Here is a quick look and some tests of the new AMD Kaveri APU's, I have here the top end A10-7850K and lower A10-7700K.





In the box is your warranty guide, case sticker and small heatsink+fan with pre-applied paste.


Both these APU's are black editions and have an unlocked multiplier as denoted by the "K" in their model name and feature four new Steamroller cores and GCN IGP gfx.

A10-7700K specs,

Core speed - 3500MHz
Turbo speed -3800MHz


MMX instructions
SSE / Streaming SIMD Extensions
SSE2 / Streaming SIMD Extensions 2
SSE3 / Streaming SIMD Extensions 3
SSSE3 / Supplemental Streaming SIMD Extensions 3
SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4
SSE4a
AES / Advanced Encryption Standard instructions
ABM / Advanced Bit Manipulation
AVX / Advanced Vector Extensions
BMI1 / Bit Manipulation instructions 1
F16C / 16-bit Floating-Point conversion instructions
FMA3 / 3-operand Fused Multiply-Add instructions
FMA4 / 4-operand Fused Multiply-Add instructions
TBM / Trailing Bit Manipulation instructions
XOP / eXtended Operations instructions
AMD64 / AMD 64-bit technology
EVP / Enhanced Virus Protection
Turbo Core 3.0 technology

Radeon R7 series IGP
Number of shader cores 384
Core speed 720MHz

Click to expand...

A10-7850K


Core speed - 3700MHz
Turbo speed -4000MHz


MMX instructions
SSE / Streaming SIMD Extensions
SSE2 / Streaming SIMD Extensions 2
SSE3 / Streaming SIMD Extensions 3
SSSE3 / Supplemental Streaming SIMD Extensions 3
SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4
SSE4a
AES / Advanced Encryption Standard instructions
ABM / Advanced Bit Manipulation
AVX / Advanced Vector Extensions
BMI1 / Bit Manipulation instructions 1
F16C / 16-bit Floating-Point conversion instructions
FMA3 / 3-operand Fused Multiply-Add instructions
FMA4 / 4-operand Fused Multiply-Add instructions
TBM / Trailing Bit Manipulation instructions
XOP / eXtended Operations instructions
AMD64 / AMD 64-bit technology
EVP / Enhanced Virus Protection
Turbo Core 3.0 technology

Radeon R7 series IGP
Number of shader cores 512
Core speed 720MHz

Click to expand...

Below are CPU screenshots of these two new APU's and a previous generation A10-5800K (Trinity) APU which uses Piledriver cores at their maximum turbo frequency..



*Ignore the 0.4v Vcore of the A10-7700K as I think I grabbed that screen as it was about to throttle down under Cool 'n' Quiet.

Test setup.

A10-5800K
A10-7700K
A10-7850K
Kingston HyperX (2x4GB) 2400MHz RAM
Gigabyte A88X Sniper
Kingston HyperX 240GB SSD (RAID0)
Catalyst 13.35 beta17 drivers.
Windows 8.1

Click to expand...

First test is CPU-Z at stock speeds.




Next up are some games,

BattleField 4,

•1920x1080 Medium Preset​

•1680x1050 Medium Preset​

Hitman Absolution,

•1920x1080 High preset​

•1680x1050 Medium Preset​

Bioshock Infinite,

•1920x1080 High Preset​

•1680x1050 Medium Preset​

Tomb Raider,

•1920x1080 High Preset​

•1680x1050 Medium Preset​

Click to expand...

One thing to note is that I can test Bioshock a thousand times and the max fps report varies constantly, the minimum and average fps remain constant.


Next are some synthetic benchmarks,

For Unigine Heaven4.0 and Valley I used the same settings as used in the forum threads found here,
http://forums.overclockers.co.uk/showthread.php?t=18487976
http://forums.overclockers.co.uk/showthread.php?t=18489026

Very stressful settings for a little APU to cope with.






Next is 3Dmark Firestrike, the full benchmark can be found here.




Next is Asus Realbench2.0 which can be found here.












X264 was ran, you can find this benchmark here.




PCMark 07,




Catzilla 1.1 was next up running at 720p from Here.




Cinebench R11.5






Cinebench R15






3D mark 11,




PC Mark08,

Overclocking.

Using the Snipers BIOS I managed to get the A10-7850K to a stable 4.4GHz by adding +0.054v to the Vcore and setting LLC to medium.

Of other note is that to get the A10-7700K to work perfectly with the RAM at 2400MHz it required +0.036v adding to the north bridge voltage, the A10-5800K and A10-7850K required no such adjustments.

Click to expand...

Thanks to Ethermaster for the graphs and banner.

do some x264 encoding tests please.

clocka said:

do some x264 encoding tests please.

Click to expand...

I have, look at the charts.

stulid said:

I have, look at the charts.

