GeForce 945A vs Radeon HD 6790

If you are going to buy a new graphics card and are choosing between GeForce 945A and Radeon HD 6790, 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 945A stacks up against Radeon HD 6790, check out specs charts below.

Main Specs

  GeForce 945A Radeon HD 6790
Power consumption (TDP) 33 Watt 150 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 1 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6790 has 354% more power consumption, than GeForce 945A.
  • GeForce 945A is connected by PCIe 3.0 x8, and Radeon HD 6790 uses PCIe 2.0 x16 interface.
  • GeForce 945A and Radeon HD 6790 have maximum RAM of 1 GB.
  • Both cards are used in Desktops.
  • GeForce 945A is build with Maxwell architecture, and Radeon HD 6790 - with Terascale 2.
  • Core clock speed of GeForce 945A is 232 MHz higher, than Radeon HD 6790.
  • GeForce 945A is manufactured by 28 nm process technology, and Radeon HD 6790 - by 40 nm process technology.
  • Memory clock speed of GeForce 945A is 3962 MHz higher, than Radeon HD 6790.

Game benchmarks

high / 1080p 9−10 7−8
ultra / 1080p 5−6 4−5
QHD / 1440p 0−1 0−1
low / 720p 20−22 18−20
medium / 1080p 10−12 9−10
The average gaming FPS of GeForce 945A in Assassin's Creed Odyssey is 10% more, than Radeon HD 6790.

Full Specs

  GeForce 945A Radeon HD 6790
Architecture Maxwell Terascale 2
Code name GM108 Barts
Type Desktop Desktop
Release date 13 March 2015 4 April 2011
Pipelines 384 800
Core clock speed 1072 MHz 840 MHz
Boost Clock 1189 MHz
Transistor count 1,700 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 28.54 33.60
Floating-point performance 903.2 gflops 1,344.0 gflops
Length 198 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 5012 MHz 1050 MHz
Memory bandwidth 40.1 GB/s 134.4 GB/s
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.6 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126 N/A
CUDA 5.0
Bitcoin / BTC (SHA256) 108 Mh/s 122 Mh/s
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