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Gaming Performance Comparison

Recommended System Requirements
Game GeForce 8600 GT 512MB GDDR3 HD i5 661
Cyberpunk 2077 1514% 2603%
Hitman 3 2000% 3417%
Resident Evil 8 1514% 2603%
Assassins Creed: Valhalla 1376% 2372%
FIFA 21 714% 1264%
Grand Theft Auto VI 2171% 3704%
Call of Duty: Black Ops Cold War 1329% 2292%
Genshin Impact 1514% 2603%
Far Cry 6 2236% 3811%
The Medium 1914% 3273%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 8600 GT 512MB GDDR3 are significantly better than the Intel HD i5 661.

The HD i5 661 was released over a year more recently than the 8600 GT, and so the HD i5 661 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the 8600 GT.

The 8600 GT has 512 MB video memory, but the HD i5 661 does not have an entry, so the two GPUs cannot be reliably compared in this area.

The 8600 GT has 32 Shader Processing Units but the HD i5 661 does not have an entry, so the two GPUs cannot be reliably compared in this area.

The GeForce 8600 GT 512MB GDDR3 requires 46 Watts to run and the HD i5 661 requires 87 Watts. We would recommend a PSU with at least 350 Watts for the 8600 GT. The HD i5 661 requires 41 Watts more than the 8600 GT to run. The difference is significant enough that the HD i5 661 may have a slight adverse affect on your yearly electricity bills in comparison to the 8600 GT.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed540 MHzvs900 MHz
Boost Clock-vs-
ArchitectureTesla G84Clarkdale
OC Potential Poor vs None
Driver Support Poor vs -
Release Date01 Apr 2007vs30 Mar 2010
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
green tick vs -
green tick vs -
green tick vs -
green tick vs -

GPU Memory

Memory512 MBvsN/A
Memory Speed700 MHzvs667 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeGDDR3vsDDR3
Memory Bandwidth22.4GB/secvs10.7GB/sec
L2 Cache 0 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units32vs-
Actual Shader Performance2%vs-
Texture Mapping Units16vs-
Texture Rate8.6 GTexel/svs-
Render Output Units8vs-
Pixel Rate4.3 GPixel/svs-

GPU Outputs

Max Digital Resolution (WxH)-vs-
VGA Connections1vs-
DVI Connections1vs-
HDMI Connections1vs-
DisplayPort Connections-vs-

GPU Power Requirements

Max Power46 Wattsvs87 Watts
Recommended PSU350 Watts & 24 Amps-

GPU Features

Shader Model4.0vs4.0
Open GL3.3vs2.1
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core 2 Duo E6600 2.4GHz-
Recommended RAM3 GB-
Maximum Recommended Gaming Resolution1024x768-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce 8600 GT 512MB GDDR3 is one of the many variants of the fast-middle-class GeForce 8600 GT.
On this version, the GPU is equipped with 512MB of standard GDDR3. The architecture allows the use of 512MB, since the GPU's processing power is strong enough and the memory controller is up for the task of processing 512MB. Therefore, the performance is superior to the 256MB version and any other version of DDR2, including 1GB.
However, and due to its architecture limitations, modern demanding games will require reduced settings, even if they don't require more than 512MB of video ram. Very Demanding games like Metro 2033 are only playable at the lowest settings.
Intel HD i5 661 is a specific version of Intel GMA graphics that is built into the Intel Core i5 661 processor. This can handle most of the latest games like Call of Duty: Modern Warfare 3, Batman: Arkham City and The Elder Scrolls V: Skyrim on the lowest settings in a pretty good frame rate. Perfect fit for a non-hardcore gamer.
Recommended CPU
Possible GPU Upgrades
GPU Variants