HD 6870 PCS++ 1 GB
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 PowerColor's new HD 6870 PCS++ comes with massively increased clocks out of the box which makes it roughly as fast as GTX 560 Ti or HD 6950. With a reasonable price increase of only $10 over the reference design, the card does not break the bank either, it is actually a worthy opponent to NVIDIA's GTX 560 Ti considering price/performance.
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Sapphire Radeon HD 6790 1GB DDR5 DX 11 Video Card Review
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"The Sapphire Radeon HD 6790 sits in that entry gamer market. The Radeon 6790 looks to edge out the competition with increased performance. It features a 840MHz core clock, 1050MHz memory clock, 800 Stream processors, and 40 texture units. Onboard there is 1GB of DDR5 memory with a 256-bit interface."
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Radeon HD 6450 review
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The Radeon HD 6450 addresses the low-level market yet AMD has decided to double the number of stream processors available to the Caicos core over previous products. The Radeon HD 6450 graphics card has a 40nm based GPU and packs a very decent 160 SPs, as well as 8 texturing units, 16 Z/Stencil ROP units and 4 color ROP units. It might make an excellent HTPC card with the full UVD 3 engine onboard as well.
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ASUS GTX 590 Review
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With the GTX 590 ASUS also has the NVIDIA dual GPU flagship in
its portfolio. This card is based on the reference design except that
ASUS marginally increased GPU and memory frequencies to get a very
small advatage over their competitors. Never the less we're curious
how this thing will perform in our benchmark parcours.
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NVIDIA GeForce GTX 560 Ti
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With the GeForce GTX 560 Ti NVIDIA presents the third GTX 500 card. We took a look at performance and overclocking.
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Radeon HD 4850 in CrossFire vs one Radeon
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We’ve gone through all the advantages and disadvantages of SLI and
Crossfire modes many times by now. We’ve even had an article on the
Hydra chip present on MSI motherboards, which enables AMD and NVIDIA
graphics to work in conjunction with more or less tangible results…
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AMD Radeon HD 6450 Graphics Card Review
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"Earlier in the week we took a look at AMD (and Sapphires) new midrange DirectX 11 GPU and commented at the time that the refresh of lower end parts from 5000 to 6000 series was taking some time. The 6790 filled the gap in the 6000 series at around £110 which left the sub £100 mark to populate and today we get a taste of one model that AMD has to offer in that area with a look at the 6450 which will hit retail in a couple of weeks time."
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AMD Radeon HD 6790 Review
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“AMD is adding another card to round-out their 6700 series selection: the Radeon HD 6790. It is aimed performance/upper mid-range market and will be retailing for $149. It’s supposed to lie between the 6850 and 5770/6770 in terms of performance and compete with the NVIDIA Geforce GTX 550Ti. Including all of the features common to other 6700 series cards, like 16 render back-end units, this should offer a great 1080p gaming experience for consumers."
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AMD Radeon HD6870 Review
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"If you’re remotely interested in computers, you’ll know who AMD are. It’s no surprise when you consider they’ve been around since 1969(!), so they need no introduction. Odds are that you’ll also be familiar with the Radeon brand of graphics cards, so today’s review product and company should be known to everyone."
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MSI N580GTX Twin Frozr II OC
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NVIDIA GeForce GTX 580 based graphics cards are the fastest single-GPUs in the market. On top of this, most manufacturers even select their products and offer overclocked versions with own designs and cooling solutions. Today HT4U.net presents the MSI N580GTX Twin Frozr II OC, as usual premium speed with a premium price tag.
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AMD Radeon HD 6790 Graphics Card
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"Today, AMD releases an answer to NVIDIA's GeForce GTX 550 Ti and closes the
performance gap between the low-end Radeon HD 5770 and mid-end Radeon HD
6850. The new Radeon HD 6790 is based on the cut-down Barts GPU used in the
Radeon HD 6850 cards and has the MSRP of $149."
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Sapphire HD 6670 Single Slot Low Profile Video Card Review @Hi Tech Legion
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The Sapphire 6670 HD Low Profile video card may not be so different when it comes to the technical specifications, compared to other 6670s on the market. However, the Sapphire low profile HD 6670 is a gem in its own right, being the first low profile single slot solution in its market segment. The core clock speed is set at 800MHz, while the memory speed is set at 1000Mhz. and has 1 GB of DDR5 onboard memory. The 6670 comes with 480 stream processors and a 40 nm chip. The interface includes a single HDMI, VGA connector and Dual-Link DVI input. All of the usual 6000 series features apply, such as DX 11, Eyefinity, OpenGL 4.1, UVD3, and AMD App acceleration. /"
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Gainward GeForce GTX 560 Ti 1024MB
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"Today we shall review a mid-end GeForce GTX 560 Ti graphics card from
Gainward that differs from the rest by much higher default clock rates and
more compact size."
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VisionTek Radeon HD 5770 1GB Combo Card Review
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However fascinating the entire concept behind the Radeon HD 5770 1GB Combo by Visiontek and Bigfoot Networks might be the cards mid-level performance, although enough for casual gamers and HTPC owners just won't cut it for enthusiasts and hardcore gamers.
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Sapphire HD6790
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"When it came down to the overclocking of the Sapphire HD6790, I was able to get the GPU clock speed all the way up to 1000MHz, which is about a 19% overclock on the GPU core with no voltage adjustments. I was able to get the clock speed a little bit higher, however it was not stable enough to run all of the benchmarks in the OCC benchmarking suite. The memory was a little bit more tricky to overclock on this card, I was trying to get up around 1250MHz, however anything that I set above 1235MHz was unstable and would give me artifacts on the screen, so I had to back my clocks down to 1230MHz. That is, however, about a 17% increase on the memory. Overall the overclocking of the Sapphire HD6790 was just like any other video card when it comes to the clocking with out using an voltage adjustments."
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Beginners Guides
