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AMD Radeon HD 7990

Graphics Processor
Malta x2
Cores
2048 x2
TMUs
128 x2
ROPs
32 x2
Memory Size
3 GB x2
Memory Type
GDDR5
Bus Width
384 bit x2
GPU Chip
GPU
PCB Front
PCB Front
PCB Back
PCB Back
The Radeon HD 7990 was a enthusiast-class graphics card by AMD, launched in April 2013. Built on the 28 nm process, and based on the Malta graphics processor, in its Malta XT variant, the card supports DirectX 12.0. The Malta graphics processor is a large chip with a die area of 365 mm² and 4,313 million transistors. Radeon HD 7990 combines two graphics processors to increase performance. It features 2048 shading units, 128 texture mapping units and 32 ROPs per GPU. AMD has placed 6,144 MB GDDR5 memory on the card, which are connected using a 384-bit memory interface per GPU (each GPU manages 3,072 MB). The GPU is operating at a frequency of 950 MHz, which can be boosted up to 1000 MHz, memory is running at 1500 MHz.
Being a dual-slot card, the AMD Radeon HD 7990 draws power from 2x 8-pin power connectors, with power draw rated at 375 W maximum. Display outputs include: 1x DVI, 4x mini-DisplayPort. Radeon HD 7990 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card measures 307 mm in length, and features a dual-slot cooling solution. Its price at launch was 999 US Dollars.

Graphics Processor

GPU Name
Malta
GPU Variant
Malta XT
(215-0849026)
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
4,313 million
Die Size
365 mm²

Graphics Card

Release Date
Apr 24th, 2013
Generation
Southern Islands
(HD 7900)
Production
End-of-life
Launch Price
999 USD
Bus Interface
PCIe 3.0 x16
Reviews
37 in our database

Relative Performance

2%
GeForce 210
3%
GeForce 9400 GT
3%
Radeon HD 4550
4%
Radeon HD 5450
5%
Radeon HD 6450
5%
GeForce GT 520
7%
GeForce GT 220
9%
GeForce GT 430
9%
Radeon HD 5570
10%
Radeon HD 4670
10%
GeForce GT 440
10%
GeForce GT 240
12%
GeForce 9600 GT
12%
Radeon HD 5670
13%
GeForce GT 640
14%
GeForce 9800 GT
14%
Radeon HD 6670
15%
Radeon HD 4830
16%
Radeon HD 4770
17%
Radeon HD 4850
17%
GeForce GTS 250
18%
GeForce GTS 450
18%
Radeon HD 5750
21%
Radeon HD 7750
21%
Radeon HD 5770
21%
GeForce GTX 260
22%
Radeon HD 4870
22%
Radeon Vega 8
22%
GeForce GTX 550 Ti
22%
GeForce GTX 650
23%
Radeon HD 5830
25%
Radeon HD 6790
25%
Radeon HD 4890
26%
GeForce GTX 460
26%
Radeon RX Vega 11
26%
GeForce GT 1030
27%
GeForce GTX 275
27%
Radeon HD 7770 GHz Edition
27%
GeForce GTX 280
27%
GeForce GTX 465
29%
Radeon HD 6850
29%
GeForce GTX 285
31%
Radeon HD 5850
32%
GeForce GTX 650 Ti
32%
Radeon HD 7790
33%
Radeon RX 550
33%
GeForce GTX 470
34%
Radeon HD 6870
37%
Radeon HD 5870
38%
GeForce GTX 560 Ti
38%
Radeon HD 4870 X2
39%
GeForce GTX 750 Ti
39%
Radeon HD 6950
40%
GeForce GTX 295
41%
GeForce GTX 650 Ti Boost
41%
Radeon HD 7850
42%
GeForce GTX 480
44%
Radeon HD 6970
45%
Radeon R7 265
45%
Radeon R7 370
45%
Radeon RX 560
45%
GeForce GTX 660
46%
GeForce GTX 570
49%
GeForce GTX 950
50%
Radeon HD 7870 GHz Edition
51%
Radeon R9 270X
52%
GeForce GTX 660 Ti
52%
GeForce GTX 580
52%
GeForce GTX 1050
52%
Radeon HD 7950
53%
Radeon RX 460
53%
Radeon HD 5970
55%
GeForce GTX 760
59%
GeForce GTX 670
61%
GeForce GTX 960
62%
Radeon R9 380
62%
Radeon R9 285
63%
Radeon HD 7970
64%
GeForce GTX 680
65%
GeForce GTX 1050 Ti
67%
GeForce GTX 770
68%
Radeon HD 6990
70%
Radeon R9 280X
71%
GeForce GTX 590
71%
Radeon HD 7970 GHz Edition
79%
GeForce GTX 780
87%
Radeon RX 470
88%
Radeon R9 290
94%
Radeon R9 390
94%
Radeon R9 290X
96%
GeForce GTX 970
97%
GeForce GTX TITAN
98%
Radeon RX 570
98%
GeForce GTX 780 Ti
100%
Radeon R9 390X
100%
Radeon HD 7990
100%
Radeon RX 480
101%
GeForce GTX 690
107%
Radeon RX 580
109%
GeForce GTX 980
110%
GeForce GTX 1060 6 GB
110%
Radeon R9 FURY
111%
Radeon RX 590
121%
Radeon R9 295X2
124%
Radeon R9 FURY X
126%
GeForce GTX 980 Ti
135%
GeForce GTX TITAN X
142%
GeForce GTX 1660 Ti
142%
GeForce GTX 1070
149%
Radeon RX Vega 56
161%
GeForce GTX 1070 Ti
165%
Radeon RX Vega 64
165%
GeForce RTX 2060
170%
GeForce GTX 1080
195%
Radeon VII
195%
GeForce RTX 2070
204%
TITAN X Pascal
209%
GeForce GTX 1080 Ti
226%
GeForce RTX 2080
262%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080

