GeForce GT 745A vs Radeon HD 6870

When choosing between GeForce GT 745A and Radeon HD 6870, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GT 745A and Radeon HD 6870.

Main Specs

  GeForce GT 745A Radeon HD 6870
Power consumption (TDP) 33 Watt 151 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors 2x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6870 has 357% more power consumption, than GeForce GT 745A.
  • GeForce GT 745A is connected by PCIe 3.0 x16, and Radeon HD 6870 uses PCIe 2.0 x16 interface.
  • GeForce GT 745A has 1 GB more memory, than Radeon HD 6870.
  • Both cards are used in Desktops.
  • GeForce GT 745A is build with Kepler architecture, and Radeon HD 6870 - with Terascale 2.
  • GeForce GT 745A is manufactured by 28 nm process technology, and Radeon HD 6870 - by 40 nm process technology.
  • Memory clock speed of GeForce GT 745A is 750 MHz higher, than Radeon HD 6870.

Game benchmarks

high / 1080p 2−3 10−12
ultra / 1080p 0−1 6−7
QHD / 1440p 0−1 1−2
low / 720p 12−14 24−27
medium / 1080p 4−5 12−14
The average gaming FPS of Radeon HD 6870 in Assassin's Creed Odyssey is 166% more, than GeForce GT 745A.

Full Specs

  GeForce GT 745A Radeon HD 6870
Architecture Kepler Terascale 2
Code name GK107 RV940 Barts
Type Desktop Desktop
Release date 26 August 2013 22 October 2010
Pipelines 384 1120
Core clock speed 837 MHz
Boost Clock 915 MHz 900 MHz
Transistor count 1,270 million 1,700 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 29.28 50.40
Floating-point performance 642.8 gflops 2,016.0 gflops
Length 220 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 1800 MHz 1050 MHz
Memory bandwidth 28.8 GB/s 134.4 GB/s
Shared memory -
DirectX 12 (11_0)
Shader Model 5.1 5.0
OpenGL 4.6 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126
CUDA 3.0
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 26 Mh/s 213 Mh/s
Eyefinity +
Design reference
CrossFire +
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