Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 8450G GeForce GTX 660M
Red Dead Redemption 2 1911% 435%
Halo: Reach 539% 70%
Cyberpunk 2077 2663% 635%
Call of Duty: Modern Warfare 1911% 435%
Doom Eternal 1629% 360%
Microsoft Flight Simulator 2663% 635%
Warcraft 3: Reforged 23% 79%
Grand Theft Auto VI 2973% 718%
Star Wars: Jedi - Fallen Order 2663% 635%
Dragon Ball Z Kakarot 1141% 230%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660M are massively better than the AMD Radeon HD 8450G.

The Radeon HD 8450G was released less than a year after the GeForce GTX 660M, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce GTX 660M has 2048 MB video memory, but the Radeon HD 8450G does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Radeon HD 8450G has 192 Shader Processing Units and the GeForce GTX 660M has 384. However, the actual shader performance of the Radeon HD 8450G is 102 and the actual shader performance of the GeForce GTX 660M is 365. The GeForce GTX 660M having 263 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce GTX 660M delivers a significantly smoother and more efficient experience when processing graphical data than the Radeon HD 8450G.

The Radeon HD 8450G requires 35 Watts to run and the GeForce GTX 660M requires 50 Watts. The GeForce GTX 660M requires 15 Watts more than the Radeon HD 8450G to run. The difference is not significant enough for the GeForce GTX 660M to have a noticeably larger impact on your yearly electricity bills than the Radeon HD 8450G.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed533 MHzvs835 MHz
Boost Clock-vs950 MHz
ArchitectureTerascale 3Kepler GK107-N13E-GE-A2
OC Potential - vs Poor
Driver Support - vs Good
Release Date12 Mar 2013vs22 Mar 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - vs green tick
7.9
1600x900 - vs green tick
5.9
1920x1080 - vs green tick
4.4
2560x1440 - vs green tick
2.8
3840x2160 - vs green tick
1.8

GPU Memory

MemoryN/Avs2048 MB
Memory Speed800 MHzvs1000 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth25.6GB/secvs64GB/sec
L2 Cache - vs green tick 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units192vs384
Actual Shader Performance5%vs18%
Technology-vs28nm
Texture Mapping Units-vs32
Texture Rate-vs26.7 GTexel/s
Render Output Units-vs16
Pixel Rate-vs13.4 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power35 Wattsvs50 Watts
Recommended PSU--

GPU Features

DirectX11.1vs12.0
Shader Model5.0vs5.0
Open GL4.2vs4.5
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfirenovsyes
Dedicatednovsyes
Comparison

GPU Supporting Hardware

Recommended Processor-Intel Core i5-3360M 2.8GHz
Recommended RAM-8 GB
Maximum Recommended Gaming Resolution-1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 8450G is an integrated mobile GPU, first seen on the APU A6-5350M, based on the 32nm, Terascale 3 architecture.
It offer 192 Shader Processing Units, 12 TMUs and 4 ROPs, on a DDR3 memory interface of either a 128-bit bus width, if the laptop system RAM's is dual-channelled, or a 64-bit bus width, if not. The central units runs at 533MHz and goes up to 720MHz, in Turbo Mode. The memory clock can operate up to 800MHz, as the max memory supported by the CPU is DDR3-1600.
Its performance depends somewhat on whether or not the memory is dual-channelled. Benchmarks put its performance on level with today's entry-level dedicated GPUs such as GeForce GT 610M or Radeon HD 7470M. Therefore, modern some demanding games can be played with medium detail but most will require further reduced settings.
Overview
GeForce GTX 660M is a Fast-Middle-Class Mobile Graphics Card based on the first revision of the Kepler Architecture.

Architecture
The Kepler Architecture was NVIDIA's big step to power efficiency. Each Stream Multiprocessor (SMX) now hosts 192 Shader Processing Units - against the 48 of older Fermi Architecture, and has been redesigned being now clocked at the same speed of the Central Unit. This means they are more energy efficient and will consequently lead to cooler operating temperatures. However, it also means they are weaker. It can be said that one Fermi SMX is as fast as 2 Kepler SMXs.
Additionally, and not available in all GPUs, Kepler also introduced the Boost Clock Feature. The Boost Clock is an even higher Clock Speed activated when in gaming mode and becomes the effective speed of the GPU.

GPU
It equips a GPU Codenamed GK107-N13E-GE-A2 which has 2 Stream Multiprocessors activated and thus offers 384 Shader Processing Units, 32 TMUs and 16 ROPs. The Central Unit is initially clocked at 835MHz and goes up to 950MHz, in Turbo Mode.

Memory
The GPU accesses a 2GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is exaggerated and no way benefits the GPU. The Memory Clock Operates at 1000MHz.

Features
DirectX 11.0 Support (11.0 Hardware Default) and support for SLI, Kepler Boost, Optimus, CUDA, OpenCL, DirectCompute, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

Power Consumption
With a rated board TDP of 45W, it is suited for average sized laptops.

Performance
Gaming benchmarks indicate its performance is not too far from the desktop GeForce GTX 650.

System Suggestions
We recommend a decent processor (Intel Core i5 Mobile) and 8GB of RAM for a system with GeForce GTX 660M.
Recommended CPU
-
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-

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