Radeon HD 7870 XT vs Radeon R9 280X

When comparing Radeon HD 7870 XT and Radeon R9 280X, 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 7870 XT and Radeon R9 280X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Main Specs

  Radeon HD 7870 XT Radeon R9 280X
Power consumption (TDP) 185 Watt 250 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 6-pin 1 x 6-pin + 1 x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 3 GB
Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 280X has 35% more power consumption, than Radeon HD 7870 XT.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon R9 280X has 1 GB more memory, than Radeon HD 7870 XT.
  • Both cards are used in Desktops.
  • Radeon HD 7870 XT is build with GCN 1.0 architecture, and Radeon R9 280X - with GCN.
  • Radeon HD 7870 XT and Radeon R9 280X are manufactured by 28 nm process technology.
  • Radeon R9 280X is 8 mm longer, than Radeon HD 7870 XT.

Game benchmarks

high / 1080p 35−40 35−40
ultra / 1080p 21−24 21−24
QHD / 1440p 16−18 16−18
4K / 2160p 10−11 10−11
low / 720p 60−65 60−65
medium / 1080p 40−45 40−45
Radeon HD 7870 XT and Radeon R9 280X have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Radeon HD 7870 XT Radeon R9 280X
Architecture GCN 1.0 GCN
Code name Tahiti Thaiti XTL
Type Desktop Desktop
Release date 19 November 2012 8 October 2013
Pipelines 1536 2048
Core clock speed 925 MHz
Boost Clock 975 MHz 1000 MHz
Transistor count 4,313 million 4,313 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 93.60 128.0
Floating-point performance 2,995 gflops 4,096 gflops
Length 267 mm 275 mm
Memory bus width 256 Bit 384 Bit
Memory clock speed 6000 MHz
Memory bandwidth 192.0 GB/s 288 GB/s
Shared memory -
DirectX 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2.131 +
Monero / XMR (CryptoNight) 0.5 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 346 Mh/s 494 Mh/s
Eyefinity +
HD3D +
TrueAudio +
Design reference
DisplayPort support +
CrossFire +
DDMA audio +
Decred / DCR (Decred) 1.07 Gh/s
Ethereum / ETH (DaggerHashimoto) 14.5 Mh/s 14.42 Mh/s
Zcash / ZEC (Equihash) 285 Sol/s
AppAcceleration +
LiquidVR +
TressFX +
UVD +
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