Radeon HD 6870 vs Radeon Pro 450

In this comparison between Radeon HD 6870 and Radeon Pro 450 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon HD 6870 will be the best choice, for others Radeon Pro 450 will be their preference. Study the comparison tables below and make your choice.

Radeon Pro 450 is a Laptop Graphics Card

Note: Radeon Pro 450 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 Radeon Pro 450 here:

Main Specs

  Radeon HD 6870 Radeon Pro 450
Power consumption (TDP) 151 Watt 35 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort No outputs
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  • Radeon HD 6870 has 331% more power consumption, than Radeon Pro 450.
  • Radeon HD 6870 is connected by PCIe 2.0 x16, and Radeon Pro 450 uses PCIe 3.0 x8 interface.
  • Radeon Pro 450 has 1 GB more memory, than Radeon HD 6870.
  • Radeon HD 6870 is used in Desktops, and Radeon Pro 450 - in Mobile workstations.
  • Radeon HD 6870 is build with Terascale 2 architecture, and Radeon Pro 450 - with Polaris.
  • Radeon HD 6870 is manufactured by 40 nm process technology, and Radeon Pro 450 - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 450 is 4030 MHz higher, than Radeon HD 6870.

Game benchmarks

high / 1080p 10−12 14−16
ultra / 1080p 6−7 8−9
QHD / 1440p 1−2 3−4
low / 720p 24−27 27−30
medium / 1080p 12−14 16−18
The average gaming FPS of Radeon Pro 450 in Assassin's Creed Odyssey is 27% more, than Radeon HD 6870.

Full Specs

  Radeon HD 6870 Radeon Pro 450
Architecture Terascale 2 Polaris
Code name RV940 Barts Polaris 11
Type Desktop Mobile workstation
Release date 22 October 2010 27 October 2016
Pipelines 1120 640
Core clock speed 800 MHz
Boost Clock 900 MHz
Transistor count 1,700 million 3,000 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 50.40 32.00
Floating-point performance 2,016.0 gflops 1,024 gflops
Length 220 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1050 MHz 5080 MHz
Memory bandwidth 134.4 GB/s 81.28 GB/s
Shared memory - -
DirectX 12 (12_0)
Shader Model 5.0 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131
FreeSync +
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 213 Mh/s 127 Mh/s
Laptop size large
Eyefinity +
Design reference
CrossFire +
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