In recent months and quarters I have had discussions about why CPU manufacturers offer a number of processors each separated by $7 and 100 MHz. The obvious answer (but not always the logical answer) is to cater for what the customer wants by overloading them with choice. As a result, sometimes direct CPU comparisons can be difficult, as it requires testing every CPU released. Thankfully for AMD’s Kaveri, todays tests of the A10-7700K and A6-7400K plugs a few holes in our AMD benchmark numbers to allow those comparisons.

The Information

We recently reviewed the A8-7650K, a newer processor having been released at the turn of 2015, and thus a lot of the introduction on this page is going to mirror what we stated in that review, particularly when it comes to pricing, comparisons and the processor stack as a whole. We requested both the A10-7700K and the A6-7400K to fill in some of the gaps in our testing, though we do recognize they were released in mid-2014. This is unfortunately part of AMD’s Kaveri strategy – releasing one or two different SKUs each quarter to cover parts of the market. In this case, the A10-7700K is the lowest A10 part while the A6-7400K is one of the few single module (dual thread) available.

AMD Kaveri Lineup
  A10-
7850K
A10-
7800
A10-
7700K
A8-
7650K
A8-
7600
 X4
860K
A6-
7400K
Price $134 $131 $120 $104 $89 $85 $64
Modules 2 2 2 2 2 2 1
Threads 4 4 4 4 4 4 2
Core Freq. (GHz) 3.7-4.0 3.5-3.9 3.4-3.8 3.3-3.8 3.1-3.8 3.7-4.0 3.5-3.9
Compute Units 4+8 4+8 4+6 4+6 4+6 4+0 2+4
Streaming
Processors
512 512 384 384 384 N/A 256
IGP Freq. (MHz) 720 720 720 720 720 N/A 756
TDP 95W 65W 95W 95W 65W 95W 65W
DRAM
Frequency
2133 2133 2133 2133 2133 1866 1866
L2 Cache 2x2MB 2x2MB 2x2MB 2x2MB 2x2MB 2x2MB 1MB

The A10-7700K differs by having a total of 10 compute units compared to the other A10 processors which have 12. This means that it has a high CPU and GPU speed, but fewer GPU cores to play with compared to the A10-7800 or A10-7850K. Compared to the A10-7800 also, we are dealing with the A10-7700K as a 95W part at $120, rather than a 65W part, but the A10-7700K is more geared towards overclocking which we cover later in the review.

The A6-7400K sits at the bottom of the stack. That position and represents how AMD bins its processors, as the A6 still has all the same transistors. When the dies come out and are tested, if one of the modules is not working correctly it can be fused off from the rest of the processor and sold as a lower end part. The rest of the CPU is fine as represented by the high CPU frequencies, and it comes with a TDP of 65W at a low $64 price. The question becomes whether having only a single module (and two threads) is enough for it to power the 256 SPs in the graphics or if the CPU has the power for discrete cards now that more games are multithreaded. That being said, pairing it with a $70 R7 240 discrete card which has 320 SPs should, on paper at least, afford a good bump in graphics performance when in dual graphics mode for titles that can take advantage of it.

Competition and Market

For every tech product that comes out on the market, price is everything. A good product can become super obscure by virtue of a high price, or an overtly mediocre product might become interesting if it strikes a chord at a low price point. Then there is always a question of competition, understanding what a user can get at what price and whether there are features that make the experience worthwhile.

The downside for reviews at least is because in reality there are two prices for everything. The launch price dictates the initial interest, but subsequent price cuts over time can help drive sales. When we write a review, our thoughts are encapsulated at that specific moment in time, so if the price drops or it goes on sale, sometimes the level of recommendation might be skewed.  In our last review, we experimented with this. We produced a table of AMD vs Intel at price points in the market:

CPU/APU Comparion
AMD Kaveri Amazon Price on 5/27
 
Intel Haswell
    $236
 
i5-4690K
(4C/4T, 88W)
3.5-3.9 GHz
HD 4600
    $214 i5-4590
(4C/4T, 84W)
3.3-3.7 GHz
HD 4600
    $189 i5-4460
(4C/4T, 84W)
3.2-3.4 GHz
HD 4600
    $138 i3-4330
(2C/4T, 54W)
3.5 GHz
HD 4600
3.7-4.0 GHz
512 SPs
A10-7850K
(2M/4T, 95W)
$134    
3.5-3.9 GHz
512 SPs
A10-7800
(2M/4T, 65W)
$131    
3.4-3.8 GHz
384 SPs
A10-7700K
(2M/4T, 95W)
$120 i3-4130
(2C/4T, 54W)
3.4 GHz
HD 4400
3.3-3.8 GHz
384 SPs
A8-7650K
(2M/4T, 95W)
$104    
    $94 Pentium G3430
(2C/2T, 53W)
3.3 GHz
HD (Haswell)
3.1-3.8 GHz
384 SPs
A8-7600
(2M/4T, 65W)
$89    
3.7-4.0 GHz
No IGP
X4 860K
(2M/4T, 95W)
$85    
    $70 Pentium G3258
(2C/2T, 53W)
3.2 GHz
HD (Haswell)
3.5-3.9 GHz
256 SPs
A6-7400K
(1M/2T, 65W)
$64    
    $44 Celeron G1840
(2C/2T, 53W)
2.8 GHz
HD (Haswell)

This shows what is competing against what specifically at this time frame. One issue to consider is representing this in our benchmarking graphs. In our last review, the A8-7650K, we started quoting the pricing  with the processors. Our graphs are not dynamic, and if we used the current price at the time of review, the later the review is arguably the better the recommendation. In that regard we decided to use the launch price of a product for our graphs to maintain a level of consistency.

