Radeon HD 6990 vs Radeon R7 260

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990 and Radeon R7 260. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6990 and Radeon R7 260. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Main Specs

  Radeon HD 6990 Radeon R7 260
Power consumption (TDP) 375 Watt 115 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin 1 x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 1x DVI, 4x mini-DisplayPort 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6990 has 226% more power consumption, than Radeon R7 260.
  • Radeon HD 6990 is connected by PCIe 2.0 x16, and Radeon R7 260 uses PCIe 3.0 x16 interface.
  • Radeon HD 6990 and Radeon R7 260 have maximum RAM of 2 GB.
  • Both cards are used in Desktops.
  • Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon R7 260 - with GCN 2.0.
  • Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon R7 260 - by 28 nm process technology.
  • Radeon HD 6990 is 125 mm longer, than Radeon R7 260.
  • Memory clock speed of Radeon HD 6990 is 3375 MHz higher, than Radeon R7 260.

Game benchmarks

high / 1080p 14−16 14−16
ultra / 1080p 9−10 8−9
QHD / 1440p 3−4 3−4
low / 720p 30−35 30−35
medium / 1080p 18−20 18−20
Radeon HD 6990 and Radeon R7 260 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Radeon HD 6990 Radeon R7 260
Architecture TeraScale 3 GCN 2.0
Code name Antilles Bonaire
Type Desktop Desktop
Release date 8 March 2011 17 December 2013
Pipelines 1536 768
Core clock speed 830 MHz
Boost Clock 1100 MHz
Transistor count 2,640 million 2,080 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 79.68 48.00
Floating-point performance 2x 2,549.8 gflops 1,536 gflops
Length 295 mm 170 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 5000 MHz 1625 MHz
Memory bandwidth 160.0 GB/s 104 GB/s
DirectX 11.2 (11_0)
Shader Model 5.0 6.3
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan N/A
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 265 Mh/s 240 Mh/s
Eyefinity +
Design reference
DisplayPort support +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
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