Radeon HD 4770 vs Radeon HD 7970

When comparing Radeon HD 4770 and Radeon HD 7970, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 4770 and Radeon HD 7970 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Main Specs

  Radeon HD 4770 Radeon HD 7970
Power consumption (TDP) 80 Watt 300 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin 1x 6-pin + 1x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 512 MB 3 GB
Display Connectors 2x DVI, 1x S-Video 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 7970 has 275% more power consumption, than Radeon HD 4770.
  • Radeon HD 4770 is connected by PCIe 2.0 x16, and Radeon HD 7970 uses PCIe 3.0 x16 interface.
  • Radeon HD 4770 has 509 GB more memory, than Radeon HD 7970.
  • Both cards are used in Desktops.
  • Radeon HD 4770 is build with TeraScale architecture, and Radeon HD 7970 - with GCN.
  • Radeon HD 4770 is manufactured by 40 nm process technology, and Radeon HD 7970 - by 28 nm process technology.
  • Radeon HD 7970 is 71 mm longer, than Radeon HD 4770.
  • Memory clock speed of Radeon HD 4770 is 1825 MHz higher, than Radeon HD 7970.

Game benchmarks

high / 1080p 1−2 35−40
ultra / 1080p 0−1 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 10−12 60−65
medium / 1080p 2−3 40−45
The average gaming FPS of Radeon HD 7970 in Assassin's Creed Odyssey is 840% more, than Radeon HD 4770.

Full Specs

  Radeon HD 4770 Radeon HD 7970
Architecture TeraScale GCN
Code name RV740 Tahiti XT
Type Desktop Desktop
Release date 28 April 2009 22 December 2011
Pipelines 640 2048
Core clock speed 750 MHz
Boost Clock 925 MHz
Transistor count 826 million 4,313 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 24.00 118.4
Floating-point performance 960.0 gflops 3,789 gflops
Length 203 mm 274 mm
Memory bus width 128 Bit 384 Bit
Memory clock speed 3200 MHz 1375 MHz
Memory bandwidth 51.2 GB/s 264 GB/s
Shared memory -
DirectX 10.1 (10_1)
Shader Model 4.1 5.1
OpenGL 3.3 4.6
OpenCL 1.1 1.2
Vulkan N/A
FreeSync +
Bus support PCIe 2.1 x16
HDMI +
Bitcoin / BTC (SHA256) 485 Mh/s
Eyefinity +
Design reference
CrossFire +
Ethereum / ETH (DaggerHashimoto) 20.71 Mh/s
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