Radeon HD 7990
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Radeon_HD_7990
FPS System Benchmark
89 FPS
High
AMD PC game performance check Radeon HD 7990
GPU
Architecture
GCN 1.0 Malta
Process
28nm
TMUs
128
Texture Rate
256 GTexel/s
ROPs
32 (x2)
Pixel Rate
64 GPixel/s
Shader
Processing Units
4096
Driver Support
golden star golden star golden star golden star empty star
Release Price
$999.00
Compatibility
Direct X
DX 12.0
Shader
5.0
Open GL
4.4
Resolution (WxH)
2560x1600
Notebook GPU
SLI/Crossfire
Dedicated
Integrated
Memory
Memory
6144 MB
Memory Speed
1500 MHz
Memory Bus
384 Bit
Memory Type
GDDR5
Memory Bandwidth
576GB/sec
L2 Cache
768KB(x2)
Display Connectors
VGA Connection
0
DVI Connection
1
HDMI Connection
0
DisplayPort Connection
Clock Speeds
Core Speed
950 MHz
Boost Clock
1000 MHz
Power
Max Power
375 Watts
PSU
750 Watt & 50 Amps
Power Connector
2x 8-pin
Recommended Hardware
Best RAM Match
16 GB
Best Resolution
2560 x 1600
GPU Upgrade
Resolution Performance
1366x768 1600x900 1920x1080 2560x1440 3840x2160
10
10
10
8.1
6
Radeon HD 7990 Game Requirement Analysis

Overview
Radeon HD 7990 is a Dual-Graphics Solution based on the Graphics Core Next (GCN) Architecture.


Architecture
The GCN Architecture succeeds the 40nm Terascale Architecture. In addition to being produced with a 28nm Technology, the GCN Architecture adds other Technologies that allow for energy efficiency. For example, ZeroCore Power, a long idle power saving technology, allows the Graphics Cards to shut down by itself when the Monitor is turned off.
GCN also adds Improved Anisotropic Filtering, DirectX 11 Tessellation and the Partially Resident Textures (PRT) Technology, which enables future games to utilize ultra-high resolution textures with the same performance as today's small and often repetitive textures.


GPU
It equips two GPUs Codenamed Tahiti XT which together have 64 Compute Units activated and thus offer 4096 Shader Processing Units, 256 TMUs and 64 ROPs. The Central Unit is clocked at 950MHz and goes up 1000MHz, in Turbo Mode.


Memory
Each GPU accesses a 3GB frame buffer of Fast GDDR5 Memory, through a 384-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1500MHz.


Power Consumption
With a rated board TDP of 375W, it requires at least a 750W PSU with two available 8-pin connectors.


Performance
Radeon HD 7990 Competes with GeForce GTX 690 and proves to be considerably faster at resolutions over 2560x1600.


System Suggestions
Radeon HD 7990 is best suited for resolutions up to and including 2560x1600. We recommend a Very Strong Processor (Intel Core i7 Quad Core/AMD FX Eight Core) and 16GB of RAM for Optimal Performance.


Source [Pip]
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Radeon HD 7990 GPU Variants
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1 2 3 4 5
0
hamidebi's Rig
Saved at: May-03-2017
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0

hello.my gpu systems 7990 requierted what cpu for performance for 2k resoulation

0
AoAuraStiXxA's Rig
Saved at: Dec-18-2017
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23

1% better :D

1
MrSotoK's Rig
Saved at: Oct-28-2017
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5

Lol :D

-2
lion94's Rig
Saved at: Dec-18-2017
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141

nice card for 720p ultra gaming

3
aditrex's Rig
Saved at: Dec-18-2017
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347

720p ? this card runs every single game even if not cf support under 1080p on dicent settings when good cf support this is faster then even 390x but its pretty power hungry card

0
nzero4ever's Rig
Saved at: Oct-25-2017
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3

im looking for a new gpu and i could use some help, the once im potentaily thinking about buying would be the 7990, the gtx 970 or r9 390, all of them i could get for around 300 to 350 buckoronies, ty for reading :)

1
nzero4ever's Rig
Saved at: Oct-25-2017
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3

also above it says the 7990 supports dx 12 but on amds site it only says 11.2 and wierdly enough on the same page 11.1 as highest. does anybody know what the highest is ?

0
lion94's Rig
Saved at: Dec-18-2017
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141

buy hd 7990.

