GeForce GTX 970 vs Radeon HD 6990

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 970 and Radeon HD 6990. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 970 and Radeon HD 6990. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Main Specs

  GeForce GTX 970 Radeon HD 6990
Power consumption (TDP) 148 Watt 375 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors 2x 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) 500 Watt
  Check Price Check Price
  • Radeon HD 6990 has 153% more power consumption, than GeForce GTX 970.
  • GeForce GTX 970 is connected by PCIe 3.0 x16, and Radeon HD 6990 uses PCIe 2.0 x16 interface.
  • GeForce GTX 970 has 2 GB more memory, than Radeon HD 6990.
  • Both cards are used in Desktops.
  • GeForce GTX 970 is build with Maxwell architecture, and Radeon HD 6990 - with TeraScale 3.
  • Core clock speed of GeForce GTX 970 is 220 MHz higher, than Radeon HD 6990.
  • GeForce GTX 970 is manufactured by 28 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
  • Radeon HD 6990 is 285 mm longer, than GeForce GTX 970.
  • Memory clock speed of Radeon HD 6990 is 4993 MHz higher, than GeForce GTX 970.

Game benchmarks

high / 1080p 50−55 14−16
ultra / 1080p 30−35 9−10
QHD / 1440p 27−30 3−4
4K / 2160p 14−16
low / 720p 75−80 30−35
medium / 1080p 60−65 18−20
The average gaming FPS of GeForce GTX 970 in Assassin's Creed Odyssey is 233% more, than Radeon HD 6990.

Full Specs

  GeForce GTX 970 Radeon HD 6990
Architecture Maxwell TeraScale 3
Code name GM204 Antilles
Type Desktop Desktop
Release date 19 September 2014 8 March 2011
Pipelines 1664 1536
Core clock speed 1050 MHz 830 MHz
Boost Clock 1178 MHz
Transistor count 5,200 million 2,640 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 109 billion/sec 79.68
Floating-point performance 3,920 gflops 2x 2,549.8 gflops
Length 10.5" (26.7 cm) 295 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 7.0 GB/s 5000 MHz
Memory bandwidth 224 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) 0.48 kh/s
CUDA cores 1664
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) 478 Mh/s 265 Mh/s
Decred / DCR (Decred) 1.51 Gh/s
Ethereum / ETH (DaggerHashimoto) 22.21 Mh/s 24 Mh/s
Zcash / ZEC (Equihash) 291.61 Sol/s
GameStream +
GeForce ShadowPlay +
GPU Boost 2.0
GameWorks +
  Check Price Check Price