G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Overview

The Radeon HD 6490M is manufactured by AMD. It was released in January 4 2011. It features the TeraScale 2 architecture. The core clock speed is 680 MHz. It has 960 shading units. The thermal design power (TDP) is 75W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 378 points.

Value Upgrade Path

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Performance Per Dollar

Based on actual market prices and performance benchmarks.

FPS Benchmarks

Predicted performance for Radeon HD 6490M across popular games. Tested paired with Ryzen 7 7800X3D to isolate GPU performance.

Technical Analysis

Detailed breakdown of Radeon HD 6490M specifications and capabilities.

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Graphics Performance

The Radeon HD 6490M scores 378 in the G3D Mark benchmark (the standard measure of rasterization GPU performance), placing it in the Entry Level tier as a Legacy generation graphics card. It is built on the TeraScale 2 (2009−2015) architecture (codename: Blackcomb), manufactured on a 40 nm process— smaller process nodes improve power efficiency and transistor density. It packs 960 shader units (the primary compute units for rendering pixels), 48 TMUs (texture mapping units), and 32 ROPs (render output units that handle final pixel output). Raw FP32 compute power: 1.306 TFLOPS — this measures the theoretical peak floating-point performance.

Specification	Radeon HD 6490M
G3D MarkPassMark 3D graphics benchmark score	378
ArchitectureGPU microarchitecture generation	TeraScale 2 (2009−2015)
CodenameInternal GPU die codename	Blackcomb
Manufacturing ProcessFabrication node — smaller = more efficient	40 nm
Shader UnitsCore compute units for rendering/compute	960
TMUsTexture Mapping Units — handle texture sampling	48
ROPsRender Output Units — final pixel/color blending	32
Base ClockGuaranteed minimum GPU frequency	680 MHz
Compute (FP32)Peak single-precision floating-point performance	1.306 TFLOPS
Texture Fill RateTextures processed per second	32.64 GTexel/s
PCIe InterfaceCPU↔GPU data link generation	IGP
Transistor Count	1,700 million
Performance RankPosition in global GPU performance ranking	#654

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Video Memory (VRAM)

The Radeon HD 6490M is equipped with 0.5 GB of Shared video memory connected via a System memory bus, delivering System of bandwidth.

Specification	Radeon HD 6490M
VRAM SizeVideo memory capacity — more = better for high-res textures	0.5 GB
VRAM TypeMemory technology generation	Shared
Memory BusWidth of data path — wider = more bandwidth	System
BandwidthMaximum data throughput between GPU and VRAM	System
L1 Cache	192 kB
L2 Cache	512 kB

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Advanced Features & APIs

The Radeon HD 6490M supports modern upscaling and frame generation technologies: FidelityFX Super Resolution — these can dramatically boost effective FPS by generating intermediate frames or upscaling from lower internal resolution.

Specification	Radeon HD 6490M
FSR Frame Generation	❌ Not Supported
AMD Fluid Motion Frames	❌ Not Supported
FidelityFX Super Resolution	✅ Supported

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Display & Media

Display outputs: .

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Power & Dimensions

The Radeon HD 6490M draws 75 Watt under load (TDP) — a 350W PSU minimum is recommended. Power connector: 1x 6-pin.

Specification	Radeon HD 6490M
TDPPower consumption under load	75 Watt
Recommended PSUMinimum power supply wattage	350W
Power ConnectorRequired PCIe power cable type	1x 6-pin

Specifications Reference

Raw spec sheet for quick lookup. The analysis cards above explain what these fields mean in practice.

2 categories

Technical Specifications

19 specs

ROPs	32
TMUs	48
Vram	0.5 GB
DLSS/FSR	FSR upscaling
L1 Cache	192 kB
L2 Cache	512 kB
Core Clock	680 MHz
Memory Type	Shared
Shading Units	960
Upscaling Tech	AMD FidelityFX Super Resolution (FSR)
PCIe Generation	IGP
Memory Bandwidth	System
Memory Bus Width	System
Transistor Count	1,700 million
Frame Generation	FSR Frame Generation: No \| AMD Fluid Motion Frames: No \| FidelityFX Super Resolution: Yes
Texture Fill Rate	32.64
Manufacturing Process	40 nm
Power Consumption (TDP)	75 Watt
Floating Point Performance	1.306 TFLOPS