GeForce GTX 980M vs Radeon HD 6990

If you are going to buy a new graphics card and are choosing between GeForce GTX 980M and Radeon HD 6990, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 980M stacks up against Radeon HD 6990, check out specs charts below.

GeForce GTX 980M is a Laptop Graphics Card

Note: GeForce GTX 980M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GTX 980M here:

Main Specs

  GeForce GTX 980M Radeon HD 6990
Power consumption (TDP) 375 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Supplementary power connectors None 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 8 GB 2 GB
Display Connectors No outputs 1x DVI, 4x mini-DisplayPort
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  • GeForce GTX 980M is connected by MXM-B (3.0), and Radeon HD 6990 uses PCIe 2.0 x16 interface.
  • GeForce GTX 980M has 6 GB more memory, than Radeon HD 6990.
  • GeForce GTX 980M is used in Laptops, and Radeon HD 6990 - in Desktops.
  • GeForce GTX 980M is build with Maxwell architecture, and Radeon HD 6990 - with TeraScale 3.
  • Core clock speed of GeForce GTX 980M is 208 MHz higher, than Radeon HD 6990.
  • GeForce GTX 980M is manufactured by 28 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
  • Memory clock speed of Radeon HD 6990 is 2500 MHz higher, than GeForce GTX 980M.

Game benchmarks

high / 1080p 35−40 14−16
ultra / 1080p 24−27 9−10
QHD / 1440p 18−20 3−4
4K / 2160p 10−11
low / 720p 60−65 30−35
medium / 1080p 45−50 18−20
The average gaming FPS of GeForce GTX 980M in Assassin's Creed Odyssey is 153% more, than Radeon HD 6990.

Full Specs

  GeForce GTX 980M Radeon HD 6990
Architecture Maxwell TeraScale 3
Code name GM204 Antilles
Type Laptop Desktop
Release date 7 October 2014 8 March 2011
Pipelines 1536 1536
Core clock speed 1038 MHz 830 MHz
Boost Clock 1127 MHz
Transistor count 5,200 million 2,640 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 51.84 79.68
Floating-point performance 3,462 gflops 2x 2,549.8 gflops
Length 295 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 2500 MHz 5000 MHz
Memory bandwidth 160 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 4.5 4.4
OpenCL 1.1 1.2
Vulkan 1.1.126 N/A
CUDA +
CUDA cores 1536
Bus support PCI Express 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 383 Mh/s 265 Mh/s
Laptop size large
DisplayPort Multimode (DP++) support +
H.264, VC1, MPEG2 1080p video decoder +
Optimus +
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
GameStream +
GeForce ShadowPlay +
GPU Boost 2.0
GameWorks +
BatteryBoost +
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