GeForce 9800M GT SLI vs Radeon HD 7990

If you are going to buy a new graphics card and are choosing between GeForce 9800M GT SLI and Radeon HD 7990, 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 9800M GT SLI stacks up against Radeon HD 7990, check out specs charts below.

GeForce 9800M GT SLI is a Laptop Graphics Card

Note: GeForce 9800M GT SLI 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 9800M GT SLI here:

Main Specs

  GeForce 9800M GT SLI Radeon HD 7990
Power consumption (TDP) 130 Watt 375 Watt
Interface PCIe 3.0 x16
Supplementary power connectors 2x 8-pin
Memory type GDDR3 GDDR5
Maximum RAM amount 512 MB 3 GB
Display Connectors 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 7990 has 188% more power consumption, than GeForce 9800M GT SLI.
  • GeForce 9800M GT SLI has 509 GB more memory, than Radeon HD 7990.
  • GeForce 9800M GT SLI is used in Laptops, and Radeon HD 7990 - in Desktops.
  • GeForce 9800M GT SLI is build with G9x architecture, and Radeon HD 7990 - with GCN 1.0.
  • Core clock speed of Radeon HD 7990 is 450 MHz higher, than GeForce 9800M GT SLI.
  • GeForce 9800M GT SLI is manufactured by 65 nm process technology, and Radeon HD 7990 - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7990 is 5200 MHz higher, than GeForce 9800M GT SLI.

Game benchmarks

high / 1080p 5−6 35−40
ultra / 1080p 3−4 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 14−16 60−65
medium / 1080p 7−8 40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 485% more, than GeForce 9800M GT SLI.

Full Specs

  GeForce 9800M GT SLI Radeon HD 7990
Architecture G9x GCN 1.0
Code name NB9E-GT2 Malta
Type Laptop Desktop
Release date 15 July 2008 24 April 2013
Pipelines 192 2048
Core clock speed 500 MHz 950 MHz
Boost Clock 1000 MHz
Transistor count 1508 Million 4,313 million
Manufacturing process technology 65 nm 28 nm
Texture fill rate 128.0
Floating-point performance 2x 4,096 gflops
Length 307 mm
Memory bus width 256 Bit 384 Bit
Memory clock speed 800 MHz 6000 MHz
Memory bandwidth 288.0 GB/s
Shared memory -
DirectX DirectX 10, Shader 4.0 12 (11_1)
Shader Model 5.1
OpenGL 4.6
OpenCL 1.2
Vulkan 1.2.131
CUDA +
SLI options +
Bitcoin / BTC (SHA256) 459 Mh/s
Laptop size large
Ethereum / ETH (DaggerHashimoto) 44 Mh/s
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