Radeon HD 4770 vs Radeon HD 7950

When comparing Radeon HD 4770 and Radeon HD 7950, 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 7950 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 7950
Power consumption (TDP) 80 Watt 200 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin 2x 6-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 7950 has 150% more power consumption, than Radeon HD 4770.
  • Radeon HD 4770 is connected by PCIe 2.0 x16, and Radeon HD 7950 uses PCIe 3.0 x16 interface.
  • Radeon HD 4770 has 509 GB more memory, than Radeon HD 7950.
  • Both cards are used in Desktops.
  • Radeon HD 4770 is build with TeraScale architecture, and Radeon HD 7950 - with GCN 1.0.
  • Radeon HD 4770 is manufactured by 40 nm process technology, and Radeon HD 7950 - by 28 nm process technology.
  • Radeon HD 7950 is 64 mm longer, than Radeon HD 4770.
  • Memory clock speed of Radeon HD 4770 is 1950 MHz higher, than Radeon HD 7950.

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 7950 in Assassin's Creed Odyssey is 840% more, than Radeon HD 4770.

Full Specs

  Radeon HD 4770 Radeon HD 7950
Architecture TeraScale GCN 1.0
Code name RV740 Tahiti
Type Desktop Desktop
Release date 28 April 2009 31 January 2012
Pipelines 640 1792
Core clock speed 750 MHz
Boost Clock 1250 MHz
Transistor count 826 million 4,313 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 24.00 89.60
Floating-point performance 960.0 gflops 2,867 gflops
Length 203 mm 267 mm
Memory bus width 128 Bit 384 Bit
Memory clock speed 3200 MHz 1250 MHz
Memory bandwidth 51.2 GB/s 240 GB/s
DirectX 10.1 (10_1)
Shader Model 4.1 5.1
OpenGL 3.3 4.6
OpenCL 1.1 1.2
Vulkan N/A
Monero / XMR (CryptoNight) 0.56 kh/s
FreeSync +
Bus support PCIe 3.0 x16
HDMI +
Bitcoin / BTC (SHA256) 381 Mh/s
Eyefinity +
PowerTune +
ZeroCore +
Design reference
Number of Eyefinity displays 6
CrossFire +
Decred / DCR (Decred) 0.78 Gh/s
Ethereum / ETH (DaggerHashimoto) 13.86 Mh/s
Zcash / ZEC (Equihash) 250 Sol/s
Compute units 28
AppAcceleration +
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