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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesThe Radeon HD 7990 was AMD’s $999 dual-GPU flagship, launched on April 24, 2013, as a bid for the top tier of PC gaming. It put two GPUs and 6 GB of GDDR5 on one board, but that design brought trade-offs in memory use, power, size and game-by-game scaling. Its launch-era ambition makes it a notable piece of gaming hardware history; AMD now classifies it as legacy hardware, so it is not a straightforward modern gaming recommendation.
What the Radeon HD 7990 was
AMD announced the official Radeon HD 7990 on April 24, 2013, with a US launch MSRP of $999. The company positioned it as a top-end gaming card and called it the world’s fastest; that was AMD’s launch claim, not an independent finding. The announcement also compared the card with Nvidia’s GeForce GTX 690. AMD’s launch release is the source for the date, price and its performance claims.
The concept was straightforward: place two GPUs on one graphics card rather than asking a buyer to install two separate cards. That promised flagship-class performance in a single-board setup, but it did not make the two processors behave like one GPU in every game. Performance depended on software support and how well a title used both processors.
Key specifications and design details
| Feature | Radeon HD 7990 |
|---|---|
| GPUs | Two on one board |
| Memory | 6 GB GDDR5 total, allocated as 3 GB per GPU |
| Core clock | 1 GHz, as reported by TechSpot’s 2013 review |
| Card length | 30 cm (about 12 inches), as reported by TechSpot’s 2013 review |
| US launch MSRP | $999, announced by AMD on April 24, 2013 |
The memory figure needs care: the two 3 GB pools are not a single unified 6 GB frame buffer available to one rendering workload. TechSpot’s contemporary review describes the two-GPU design and these product details in its Radeon HD 7990 review.
#1 Best Overall
- 【2GB GDDR3 Memory】AMD Radeon HD 5450 graphics card is with 650MHz core frequency, up to 1066MHz memory speed,80 Stream Processors,perfect for working,video and photo editing,allows good fluency,which can effectively meet your needs.
- 【Low Profile Design】The computer graphics cards is small in size,saves more space and plug and play.Small Form Factor design fits in today’s low profile desktops and workstations (with half height bracket).
- 【Multi-monitor Support】Supports up to two monitors for the video card including DVI,VGA,HDMI, and for flexibility of use(the VGA Interface is removable),This low profile, low power consumption card will improve multimedia performance, extend the desktop, and accelerate apps.
- 【Fanless Design for Zero Noise】The HD 5450 is a budget video card with silent passive fanless cooling system.Using high performance heatsinks,it is small enough to provide fanless operation and comfortable to use with zero noise.
- 【Independently Power】No external power supply, about 19W full-load power consumption.Works with Windows 10 as well as 7, 8 and 8.1(NOT compatible with windows 11).
What AMD’s launch performance claims show—and what they do not
AMD reported a Fire Strike Extreme score of 6,407 for the HD 7990 against 5,316 for the GTX 690. The results were from AMD’s testing as of February 28, 2013, on a Core i7-3960X system with an MSI X79A-GD65 motherboard, 16 GB of DDR3-1600 memory and Windows 8 x64. AMD used Catalyst 13.2 Beta 6 for its card and ForceWare 310.90 WHQL for the GTX 690. The figures are vendor-reported benchmark results under that specific setup, not a universal measure of game performance.
AMD also said the HD 7990 had higher average performance in its selected Crysis 3 tests at 1080p and 1600p. Those claims help explain how AMD presented the card at launch, but they do not establish that every game benefited equally from its second GPU. Multi-GPU scaling is title-dependent, and the cited launch results do not show performance in current games.
Rank #2
- AMD Radeon RX 550 Chipset, Silver plated PCB & all solid capacitors provide lower temperature, higher efficiency & stability
- 9CM unique fan provide low noise and huge airflow for your GPU
- GPU Boost Clock / Memory Speed : up to 1183 MHz / 4GB GDDR5 / 6000 MHz Memory, Stream Processors 512, Perfect for 3D CAD/CAM working, video and photo editing, Video Games @1080p
- Support: DirectX 12, Shader Model 5.0, OpenGL 4.6/4.5, 4K Video Decode
Power, temperature and practical trade-offs
In TechSpot’s 2013 test, total system consumption reached 491 W. The review said that was 22% above its GTX 690 result and 36% above a single Radeon HD 7970 GHz Edition result. These are measurements of the reviewer’s complete test system, not the card’s power draw in isolation or a universal figure for other PCs.