What pricing we quote aside, looking at recent prices in the table above gives competition for both the A6-7400K and the A10-7700K. The A6-7400K sits below the Pentium G3258 which we reviewed last year and is Intel’s low end overclocking processor. The A10-7700K sits more against the i3-4130 at $120. For our comparisons in this review, we have numbers for the G3258 but the nearest Intel CPUs to the A10-7700K we have are the i3-4130T ($138) and the i3-4330 ($128).

All our results, both past and present, can be found in our online database Bench. As we test CPUs in the future, look out for those results as well.

Test Setup

We are using a new testing regime, starting from May 2015 including five recent games on different AMD and NVIDIA graphics cards from $70 to $560. A detailed breakdown of our testing can be found here, although for this review we will present a few of the more poignant tests while all the results can be found in Bench.

Test Setup
Processor AMD A10-7700K  2M / 4T 3.4 GHz Base,
3.8 GHz Turbo
95W
AMD A6-7400K 1M / 2T 3.5 GHz Base,
3.9 GHz Turbo
65W
Motherboard GIGABYTE F2A88X-UP4
MSI A88X-G45 Gaming
DRAM G.Skill RipjawsZ 4x4GB DDR3-2133 9-11-10
Low End GPU Integrated
ASUS R7 240 2GB DDR3
Dual Graphics with R7 240
Mid Range GPU MSI R9 285 Gaming 2GB
MSI GTX 770 Lightning 2GB
High End GPU MSI R9 290X Gaming LE 4GB
ASUS GTX 980 Strix 4GB
Power Supply OCZ 1250W Gold
Storage Drive Crucial MX200 1TB
Operating System Windows 7.1 64-bit, Build 7601
CPU Cooler Cooler Master Nepton 140XL CLC

Many thanks to...

We must thank the following companies for kindly providing hardware for our test bed:

Thank you to AMD for providing us with the R9 290X 4GB GPUs.
Thank you to ASUS for providing us with GTX 980 Strix GPUs and the R7 240 DDR3 GPU.
Thank you to ASRock and ASUS for providing us with some IO testing kit.
Thank you to Cooler Master for providing us with Nepton 140XL CLCs.
Thank you to Corsair for providing us with an AX1200i PSU.
Thank you to Crucial for providing us with MX200 SSDs.
Thank you to G.Skill and Corsair for providing us with memory.
Thank you to MSI for providing us with the GTX 770 Lightning GPUs.
Thank you to OCZ for providing us with PSUs.
Thank you to Rosewill for providing us with PSUs and RK-9100 keyboards.

AMD A10-7700K and AMD A6-7400K Overclocking

For the A10-7700K, we hit 4.4 GHz relatively easily with a small bump in voltage, however as we pushed higher frequency it required even more voltage to compensate which led to a quick route to overheating.

The A6-7400K starts with a high base frequency to begin with, but due to the disabled module on board it might have fewer heat generating areas and it could be construed that it might overclock more. In our testing, we had to change motherboards and the MSI has fewer overclocking options than the GIGABYTE, allowing only an offset voltage setting.

Office and Professional Performance (Windows and Linux)
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  • FlushedBubblyJock - Tuesday, June 2, 2015 - link

    They're the space age ion cuntress shields, warriors, protecting the helpless and innocent from evil, cockblockers in their own minds, our heroes... Reply
  • zodiacfml - Friday, May 29, 2015 - link

    Can't wait for HBM. Once they (AMD) have it on their APUs, Intel will have an equivalent shortly. Reply
  • ES_Revenge - Saturday, May 30, 2015 - link

    Ugh, like the 7650K, these CPUs are both pointless nonsense.

    Like the 7650K v. the 7600, the 7700K uses more power, has a higher price (significantly this time--35%!) and offers very little (if any) performance increase over the 7600. (Just said this a week or two ago in the 7650K review, btw.) Plus the 7700K has no business even having the A10 name as it has the same 384SP as it's A8 siblings.

    The A6-7400K should be more like $55, not $64. That's all I'm going to say there.

    Fail and fail again :(

    The stars here (if there are any in AMD's lineup) are the A8-7600 and the A10-7850K. The 7600 'cause it's 65W TDP and offers nearly identical performance to the 7650K which is 17% more and this new "A10" 7700K which is 35% more. Less power, same performance, less price? Hmm, what seems like the better CPU here? The foolishness-that-is the "A10" 7700K or the A8-7600? Not a tough decision.

    I mean is this AMD's whole idea here? "Oh hey let's release two CPUs that are clearly worse value and that way we'll boost 7600 sales."??? LOL.

    The 7850K offers the most performance and costs just a few bucks more than the 7800 so that's enough reasoning for me to make it the other stand-out.

    The rest of these CPUs are all nonsense; and, because AMD is so far behind Intel in the CPU dept. not even the "stars" of AMD make much sense to most buyers. Sad. More sad is releasing CPUs that are simply pointless.
    Reply
  • ES_Revenge - Saturday, May 30, 2015 - link

    Oh and BTW don't get me started on the X4 860K. Save $4.00 ($4?! Really?) and *don't* get a GPU yet also have a higher possible TDP? WTF? Uh yeah it's "unlocked" but you're not getting much performance unless you're able to have a 1Ghz OC on the thing, but that's just going to cost you in more power/heat. X4 860K, for $84?....Worst. Idea. Ever. Reply
  • HomingTk - Monday, April 11, 2016 - link

    thinking of getting a gaming pc (intended for gaming) with a AMD A10 7700k processor. From reaing the chat I don't know what to think about it. Considering there is possibly another option AMD R7 7650K what should I do? Reply

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