Radeon HD 8490 OEM vs GeForce 8600 GS

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureTesla (2006−2010)TeraScale 2 (2009−2015)
GPU code nameG84Caicos
Market segmentDesktopDesktop
Release date17 April 2007 (17 years ago)23 July 2013 (11 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores16160
Core clock speed540 MHz875 MHz
Number of transistors289 million370 million
Manufacturing process technology80 nm40 nm
Power consumption (TDP)47 Watt35 Watt
Texture fill rate4.3207.000
Floating-point processing power0.03808 TFLOPS0.28 TFLOPS
ROPs84
TMUs88

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 1.0 x16PCIe 2.0 x16
Lengthno data168 mm
Width1-slot1-slot
Supplementary power connectorsNoneNone

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeDDR2DDR3
Maximum RAM amount512 MB1 GB
Memory bus width128 Bit64 Bit
Memory clock speed400 MHz900 MHz
Memory bandwidth12.8 GB/s14.4 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x DVI, 1x VGA, 1x S-Video1x DVI, 1x DisplayPort

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX11.1 (10_0)11.2 (11_0)
Shader Model4.05.0
OpenGL3.34.4
OpenCL1.11.2
VulkanN/AN/A
CUDA1.1-

Pros & cons summary


Recency 17 April 2007 23 July 2013
Maximum RAM amount 512 MB 1 GB
Chip lithography 80 nm 40 nm
Power consumption (TDP) 47 Watt 35 Watt

HD 8490 OEM has an age advantage of 6 years, a 100% higher maximum VRAM amount, a 100% more advanced lithography process, and 34.3% lower power consumption.

We couldn't decide between GeForce 8600 GS and Radeon HD 8490 OEM. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA GeForce 8600 GS
GeForce 8600 GS
AMD Radeon HD 8490 OEM
Radeon HD 8490 OEM

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Community ratings

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3.3 32 votes

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Questions & comments

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