GeForce GTX 960 vs Radeon HD 6990

When choosing between GeForce GTX 960 and Radeon HD 6990, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 960 and Radeon HD 6990.

Main Specs

  GeForce GTX 960 Radeon HD 6990
Power consumption (TDP) 120 Watt 375 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pins 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors 1x DVI, 1x HDMI, 3x DisplayPort 1x DVI, 4x mini-DisplayPort
Recommended system power (PSU) 400 Watt
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  • Radeon HD 6990 has 212% more power consumption, than GeForce GTX 960.
  • GeForce GTX 960 is connected by PCIe 3.0 x16, and Radeon HD 6990 uses PCIe 2.0 x16 interface.
  • GeForce GTX 960 has 2 GB more memory, than Radeon HD 6990.
  • Both cards are used in Desktops.
  • GeForce GTX 960 is build with Maxwell architecture, and Radeon HD 6990 - with TeraScale 3.
  • Core clock speed of GeForce GTX 960 is 297 MHz higher, than Radeon HD 6990.
  • GeForce GTX 960 is manufactured by 28 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
  • Radeon HD 6990 is 286 mm longer, than GeForce GTX 960.
  • Memory clock speed of Radeon HD 6990 is 4993 MHz higher, than GeForce GTX 960.

Game benchmarks

high / 1080p 35−40 14−16
ultra / 1080p 21−24 9−10
QHD / 1440p 16−18 3−4
4K / 2160p 10−11
low / 720p 60−65 30−35
medium / 1080p 40−45 18−20
The average gaming FPS of GeForce GTX 960 in Assassin's Creed Odyssey is 140% more, than Radeon HD 6990.

Full Specs

  GeForce GTX 960 Radeon HD 6990
Architecture Maxwell TeraScale 3
Code name GM206 Antilles
Type Desktop Desktop
Release date 22 January 2015 8 March 2011
Pipelines 1024 1536
Core clock speed 1127 MHz 830 MHz
Boost Clock 1178 MHz
Transistor count 2,940 million 2,640 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 72 billion/sec 79.68
Floating-point performance 2,413 gflops 2x 2,549.8 gflops
Length 9.5" (24.1 cm) 295 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 7.0 GB/s 5000 MHz
Memory bandwidth 112 GB/s 160.0 GB/s
Shared memory -
G-SYNC support +
DirectX 12 (12_1) 11.2 (11_0)
Shader Model 6.4 5.0
OpenGL 4.4 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126 N/A
CUDA +
Monero / XMR (CryptoNight) 0.27 kh/s
CUDA cores 1024
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
Bitcoin / BTC (SHA256) 318 Mh/s 265 Mh/s
Decred / DCR (Decred) 0.92 Gh/s
Ethereum / ETH (DaggerHashimoto) 8 Mh/s 24 Mh/s
Zcash / ZEC (Equihash) 141.47 Sol/s
GameStream +
GeForce ShadowPlay +
GPU Boost 2.0
GameWorks +
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