ATI Radeon X1600 XT Dual vs HD 6790

Primary details

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

Place in the ranking	684	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.76	no data
Power efficiency	2.05	no data
Architecture	TeraScale 2 (2009−2015)	Ultra-Threaded SE (2005−2007)
GPU code name	Barts	RV530
Market segment	Desktop	Desktop
Release date	4 April 2011 (13 years ago)	no data
Launch price (MSRP)	$149	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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 cores	800	no data
Core clock speed	840 MHz	590 MHz
Number of transistors	1,700 million	157 million
Manufacturing process technology	40 nm	90 nm
Power consumption (TDP)	150 Watt	no data
Texture fill rate	33.60	2.360
Floating-point processing power	1.344 TFLOPS	no data
ROPs	16	4
TMUs	40	4

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 1.0 x16
Length	198 mm	no data
Width	2-slot	1-slot
Supplementary power connectors	2x 6-pin	1x Molex

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	GDDR5	GDDR3
Maximum RAM amount	1 GB	256 MB
Memory bus width	256 Bit	128 Bit
Memory clock speed	1050 MHz	1380 MBps
Memory bandwidth	134.4 GB/s	22.08 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	2x DVI, 1x HDMI, 1x DisplayPort	2x DVI
HDMI	+	-

API compatibility

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

DirectX	11.2 (11_0)	9.0c (9_3)
Shader Model	5.0	3.0
OpenGL	4.4	2.1
OpenCL	1.2	N/A
Vulkan	N/A	N/A

Pros & cons summary

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Maximum RAM amount	1 GB	256 MB
Chip lithography	40 nm	90 nm

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