Radeon HD 6490 vs GeForce 9800 GX2

Primary details

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

Place in performance ranking	834	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.09	no data
Architecture	Tesla (2006−2010)	TeraScale 2 (2009−2015)
GPU code name	G92	Redwood
Market segment	Desktop	Desktop
Release date	18 March 2008 (16 years ago)	4 July 2011 (12 years ago)
Launch price (MSRP)	$599	no data
Current price	$140 (0.2x MSRP)	$800

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	128	320
CUDA cores	256 (128 per GPU)	no data
Core clock speed	600 MHz	550 MHz
Number of transistors	754 million	627 million
Manufacturing process technology	65 nm	40 nm
Power consumption (TDP)	197 Watt	39 Watt
Maximum GPU temperature	105 °C	no data
Texture fill rate	76.8 billion/sec	8.800
Floating-point performance	2x 384.0 gflops	352.0 gflops

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).

Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	10.5" (26.7 cm)	165 mm
Height	2-slot	no data
Width	2-slot	1-slot
Supplementary power connectors	6-pin & 8-pin	None
SLI options	+	no data

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 type	GDDR3	DDR2
Maximum RAM amount	512 MB	1 GB
Memory bus width	512 Bit	128 Bit
Memory clock speed	1000 MHz	1000 MHz
Memory bandwidth	128 (64 per GPU)	16 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 Connectors	HDMIDual Link DVI	1x DVI, 1x HDMI, 1x VGA
Multi monitor support	+	no data
HDMI	+	+
Maximum VGA resolution	2048x1536	no data
Audio input for HDMI	S/PDIF	no data

API compatibility

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

DirectX	11.1 (10_0)	11.2 (11_0)
Shader Model	4.0	5.0
OpenGL	2.1	4.4
OpenCL	1.1	1.2
Vulkan	N/A	N/A
CUDA	+	no data

Pros & cons summary

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Recency	18 March 2008	4 July 2011
Maximum RAM amount	512 MB	1 GB
Chip lithography	65 nm	40 nm
Power consumption (TDP)	197 Watt	39 Watt

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