Radeon HD 6990 vs Radeon R7 M460

When comparing Radeon HD 6990 and Radeon R7 M460, 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 6990 and Radeon R7 M460 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon R7 M460 is a Laptop Graphics Card

Note: Radeon R7 M460 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 R7 M460 here:

Main Specs

  Radeon HD 6990 Radeon R7 M460
Power consumption (TDP) 375 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 8-pin
Memory type GDDR5 DDR3
Maximum RAM amount 2 GB 2 GB
Display Connectors 1x DVI, 4x mini-DisplayPort No outputs
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  • Radeon HD 6990 is connected by PCIe 2.0 x16, and Radeon R7 M460 uses PCIe 3.0 x8 interface.
  • Radeon HD 6990 and Radeon R7 M460 have maximum RAM of 2 GB.
  • Radeon HD 6990 is used in Desktops, and Radeon R7 M460 - in Laptops.
  • Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon R7 M460 - with GCN.
  • Core clock speed of Radeon R7 M460 is 154 MHz higher, than Radeon HD 6990.
  • Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon R7 M460 - by 28 nm process technology.
  • Memory clock speed of Radeon HD 6990 is 3000 MHz higher, than Radeon R7 M460.

Game benchmarks

high / 1080p 14−16 2−3
ultra / 1080p 9−10 0−1
QHD / 1440p 3−4 0−1
low / 720p 30−35 12−14
medium / 1080p 18−20 4−5
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 266% more, than Radeon R7 M460.

Full Specs

  Radeon HD 6990 Radeon R7 M460
Architecture TeraScale 3 GCN
Code name Antilles Meso
Type Desktop Laptop
Release date 8 March 2011 21 February 2016
Pipelines 1536 384
Core clock speed 830 MHz 984 MHz
Boost Clock 1125 MHz
Transistor count 2,640 million 1,550 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 79.68 27.00
Floating-point performance 2x 2,549.8 gflops 864.0 gflops
Length 295 mm
Memory bus width 256 Bit 64 Bit
Memory clock speed 5000 MHz 2000 MHz
Memory bandwidth 160.0 GB/s 14.4 GB/s
Shared memory -
DirectX 11.2 (11_0) 12 (12_0)
Shader Model 5.0 6.0
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan N/A 1.2.131
Bitcoin / BTC (SHA256) 265 Mh/s
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
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