Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 680 Radeon HD 6850
Cyberpunk 2077 59% 265%
Assassins Creed: Valhalla 46% 233%
Call of Duty: Black Ops Cold War 41% 223%
FIFA 21 20% 84%
Microsoft Flight Simulator 41% 223%
Watch Dogs Legion 54% 252%
World of Warcraft: Shadowlands 128% 423%
Horizon: Zero Dawn 51% 245%
Grand Theft Auto VI 124% 413%
Genshin Impact 59% 265%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 680 are massively better than the AMD Radeon HD 6850.

The GeForce GTX 680 has a 231 MHz higher core clock speed and 80 more Texture Mapping Units than the Radeon HD 6850. This results in the GeForce GTX 680 providing 91.6 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce GTX 680 has a 231 MHz higher core clock speed than the Radeon HD 6850 and the same number of Render Output Units. This results in the GeForce GTX 680 providing 7.4 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GeForce GTX 680 was released over a year more recently than the Radeon HD 6850, and so the GeForce GTX 680 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the Radeon HD 6850.

The GeForce GTX 680 has 1024 MB more video memory than the Radeon HD 6850, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GeForce GTX 680 also has superior memory performance overall.

The GeForce GTX 680 has 64.3 GB/sec greater memory bandwidth than the Radeon HD 6850, which means that the memory performance of the GeForce GTX 680 is much better than the Radeon HD 6850.

The GeForce GTX 680 has 1536 Shader Processing Units and the Radeon HD 6850 has 960. However, the actual shader performance of the GeForce GTX 680 is 1625 and the actual shader performance of the Radeon HD 6850 is 372. The GeForce GTX 680 having 1253 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce GTX 680 delivers a massively smoother and more efficient experience when processing graphical data than the Radeon HD 6850.

The GeForce GTX 680 transistor size technology is 12 nm (nanometers) smaller than the Radeon HD 6850. This means that the GeForce GTX 680 is expected to run slightly cooler and achieve higher clock frequencies than the Radeon HD 6850.

The GeForce GTX 680 requires 195 Watts to run and the Radeon HD 6850 requires 127 Watts. We would recommend a PSU with at least 550 Watts for the GeForce GTX 680 and a PSU with at least 500 Watts for the Radeon HD 6850. The GeForce GTX 680 requires 68 Watts more than the Radeon HD 6850 to run. The difference is significant enough that the GeForce GTX 680 may have an adverse affect on your yearly electricity bills in comparison to the Radeon HD 6850.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1006 MHzvs775 MHz
Boost Clock1058 MHzvs-
ArchitectureKepler GK104-400-A2Terascale 2 Barts Pro
OC Potential Good vs Fair
Driver Support Good vs Poor
Release Date22 Mar 2012vs22 Oct 2010
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs
9.2
1600x900
10
green tick vs
7
1920x1080
8.4
green tick vs
5.5
2560x1440
6.1
green tick vs
3.7
3840x2160
4.5
green tick vs -

GPU Memory

Memory2048 MBvs1024 MB
Memory Speed1502 MHzvs1000 MHz
Memory Bus256 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth192.3GB/secvs128GB/sec
L2 Cache 512 KB green tick vs green tick 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1536vs960
Actual Shader Performance78%vs18%
Technology28nmvs40nm
Texture Mapping Units128vs48
Texture Rate128.8 GTexel/svs37.2 GTexel/s
Render Output Units32vs32
Pixel Rate32.2 GPixel/svs24.8 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs1
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power195 Wattsvs127 Watts
Recommended PSU550 Watts & 40 Ampsvs500 Watts & 25 Amps

GPU Features

DirectX12.0vs11.0
Shader Model5.0vs5.0
Open GL4.5vs4.3
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-3770K 4-Core 3.5GHzvsIntel Core i5-760 2.8GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1680x1050

Gaming Performance Value

Battlefield 3vs
The Elder Scrolls Vvs
Max Payne 3vs
Far Cry 3vs
Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 680 is a high-end Graphics Card based on the 28nm, Kepler architecture.
The Kepler architecture allows more SPUs but the Fermi SPUs (used on the 400 & 500 Series) are clocked twice as fast as the Kepler architecture. Therefore, don't let the large amount of Pipelines fool you, as the 1536 Pipelines are equivalent to 768 Pipelines, of the Fermi architecture.
GeForce GTX 680 features a 1006Mhz core-clock that can automatically set itself to 1058Mhz using a technology similar to the one used on Intel GPUs. Another huge surprise is the TDP that went from 244 Watts, to just 195 Watts, as two SPUs of the Kepler architecture consume 10% less power. However, the amount was doubled and so the power save is not as high as it could have been.
GeForce GTX 680 was the fastest single GPU of the world until Radeon HD 7970 GHz Edition was released.
All games will run on the maximum settings smoothly.
Radeon HD 6850 is a Performance GPU part of the Radeon HD 6000 Series based on the Southern Islands 40nm architecture. The Barts Pro core comes packed with 960 Shader Processing Units, 48TMUs and a nice count of 32 ROPs, since the card features a 256-bit memory interface. The central unit is clocked at 775Mhz and Memory clocked at 100Mhz. HD 6850 features fast GDDR5 Memory, and has the required bandwidth for Full HD gaming, although Modern Demanding games like Crysis 3 will need lowered AA techniques to achieve a playable frame rate.
Recommended CPU
Possible GPU Upgrades
-
GPU Variants