Radeon HD 7990 vs Radeon R9 380

When comparing Radeon HD 7990 and Radeon R9 380, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 7990 and Radeon R9 380 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Main Specs

  Radeon HD 7990 Radeon R9 380
Power consumption (TDP) 375 Watt 190 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin 2 x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 3 GB 4 GB
Display Connectors 1x DVI, 4x mini-DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 7990 has 97% more power consumption, than Radeon R9 380.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon R9 380 has 1 GB more memory, than Radeon HD 7990.
  • Both cards are used in Desktops.
  • Radeon HD 7990 is build with GCN 1.0 architecture, and Radeon R9 380 - with GCN.
  • Radeon HD 7990 and Radeon R9 380 are manufactured by 28 nm process technology.
  • Radeon HD 7990 is 86 mm longer, than Radeon R9 380.
  • Memory clock speed of Radeon HD 7990 is 5030 MHz higher, than Radeon R9 380.

Game benchmarks

high / 1080p 35−40 35−40
ultra / 1080p 21−24 21−24
QHD / 1440p 16−18 16−18
4K / 2160p 10−11 10−11
low / 720p 60−65 60−65
medium / 1080p 40−45 40−45
Radeon HD 7990 and Radeon R9 380 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Radeon HD 7990 Radeon R9 380
Architecture GCN 1.0 GCN
Code name Malta Tonga Pro
Type Desktop Desktop
Release date 24 April 2013 26 June 2015
Pipelines 2048 1792
Core clock speed 950 MHz
Boost Clock 1000 MHz 970 MHz
Transistor count 4,313 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 128.0 108.6
Floating-point performance 2x 4,096 gflops 3,476 gflops
Length 307 mm 221 mm
Memory bus width 384 Bit 256 Bit
Memory clock speed 6000 MHz 970 MHz
Memory bandwidth 288.0 GB/s 182.4 GB/s
Shared memory -
DirectX 12 (11_1)
Shader Model 5.1 6.3
OpenGL 4.6 4.5
OpenCL 1.2 2.0
Vulkan 1.2.131 +
Monero / XMR (CryptoNight) 0.48 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 459 Mh/s 404 Mh/s
Eyefinity +
HD3D +
PowerTune +
TrueAudio +
ZeroCore +
Mantle +
Design reference
Bridgeless CrossFire +
Number of Eyefinity displays 6
DisplayPort support +
CrossFire +
VCE +
DDMA audio +
Decred / DCR (Decred) 0.66 Gh/s
Ethereum / ETH (DaggerHashimoto) 44 Mh/s 18 Mh/s
Zcash / ZEC (Equihash) 168.45 Sol/s
Compute units 28
Form factor full height / full length / dual slot
High bandwidth memory (HBM) -
LiquidVR +
FRTC +
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