0
lion94's Rig
Saved at: Dec-18-2017
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141

i think it supports dx 11.2

1
EternalHaze's Rig
Saved at: Nov-23-2017
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21

GCN Architecture supports DX12, but it's more sensible to buy a newer card because of the added features

1
chombe1997's Rig
Saved at: Apr-11-2017
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229

dont know why this card is 6% slower than gtx 980 when it was 5% faster,if you re looking at the new games it works better in amd optimized ones it is only slower on nvidia optimized games and 90% of those games dont even support cfx profile

1
Starbud's Rig
Saved at: May-09-2017
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18

I know. Check this review http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_980/
The 7990 beats the 980 in nearly every game, especially at higher resolutions and this was BEFORE the Omega drivers came out

0
Pip's Rig
Saved at: Aug-03-2016
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1,456

All Graphics Cards in GD have 1920x1080 as their default rank. In that situation, GTX 980 is faster.
At 3840x2160 for example, GD shows 8.3 Score for GTX 980 and 8.5 for Radeon HD 7990 :-)

0
SARTHAK07's Rig
Saved at: Sep-04-2017
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83

Really?? With 3 Gb vram, does it beat 980 which has 4??

0
Pip's Rig
Saved at: Aug-03-2016
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1,456

3 GB per GPU is still better than 4GB in one single GPU. Much better actually!

0
chombe1997's Rig
Saved at: Apr-11-2017
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229

lol,didnt know that someone will reply to me…haahha…and look at me i bought an nvidia gpu

0
SARTHAK07's Rig
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83

So 3GB per gpu will add up to 6 GB??
Why that does not happens in CF?

0
Pip's Rig
Saved at: Aug-03-2016
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1,456

It doesn't "add up to 6GB". Each GPU Accesses a 3GB Pool and uses it individually.
It's better than one GPU rendering to a 4GB Pool

0
SARTHAK07's Rig
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83

Ok. Same happens in CF and SLI??

0
Pip's Rig
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1,456

yes, exactly

0
SARTHAK07's Rig
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83

Ok Thanks..
Everyone I asked said that 3 GB card in CF has 3 gb vram overall..
Thanks :D

-4
barbekuto's Rig
Saved at: Sep-28-2016
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-1

4% better

3
Starbud's Rig
Saved at: May-09-2017
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18

At 1080p, yes. At 1440p, no.

2
x48273x's Rig
Saved at: Nov-07-2017
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-3

most of people playing games on 1080p not 1440p or 4k
http://www.game-debate.com/news/?news=17743&game=Wolfenstein:%20The%20Old%20Blood&title=Pixel%20Perfection%20-%20Is%204K%20Screen%20Res%20Gaming%20Good%20Enough%20On%20A%20Single%20GPU

1
x48273x's Rig
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-3

i use dsr

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SARTHAK07's Rig
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83

on games with cf profile, it would be better on 1080p as well :D

-1
inhmayz's Rig
Saved at: Sep-08-2017
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0

yay 21% worse lol

-1
kibber440's Rig
Saved at: Oct-30-2017
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53

Hooray!

0
Komodo's Rig
Saved at: Dec-16-2017
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19

So… this is dual chip card…. but which one ??? Titan Z is 2x Titan Black… and this one is ? anybody knows ?

0
Unknown3100's Rig
Saved at: Apr-25-2016
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4

I think 2x7970 but 7990 still better than 7970 crossfire :|

0
Komodo's Rig
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yea… figured that out so i was not sure if it was 2x 7970. Probably cos its OC-ed. Thx buddy….

0
Unknown3100's Rig
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4

I didn't know that it is 30% better than a GTX 770 :@

0
Noraiman's Rig
Saved at: Feb-12-2017
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11

put your card in sli. you will even surpass 980 and 780 ti. Not much though, maybe 20-30 fps or so. You technically have 980 or 780 ti super duper clocked.

0
Noraiman's Rig
Saved at: Feb-12-2017
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11

Believe me. Because games are not that demanding. 580 in sli will play games in max settings at 1080p for at least next 2 or 3 years. Just look at PS4 or Xbone.

1
Unknown3100's Rig
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4

Will have a look near 1 or 2 years, but at the moment my gpu can max the games i currently play . So no need atm :P

1
Nameless1988's Rig
Saved at: Jul-01-2015
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51

I agree with Unknown3100! i'm a gtx770 owner too! great card! +1 for you bro!!

0
Unknown3100's Rig
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well , there was no need of it because i haven't done anything which deserves it, but still THANKS ! :D

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REXcores's Rig
Saved at: Nov-15-2014
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2

This is a kind of my card's big brother. It is a far uodrade from it. Wow preformance of this one very good. My card is ''only'' 377% worse. It means a BIG difference. If you have this one you never have to buy another one.

0
PCGamer4850's Rig
Saved at: Nov-30-2017
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it already dies at 4K

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Release period
23-Apr-2013
10
Radeon HD 7990 vs Avg. AAA Game System Requirements
Avg. AAA Recommended Requirements
CPU
0%
Graphics Card
36%
RAM
10GB
0%
VS
VS
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Radeon HD 7990 Extras
View Compatible Hardware PC Builder