ATI Radeon HD 4855 vs NVIDIA GeForce GTX 260 OEM

Comparative analysis of ATI Radeon HD 4855 and NVIDIA GeForce GTX 260 OEM videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory.

ATI Radeon HD 4855

NVIDIA GeForce GTX 260 OEM

Differences

Reasons to consider the ATI Radeon HD 4855

Around 11% higher core clock speed: 575 MHz vs 518 MHz
3.3x more pipelines: 640 vs 192
Around 77% better floating-point performance: 736.0 gflops vs 414.7 gflops
Around 65% lower typical power consumption: 110 Watt vs 182 Watt
Around 79% higher memory clock speed: 3600 MHz vs 2016 MHz

Core clock speed	575 MHz vs 518 MHz
Pipelines	640 vs 192
Floating-point performance	736.0 gflops vs 414.7 gflops
Thermal Design Power (TDP)	110 Watt vs 182 Watt
Memory clock speed	3600 MHz vs 2016 MHz

Reasons to consider the NVIDIA GeForce GTX 260 OEM

Around 80% higher texture fill rate: 33.2 GTexel / s vs 18.4 GTexel / s
3.5x more maximum memory size: 1792 MB vs 512 MB

Texture fill rate	33.2 GTexel / s vs 18.4 GTexel / s
Maximum memory size	1792 MB vs 512 MB

Compare specifications (specs)

	ATI Radeon HD 4855	NVIDIA GeForce GTX 260 OEM
Essentials
Architecture	TeraScale	Tesla 2.0
Code name	RV770	GT200B
Launch date	3 January 2010	8 December 2009
Place in performance rating	not rated	not rated
Type	Desktop	Desktop
Technical info
Core clock speed	575 MHz	518 MHz
Floating-point performance	736.0 gflops	414.7 gflops
Manufacturing process technology	55 nm	55 nm
Pipelines	640	192
Texture fill rate	18.4 GTexel / s	33.2 GTexel / s
Thermal Design Power (TDP)	110 Watt	182 Watt
Transistor count	956 million	1,400 million
Video outputs and ports
Display Connectors	1x DVI, 1x HDMI, 1x VGA	2x DVI, 1x S-Video
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	220 mm	267 mm
Supplementary power connectors	1x 6-pin	2x 6-pin
API support
DirectX	10.1	10.0
OpenGL	3.3	3.3
Memory
Maximum RAM amount	512 MB	1792 MB
Memory bandwidth	115.2 GB / s	112.9 GB / s
Memory bus width	256 Bit	448 Bit
Memory clock speed	3600 MHz	2016 MHz
Memory type	GDDR5	GDDR3