NVIDIA GeForce GTX 850A vs AMD Radeon HD 6850

What is the difference between NVIDIA GeForce GTX 850A and AMD Radeon HD 6850. Find out which graphics card has better performance.

Graphics Processor (GPU)

GM107GPU NameBarts
N15P-GT-A1Model numberBarts PRO
(215-0798006)
MaxwellArchitectureTeraScale 2
TSMCFoundryTSMC
28 nmProcess Size40 nm
1,870 millionTransistors1,700 million
148 mm²Die Size255 mm²

Graphics Card

Mar 17th, 2014Release DateOct 21st, 2010
GeForce 800AFamilyNorthern Islands
(HD 6800)
End-of-lifeProductionEnd-of-life
GeForce 700APredecessorEvergreen
PCIe 3.0 x16Bus InterfacePCIe 2.0 x16

Memory

2 GBMemory Size1024 MB
DDR3Memory TypeGDDR5
128 bitMemory Bus256 bit
28.80 GB/sBandwidth128.0 GB/s

Performance

14.98 GPixel/sPixel fillrate24.80 GPixel/s
37.44 GTexel/sTexture fillrate37.20 GTexel/s
1,198 GFLOPSFP32 (float) performance1,488 GFLOPS

Clock Speeds

900 MHz
1800 Mbps effective
Memory Clock1000 MHz
4 Gbps effective

Render Config

640Shading Units960
40TMUs48
16ROPs32
64 KB (per SMM)L1 Cache8 KB (per CU)
2 MBL2 Cache512 KB

Board Design

IGPSlot WidthDual-slot
45 WThermal design power (TDP)127 W
No outputsDisplay Connectors2x DVI
1x HDMI
2x mini-DisplayPort

API support

12 (11_0)DirectX11.2 (11_0)
4.6OpenGL4.4
3.0OpenCL1.2
1.1VulkanN/A
5.1Shader Model5.0