GeForce GTX 980 vs Radeon HD 7990

In this comparison between GeForce GTX 980 and Radeon HD 7990 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GTX 980 will be the best choice, for others Radeon HD 7990 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  GeForce GTX 980 Radeon HD 7990
Power consumption (TDP) 165 Watt 375 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 6-pins 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 3 GB
Display Connectors 1x DVI, 1x HDMI, 3x DisplayPort 1x DVI, 4x mini-DisplayPort
Recommended system power (PSU) 500 Watt
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  • Radeon HD 7990 has 127% more power consumption, than GeForce GTX 980.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • GeForce GTX 980 has 1 GB more memory, than Radeon HD 7990.
  • Both cards are used in Desktops.
  • GeForce GTX 980 is build with Maxwell architecture, and Radeon HD 7990 - with GCN 1.0.
  • GeForce GTX 980 and Radeon HD 7990 are manufactured by 28 nm process technology.
  • Radeon HD 7990 is 297 mm longer, than GeForce GTX 980.
  • Memory clock speed of Radeon HD 7990 is 5993 MHz higher, than GeForce GTX 980.

Game benchmarks

high / 1080p 55−60 35−40
ultra / 1080p 35−40 21−24
QHD / 1440p 30−35 16−18
4K / 2160p 18−20 10−11
low / 720p 80−85 60−65
medium / 1080p 65−70 40−45
The average gaming FPS of GeForce GTX 980 in Assassin's Creed Odyssey is 53% more, than Radeon HD 7990.

Full Specs

  GeForce GTX 980 Radeon HD 7990
Architecture Maxwell GCN 1.0
Code name GM204 Malta
Type Desktop Desktop
Release date 19 September 2014 24 April 2013
Pipelines 2048 2048
Core clock speed 950 MHz
Boost Clock 1216 MHz 1000 MHz
Transistor count 5,200 million 4,313 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 144 billion/sec 128.0
Floating-point performance 4,981 gflops 2x 4,096 gflops
Length 10.5" (26.7 cm) 307 mm
Memory bus width 256 Bit 384 Bit
Memory clock speed 7.0 GB/s 6000 MHz
Memory bandwidth 224 GB/s 288.0 GB/s
Shared memory -
G-SYNC support +
DirectX 12 (12_1) 12 (11_1)
Shader Model 6.4 5.1
OpenGL 4.5 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2.131
CUDA +
Monero / XMR (CryptoNight) 0.54 kh/s
CUDA cores 2048
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
Bitcoin / BTC (SHA256) 579 Mh/s 459 Mh/s
DisplayPort Multimode (DP++) support +
H.264, VC1, MPEG2 1080p video decoder +
Optimus +
Decred / DCR (Decred) 1.74 Gh/s
Ethereum / ETH (DaggerHashimoto) 20.28 Mh/s 44 Mh/s
Zcash / ZEC (Equihash) 312.12 Sol/s
GameStream +
GeForce ShadowPlay +
GPU Boost 2.0
GameWorks +
BatteryBoost +
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