Radeon HD 6990 vs UHD Graphics 615

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990 and UHD Graphics 615. 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 UHD Graphics 615. 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.

UHD Graphics 615 is a Laptop Graphics Card

Note: UHD Graphics 615 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 UHD Graphics 615 here:

Main Specs

  Radeon HD 6990 UHD Graphics 615
Power consumption (TDP) 375 Watt 15 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x1
Supplementary power connectors 2x 8-pin
Memory type GDDR5 DDR3L/LPDDR3
Maximum RAM amount 2 GB
Display Connectors 1x DVI, 4x mini-DisplayPort No outputs
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  • Radeon HD 6990 has 2400% more power consumption, than UHD Graphics 615.
  • Radeon HD 6990 is connected by PCIe 2.0 x16, and UHD Graphics 615 uses PCIe 3.0 x1 interface.
  • Radeon HD 6990 is used in Desktops, and UHD Graphics 615 - in Laptops.
  • Radeon HD 6990 is build with TeraScale 3 architecture, and UHD Graphics 615 - with Gen. 9 Amber Lake.
  • Core clock speed of Radeon HD 6990 is 530 MHz higher, than UHD Graphics 615.
  • Radeon HD 6990 is manufactured by 40 nm process technology, and UHD Graphics 615 - by 14 nm process technology.

Game benchmarks

high / 1080p 14−16 0−1
ultra / 1080p 9−10 0−1
QHD / 1440p 3−4 0−1
low / 720p 30−35 10−11
medium / 1080p 18−20 1−2
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 316% more, than UHD Graphics 615.

Full Specs

  Radeon HD 6990 UHD Graphics 615
Architecture TeraScale 3 Gen. 9 Amber Lake
Code name Antilles Kaby-Lake GT2
Type Desktop Laptop
Release date 8 March 2011 30 August 2018
Pipelines 1536 24
Core clock speed 830 MHz 300 MHz
Boost Clock 1000 MHz
Transistor count 2,640 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 79.68 25.20
Floating-point performance 2x 2,549.8 gflops
Length 295 mm
Memory bus width 256 Bit 64/128 Bit
Memory clock speed 5000 MHz
Memory bandwidth 160.0 GB/s
Shared memory +
DirectX 11.2 (11_0) 12 (12_1)
Shader Model 5.0 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.1
Vulkan N/A 1.1.103
Bitcoin / BTC (SHA256) 265 Mh/s
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
Quick Sync +
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