TechSpot recorded a maximum temperature of 72°C in that test. That result applies to its sample, test conditions and workload; it should not be treated as a guaranteed temperature in another case or environment. The card’s 30 cm length is another practical consideration for a retro build: a buyer would need to check clearance in the specific case and verify the exact board’s power and display connections.
Rank #3
- Interface: PCIe x16
- Memory: 1GB
- Memory type: DDR3
- Connectors: 1 x DVI, 1 x DisplayPort
- Thermal Solution: Fan with Heatsink
Displays and launch extras
AMD advertised support for up to six simultaneous displays through Eyefinity, but its release qualified that capability: supported display quantity, type and resolution depended on the card model and board design. AMD recommended DisplayPort-ready monitors for setups with more than two displays and noted that additional hardware could be required. “Up to six” is therefore not a guarantee that every HD 7990 board will drive any six displays; inspect the outputs on the particular card and confirm the required adapters and display setup.
The launch announcement also included an eight-title “Never Settle: Reloaded” game bundle. Codes were offered through participating retailers from April 16 to October 1, 2013, or until codes ran out, whichever came first. It was a limited historical promotion, not an offer attached to a card today.
Rank #4
- 【Ultimate Triple Display Connectivity】: Features a versatile output array including HDMI, DisplayPort (DP), and DVI. Whether you're connecting a high-refresh-rate gaming monitor via DP or a standard office screen via HDMI, this card supports triple-monitor setups for maximum productivity.
- 【Compact Size & Wide Compatibility】: Measuring 240x135x45mm (9.45x5.31x1.77 inches), this dual-fan RX 580 fits perfectly into standard ATX Mid-Towers, Micro-ATX (M-ATX), ideal for compact desktop PC upgrades and space-saving gaming builds.
- 【Optimized Gaming Performance】: With 2048 Stream Processors and a 1206 MHz core clock, this card delivers solid frame rates in popular titles like Fortnite, GTA V, Apex Legends, and Valorant. It’s the ideal budget-friendly GPU for entry-level to mid-range gaming rigs.
- 【Advanced Thermal Management】: Engineered with a dual-fan cooling system and high-efficiency heat pipes to ensure stable performance under heavy loads. The intelligent fan control keeps your system quiet during light office work and provides maximum airflow during intense gaming sessions.
- 【Ready for Content Creation】: Supports DirectX 12, Vulkan, and OpenGL 4.6, making it more than just a gaming card. It provides hardware acceleration for video editing in Premiere Pro, 3D rendering in Blender, and smooth streaming for aspiring creators.
Is the Radeon HD 7990 still worth buying?
It can make sense as a collectible or as a component in a deliberately period-correct retro PC, but the available evidence does not establish a current used-market price, listing availability, condition or compatibility with a particular modern platform. A purchase decision needs to start with the exact board and intended system, not the original flagship label.
- Check the individual card: confirm condition, board variant, physical dimensions, outputs and required power connections from the listing and card documentation.
- Check the build: verify case clearance, power-supply suitability, motherboard and operating-system compatibility for the exact hardware combination.
- Check the intended games: do not assume a modern title will support or scale across both GPUs. The cited evidence is from 2013 and does not establish current-game performance.
- Price it as legacy hardware: the $999 figure was its 2013 US launch MSRP, not a guide to what a used card is worth now.
Driver support today
AMD’s HD 7990 support page labels the card legacy hardware. As checked on October 4, 2026, AMD lists Adrenalin 22.6.1 (64-bit Windows) as the latest driver for the card, dated June 23, 2022. AMD’s legacy-support information says no further driver releases are planned for the HD 7700–7900 series. See the HD 7990 driver page and AMD legacy support FAQ for the current listings.
AMD’s installation guidance recommends using the final available driver for legacy products and advises caution when combining legacy and non-legacy hardware; it notes that issues such as performance drops, game crashes or system errors may occur. The HD 7990’s past status as a high-end gaming card does not establish broad compatibility with today’s games, operating systems or PCs.
Quick Recap
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