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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
I/O
Top
Rear
PCB Front
PCB Back
Recommended Gaming Resolutions:
- 1600x900
- 1920x1080
- 2560x1440
The Radeon HD 7990 was an enthusiast-class graphics card by AMD, launched on April 24th, 2013. Built on the 28 nm process, and based on the Malta graphics processor, in its Malta XT variant, the card supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_1, which can be problematic with newer DirectX 12 titles. 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 paired 6 GB GDDR5 memory with the Radeon HD 7990, 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 (6 Gbps effective).
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 1.2. Radeon HD 7990 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card's dimensions are 304 mm x 106 mm x 38 mm, and it features a dual-slot cooling solution. Its price at launch was 999 US Dollars.
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 1.2. Radeon HD 7990 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card's dimensions are 304 mm x 106 mm x 38 mm, and it features a dual-slot cooling solution. Its price at launch was 999 US Dollars.
Graphics Processor
Graphics Card
- Release Date
- Apr 24th, 2013
- Generation
-
Southern Islands
(HD 7900)
- Predecessor
- Northern Islands
- Successor
- Sea Islands
- Production
- End-of-life
- Launch Price
- 999 USD
- Bus Interface
- PCIe 3.0 x16
- Reviews
- 37 in our database
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for RTX 3080 and faster.
Clock Speeds
- Base Clock
- 950 MHz
- Boost Clock
- 1000 MHz
- Memory Clock
-
1500 MHz
6 Gbps 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)
- 4.096 TFLOPS
- FP64 (double)
- 1,024.0 GFLOPS (1:4)
Board Design
- Slot Width
- Dual-slot
- Length
- 304 mm
12 inches
- Width
- 106 mm
4.2 inches
- Height
- 38 mm
1.5 inches
- TDP
- 375 W
- Suggested PSU
- 750 W
- Outputs
- 1x DVI
4x mini-DisplayPort 1.2
- Power Connectors
- 2x 8-pin
- Board Number
- 109-C47637-00A_02
Graphics Features
- DirectX
- 12 (11_1)
- OpenGL
- 4.6
- OpenCL
- 2.1 (1.2)
- Vulkan
- 1.2.175
- Shader Model
- 6.5 (5.1)
Card Notes
| Reference HD 7990 |
Malta GPU Notes
| Generation: Southern Islands Desktop Variant: Tahiti / New Zealand Graphics/Compute: GFX6 (gfx600) Display Core Engine: 6.0 Unified Video Decoder: 3.2 Video Compression Engine: 1.0 CLRX: GCN 1.0 Exact same as Tahiti, just sorted for low leakage Exact Transistor Count: 4,312,711,873 Latest Drivers: Windows XP / 8: Catalyst Software Suite 14.4 Windows Vista : Catalyst Software Suite 13.12 Windows 7: 32-bit: Radeon Software: Adrenalin Edition 18.9.3 64-bit: AMD Software: Adrenalin Edition 22.6.1 Windows 8.1: 32-bit: Radeon Software: Crimson ReLive Edition 16.12.2 / 17.1.2 64-bit: Radeon Software: Crimson ReLive Edition 17.4.4 / 17.7.1 Windows 10: 32-bit: Radeon Software: Adrenalin Edition 18.9.3 64-bit: AMD Software: Adrenalin Edition 22.6.1 |
Retail boards based on this design (15)
| Name | GPU Clock | Boost Clock | Memory Clock | Other Changes |
|---|---|---|---|---|
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | ||
| 950 MHz | 1000 MHz | 1500 MHz | 310 mm/12.2 inches, Triple-slot | |
| 950 MHz | 1000 MHz | 1500 MHz |
Jul 18th, 2025 19:06 CDT
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