Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 6645G2 Quadro FX 1600M
Red Dead Redemption 2 1569% 1954%
Cyberpunk 2077 2193% 2721%
Doom Eternal 1335% 1666%
Dragon Ball Z Kakarot 930% 1167%
Call of Duty: Modern Warfare 1569% 1954%
Microsoft Flight Simulator 2193% 2721%
FIFA 20 789% 994%
Grand Theft Auto VI 2451% 3038%
Star Wars: Jedi - Fallen Order 2193% 2721%
Need For Speed Heat 1569% 1954%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 6645G2 are noticeably better than the Nvidia Quadro FX 1600M.

The Radeon HD 6645G2 has no core clock speed set, so any comparison between Texture and Pixel Fill Rates is not currently possible.

The Radeon HD 6645G2 was released over three years more recently than the Quadro FX 1600M, and so the Radeon HD 6645G2 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the Quadro FX 1600M when running the latest games.

The Quadro FX 1600M has 512 MB video memory, but the Radeon HD 6645G2 does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Radeon HD 6645G2 has 560 Shader Processing Units and the Quadro FX 1600M has 0. The two GPUs are based on different architectures, but deliver an equivalent shader performance. To compare, we must continue to look at the memory bandwidth, Texture and Pixel Rates. In this case, we sadly do not have enough data in this area to complete the comparison.

The Quadro FX 1600M requires 50 Watts to run but there is no entry for the Radeon HD 6645G2.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed-vs625 MHz
Boost Clock-vs-
ArchitectureTerrascale 2G84M
OC Potential - vs -
Driver Support - vs -
Release Date14 Jun 2011vs01 Jun 2007
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory-vs512 MB
Memory Speed667 MHzvs800 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsGDDR3
Memory Bandwidth21.3GB/secvs25.6GB/sec
L2 Cache - vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units560vs-
Actual Shader Performance-vs-
Technology-vs80nm
Texture Mapping Units-vs-
Texture Rate-vs-
Render Output Units-vs-
Pixel Rate-vs-
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs-
DVI Connections0vs-
HDMI Connections0vs-
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power-50 Watts
Recommended PSU--

GPU Features

DirectX11vs10
Shader Model5.0vs4.0
Open GL4.1vs2.1
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfirenovsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended Processor--
Recommended RAM--
Maximum Recommended Gaming Resolution--

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 6645G2 is a combination of an entry/middle class level AMD Radeon HD 6490M and an integrated AMD Radeon HD 6620G (APU). This system is known as AMD Dual Graphics and also asymmetric CrossFire. It uses Alternate Frame Rendering (AFR) to render different frames on the two graphic cores and can suffer from micro-Stuttering.
The performance relies on solid driver support and, at times, it might even be worse the performance of the Radeon HD 6490M by itself. Only DX10 & DX11 modes are supported which means a game set with lower settings and not set to use DX10/DX11 is not accelerated (does not make use of the asymmetric crossfire feature within the card).
Due to the micro stuttering and performance problems, Dual Graphics may sometimes cause more problems than the possible dual card performance gains they suggest.
The Quadro line of GPU cards emerged in an effort at market segmentation by NVIDIA. In introducing Quadro, NVIDIA was able to charge a premium for essentially the same graphics hardware in professional markets, and direct resources to properly serve the needs of those markets. To differentiate their offerings, NVIDIA used driver software and firmware to enable features vital to segments of the workstation market; e.g., high performance anti-aliased lines and two-sided lighting were reserved for the Quadro product. In addition, improved support through a certified driver program was put in place. These features were of little value in the gaming markets that NVIDIA's products already sold to, but prevented high end customers from using the less expensive products. This practice continues even today although some products use higher capacity faster memory.
Recommended CPU
-
-
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-

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