Clock Speeds

GPU Clock
950 MHz
Boost Clock
1000 MHz
Memory Clock
1500 MHz
6000 MHz effective

Memory

Memory Size
3 GB
Memory Type
GDDR5
Memory Bus
384 bit
Bandwidth
288.0 GB/s

Render Config

Shading Units
2048
TMUs
128
ROPs
32
Compute Units
32
L1 Cache
16 KB (per CU)
L2 Cache
768 KB

Theoretical Performance

Pixel Rate
32.00 GPixel/s
Texture Rate
128.0 GTexel/s
FP32 (float) performance
4.096 TFLOPS
FP64 (double) performance
1,024 GFLOPS (1:4)

Board Design

Slot Width
Dual-slot
Length
12.1 inches
307 mm
TDP
375 W
Outputs
1x DVI
4x mini-DisplayPort
Power Connectors
2x 8-pin
Board Number
C476-37

Graphics Features

DirectX
12.0 (11_1)
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.101
Shader Model
5.1

Card Notes

Reference HD 7990

Malta GPU Notes

Architecture Codename: Southern Islands
Chip Variant: Tahiti
CLRX Version: GCN 1.0
Graphics/Compute: GFX6 (gfx600)
Display Core Engine: 6.0
Unified Video Decoder: 3.2
Video Compression Engine: 1.0

Exact same as Tahiti, just sorted for low leakage
Exact Transistor Count: 4,312,711,873

Retail boards based on this design (15)

Name GPU Clock Boost Clock Memory Clock Other Changes
AMD Radeon HD 7990 950 MHz 1000 MHz 1500 MHz
ASUS HD 7990 950 MHz 1000 MHz 1500 MHz
Club 3D HD 7990 XT 950 MHz 1000 MHz 1500 MHz
ColorFire HD 7990 950 MHz 1000 MHz 1500 MHz
Diamond HD 7990 950 MHz 1000 MHz 1500 MHz
GIGABYTE HD 7990 950 MHz 1000 MHz 1500 MHz
HIS HD 7990 950 MHz 1000 MHz 1500 MHz
MSI HD 7990 950 MHz 1000 MHz 1500 MHz
PowerColor HD 7990 V2 950 MHz 1000 MHz 1500 MHz
Sapphire HD 7990 950 MHz 1000 MHz 1500 MHz
VisionTek HD 7990 950 MHz 1000 MHz 1500 MHz
VTX3D HD 7990 V2 950 MHz 1000 MHz 1500 MHz
XFX Triple D HD 7990 950 MHz 1000 MHz 1500 MHz
XFX Triple D HD 7990 950 MHz 1000 MHz 1500 MHz 12.2 inches/310 mm, Triple-slot
Zalman HD 7990 950 MHz 1000 MHz 1500 MHz