GeForce 9800 GTX vs Radeon HD 6990

If you are going to buy a new graphics card and are choosing between GeForce 9800 GTX 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 9800 GTX stacks up against Radeon HD 6990, check out specs charts below.

Main Specs

  GeForce 9800 GTX Radeon HD 6990
Power consumption (TDP) 140 Watt 375 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 2x 6-pin 2x 8-pin
Memory type GDDR3 GDDR5
Maximum RAM amount 512 MB 2 GB
Display Connectors 2x DVI, 1x S-Video 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 6990 has 167% more power consumption, than GeForce 9800 GTX.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • GeForce 9800 GTX has 510 GB more memory, than Radeon HD 6990.
  • Both cards are used in Desktops.
  • GeForce 9800 GTX is build with Tesla architecture, and Radeon HD 6990 - with TeraScale 3.
  • Core clock speed of GeForce 9800 GTX is 858 MHz higher, than Radeon HD 6990.
  • GeForce 9800 GTX is manufactured by 65 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
  • Radeon HD 6990 is 285 mm longer, than GeForce 9800 GTX.
  • Memory clock speed of Radeon HD 6990 is 3900 MHz higher, than GeForce 9800 GTX.

Game benchmarks

high / 1080p 0−1 14−16
ultra / 1080p 9−10
QHD / 1440p 0−1 3−4
low / 720p 1−2 30−35
medium / 1080p 0−1 18−20
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 3100% more, than GeForce 9800 GTX.

Full Specs

  GeForce 9800 GTX Radeon HD 6990
Architecture Tesla TeraScale 3
Code name G92 Antilles
Type Desktop Desktop
Release date 28 March 2008 8 March 2011
Pipelines 128 1536
Core clock speed 1688 MHz 830 MHz
Transistor count 754 million 2,640 million
Manufacturing process technology 65 nm 40 nm
Texture fill rate 43.2 billion/sec 79.68
Floating-point performance 432.1 gflops 2x 2,549.8 gflops
Length 10.5" (26.7 cm) 295 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 1100 MHz 5000 MHz
Memory bandwidth 70.4 GB/s 160.0 GB/s
DirectX 11.1 (10_0) 11.2 (11_0)
Shader Model 4.0 5.0
OpenGL 2.1 4.4
OpenCL 1.1 1.2
Vulkan N/A N/A
CUDA +
CUDA cores 128
Bus support PCI-E 2.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support +
HDMI Via Adapter
Maximum VGA resolution 2048x1536
Audio input for HDMI S/PDIF
Bitcoin / BTC (SHA256) 265 Mh/s
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
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