Click to expand...

i mean proper benchmarks, 720p and 1080p and compare it to haswell versions of pentium, core i3 and core i5.

clocka said:

i mean proper benchmarks, 720p and 1080p and compare it to haswell versions of pentium, core i3 and core i5.

Click to expand...

You buy me haswell versions of the pentium and i3 etc then I will.

This is the cTDP function, allows you to limit the APU to 45W or 65W.

nice, what are cpu and gpu frequencies when you lower it to 45w?

Thanks Stulid

A few clock for clock comparisons to Lynfield / Bloomfield @ 3.7Ghz (HT off, just 4 threads like Kaveri) keep in mind that this i7 930 is running a 900Mhz overclock at 3.7Ghz.

SuperPI

Kaveri: 1MB 17.922
Bloomfield: 1MB 11.000



X264FHD

Kaveri: 13.16 FPS
Bloomfield: 15.4 FPS



Cinebench R15

Kaveri: 92 SC
Bloomfield: 112 SC

Kaveri: 318 MC
Bloomfield: 424 MC



wPrime 2.10



3DMark Firestrike CPU Physics http://www.3dmark.com/3dm/2186342

Bloomfield: 6578

3DMark11 CPU Physics http://www.3dmark.com/3dm11/7810939

Bloomfield: 6062

Done the Cinebench comparisons wrong there Humbug.

I like Stulid's charts, always easy to read.
Can it get any higher for benching? Or was 4.4GHZ the max you felt comfortable with?

Martini1991 said:

Can it get any higher for benching? Or was 4.4GHZ the max you felt comfortable with?

Click to expand...

That's a value it passed everything at.

It can do 4.5Ghz on some tests but then freeze up during Realbench.

Maybe more Vcore may help, but I ain't putting a stupid value into the BIOS.

clocka said:

nice, what are cpu and gpu frequencies when you lower it to 45w?

Click to expand...

This I can do for you,

Its switching between 3GHz,



To 3.5Ghz,



Vcore according to CPU-Z has taken a drop also.

Fixed. thanks Martin.

stulid said:

That's a value it passed everything at.

It can do 4.5Ghz on some tests but then freeze up during Realbench.

Maybe more Vcore may help, but I ain't putting a stupid value into the BIOS.

Click to expand...

Fair enough, especially on this process currently, who knows what they can do yet.

humbug said:

Fixed. thanks Martin.

Click to expand...

It's fair to say AMD haven't reached Lynnfield IPC (Hell, I don't even think they've managed their own original 10% performance improvement quota as 6800K's will clock better than this 7850K's and knack them, that said, they will have meant stock) let alone AMD's own slides and upto 20% IPC improvements!, what'd it manage that on? One or two FPU light tasks?

But then in other ways, it's made some really good increases (As Stulids results show), really bummed about the IGP bandwidth however.

Either way, when it replaces the A10 6800K's price point, it's still a cracking product for what it is.

Very good read and review.
+1 stulid!

C:\AMD\AMD_LiteCoin_13.35.1001_Beta1_Win8.1_Win7_Jan13_2014

Wonder what this does

What, where did that come from ^^^^ ?????

Martini1991 said:

Fair enough, especially on this process currently, who knows what they can do yet.



It's fair to say AMD haven't reached Lynnfield IPC (Hell, I don't even think they've managed their own original 10% performance improvement quota as 6800K's will clock better than this 7850K's and knack them, that said, they will have meant stock) let alone AMD's own slides and upto 20% IPC improvements!, what'd it manage that on? One or two FPU light tasks?

But then in other ways, it's made some really good increases (As Stulids results show), really bummed about the IGP bandwidth however.

Either way, when it replaces the A10 6800K's price point, it's still a cracking product for what it is.

Click to expand...

Its really disappointing TBH, they have concentrated on GPU Parallel compute performance, its unbeatable for that as an APU, i'm sure the power consumption is also down significantly, its a great HTPC chip, but thats about it.

Its no good for you and me with the CPU performance still lagging so far behind Intel its useless for anyone wanting it for gaming.

It seems AMD have completely given up on Enthusiast Gaming level CPU's.
No FX SR chips in sight, even if there was, they would be what, 5% faster? the only place we can turn to is expensive Intel CPU's, thats not good for competition, not good at all.

How does it run BF4 at 720p? I'm thinking of putting one together for a mate.

kitch9 said:

How does it run BF4 at 720p? I'm thinking of putting one together for a mate.

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I can do that, give a few mins (more like 30)

stulid said:

I can do that, give a few mins (more like 30)

Click to expand...

Nice, thanks. These apus are only really good for 720p really I think with the limited bandwidth they have.

The thing is, the CPU and the GPU are up to 1080, it's just the memory bandwidth.
It's a bottlenecked GPU to be frank, I just don't get it..