ATI Radeon X1950 CrossFire Edition vs HD 7770

Primary details

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

Place in the ranking	599	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.33	no data
Power efficiency	4.91	no data
Architecture	GCN 1.0 (2011−2020)	R500 (2005−2007)
GPU code name	Cape Verde	R580+
Market segment	Desktop	Desktop
Release date	15 February 2012 (12 years ago)	10 September 2006 (18 years ago)
Launch price (MSRP)	$159	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	640	no data
Core clock speed	1000 MHz	650 MHz
Number of transistors	1,500 million	384 million
Manufacturing process technology	28 nm	90 nm
Power consumption (TDP)	80 Watt	no data
Texture fill rate	40.00	10.40
Floating-point processing power	1.28 TFLOPS	no data
ROPs	16	16
TMUs	40	16

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 3.0 x16	PCIe 1.0 x16
Length	210 mm	no data
Width	2-slot	2-slot
Supplementary power connectors	1x 6-pin	1x 6-pin

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	GDDR4
Maximum RAM amount	2 GB	512 MB
Memory bus width	128 Bit	256 Bit
Memory clock speed	1125 MHz	1000 MHz
Memory bandwidth	72 GB/s	64 GB/s
Shared memory	-	-

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	1x DVI, 1x HDMI, 2x mini-DisplayPort	1x DVI, 1x VHDCI
Eyefinity	+	-
HDMI	+	-

API compatibility

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

DirectX	12 (11_1)	9.0c (9_3)
Shader Model	5.1	3.0
OpenGL	4.6	2.0
OpenCL	1.2	N/A
Vulkan	1.2.131	N/A

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

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Pros & cons summary

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Recency	15 February 2012	10 September 2006
Maximum RAM amount	2 GB	512 MB
Chip lithography	28 nm	90 nm

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