AMD Radeon HD 6490 vs NVIDIA GeForce 8800 GTX

General info

Comparison of graphics card architecture, market segment, value for money and other general parameters.

Place in performance rating	852	not rated
Value for money	0.79	no data
Architecture	Tesla (2006−2010)	TeraScale 2 (2009−2015)
GPU code name	G80	Redwood
Market segment	Desktop	Desktop
Release date	8 November 2006 (16 years old)	4 July 2011 (11 years old)
Launch price (MSRP)	$599	no data
Current price	$95 (0.2x MSRP)	$800

Technical specs

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	575	no data
Core clock speed	576 MHz	550 MHz
Number of transistors	681 million	627 million
Manufacturing process technology	90 nm	40 nm
Thermal design power (TDP)	155 Watt	39 Watt
Texture fill rate	36.8 billion/sec	8.800
Floating-point performance	345.6 gflops	352.0 gflops

Compatibility, dimensions and requirements

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

Interface	PCIe 1.0 x16	PCIe 2.0 x16
Length	270 mm	165 mm
Width	2-slot	1-slot
Supplementary power connectors	2x 6-pin	None
SLI options	+	no data

Memory

Parameters of memory installed: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated VRAM and use a shared part of system RAM.

Memory type	GDDR3	DDR2
Maximum RAM amount	768 MB	1 GB
Memory bus width	384 Bit	128 Bit
Memory clock speed	900 MHz	1000 MHz
Memory bandwidth	86.4 GB/s	16 GB/s

Video outputs and ports

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	2x DVI, 1x S-Video	1x DVI, 1x HDMI, 1x VGA
HDMI	no data	+

API support

APIs supported, including particular versions of those APIs.

DirectX	11.1 (10_0)	11.2 (11_0)
Shader Model	4.0	5.0
OpenGL	3.3	4.4
OpenCL	1.1	1.2
Vulkan	N/A	N/A
CUDA	+	no data

Advantages and disadvantages

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Recency	8 November 2006	4 July 2011
Memory bus width	384	128
Memory bandwidth	86.4	16
Pipelines / CUDA cores	128	320
Chip lithography	90 nm	40 nm
Thermal design power (TDP)	155 Watt	39 Watt

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