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AMD Radeon HD 7990

Malta
Graphics Processor
2048 x2
Cores
128 x2
TMUs
32 x2
ROPs
3072 MB x2
Memory Size
GDDR5
Memory Type
384 bit x2
Bus Width
AMD Radeon HD 7990 Image AMD Malta Image
The Radeon HD 7990 was a high-end 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.
We recommend the AMD Radeon HD 7990 for gaming with highest details at resolutions up to, and including, 1920x1080.
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 PCIe 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
Process Size
28 nm
Transistors
4,313 million
Die Size
365 mm²

Graphics Card

Released
Apr 24th, 2013
Production Status
End-of-life
Launch Price
999 USD
Bus Interface
PCIe 3.0 x16

Relative Performance

2%
3%
3%
4%
5%
5%
7%
9%
9%
10%
10%
10%
12%
12%
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18%
21%
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25%
25%
26%
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27%
27%
29%
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32%
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34%
37%
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53%
53%
55%
59%
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67%
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71%
79%
87%
88%
94%
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96%
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98%
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100%
100%
Radeon HD 7990
101%
109%
110%
110%
112%
122%
125%
131%
135%
148%
154%
167%
167%
174%
204%
209%
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
3072 MB x2
Memory Type
GDDR5
Memory Bus
384 bit x2
Bandwidth
288.0 GB/s x2

Render Config

Shading Units
2048 x2
TMUs
128 x2
ROPs
32 x2
Compute Units
32 x2

Theoretical Performance

Pixel Rate
32.00 GPixel/s x2
Texture Rate
128.0 GTexel/s x2
FP32 (float) performance
4,096 GFLOPS x2
FP64 (double) performance
1,024 GFLOPS x2 (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

Graphics Features

DirectX
12.0 (11_1)
OpenGL
4.5
OpenCL
1.2
Vulkan
1.1.73
Shader Model
5.1

Reviews

Our review database contains 37 reviews of the Radeon HD 7990.

Card Notes

Reference HD 7990

Malta GPU Notes

Chip Variant: Tahiti
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 Triple-slot
Zalman HD 7990 950 MHz 1000 MHz 1500 MHz