GeForce GT 640 vs HD Graphics 515

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640 and HD Graphics 515. 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 GeForce GT 640 and HD Graphics 515. 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.

HD Graphics 515 is a Laptop Graphics Card

Note: HD Graphics 515 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 HD Graphics 515 here:

Main Specs

  GeForce GT 640 HD Graphics 515
Power consumption (TDP) 65 Watt 15 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x1
Supplementary power connectors None
Memory type DDR3 DDR3L/LPDDR3
Maximum RAM amount 2 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort No outputs
  Check Price Check Price
  • GeForce GT 640 has 333% more power consumption, than HD Graphics 515.
  • GeForce GT 640 is connected by PCIe 3.0 x16, and HD Graphics 515 uses PCIe 3.0 x1 interface.
  • GeForce GT 640 is used in Desktops, and HD Graphics 515 - in Laptops.
  • GeForce GT 640 is build with Kepler architecture, and HD Graphics 515 - with Gen. 9 Skylake.
  • Core clock speed of GeForce GT 640 is 602 MHz higher, than HD Graphics 515.
  • GeForce GT 640 is manufactured by 28 nm process technology, and HD Graphics 515 - by 14 nm process technology.

Game benchmarks

high / 1080p 2−3 0−1
ultra / 1080p 1−2 0−1
QHD / 1440p 0−1 0−1
low / 720p 14−16 10−11
medium / 1080p 5−6 2−3
The average gaming FPS of GeForce GT 640 in Assassin's Creed Odyssey is 66% more, than HD Graphics 515.

Full Specs

  GeForce GT 640 HD Graphics 515
Architecture Kepler Gen. 9 Skylake
Code name GK107 Skylake GT2
Type Desktop Laptop
Release date 5 June 2012 1 September 2015
Pipelines 384 24
Core clock speed 902 MHz 300 MHz
Boost Clock 1000 MHz
Transistor count 1,270 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 28.86 22.80
Floating-point performance 692.7 gflops
Length 145 mm
Memory bus width 128 Bit 64/128 Bit
Memory clock speed 1782 MHz
Memory bandwidth 28.51 GB/s
Shared memory +
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.1
Vulkan 1.1.126 1.1.97
CUDA 3.0
Bitcoin / BTC (SHA256) 24 Mh/s
Quick Sync +
  Check Price Check Price