AMD Radeon R9 255 OEM vs ATI Mobility Radeon HD 4870

Comparative analysis of AMD Radeon R9 255 OEM and ATI Mobility Radeon HD 4870 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G2D Mark, PassMark - G3D Mark, Geekbench - OpenCL, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

AMD Radeon R9 255 OEM

ATI Mobility Radeon HD 4870

Differences

Reasons to consider the AMD Radeon R9 255 OEM

Videocard is newer: launch date 4 year(s) 11 month(s) later
Around 64% higher core clock speed: 900 MHz vs 550 MHz
Around 35% higher texture fill rate: 29.76 GTexel / s vs 22 GTexel / s
Around 8% better floating-point performance: 952.3 gflops vs 880.0 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 55 nm
4x more maximum memory size: 2 GB vs 512 MB
2.6x more memory clock speed: 4600 MHz vs 1776 MHz
Around 93% better performance in PassMark - G3D Mark: 1392 vs 720

Specifications (specs)
Launch date	21 December 2013 vs 9 January 2009
Core clock speed	900 MHz vs 550 MHz
Texture fill rate	29.76 GTexel / s vs 22 GTexel / s
Floating-point performance	952.3 gflops vs 880.0 gflops
Manufacturing process technology	28 nm vs 55 nm
Maximum memory size	2 GB vs 512 MB
Memory clock speed	4600 MHz vs 1776 MHz
Benchmarks
PassMark - G3D Mark	1392 vs 720

Reasons to consider the ATI Mobility Radeon HD 4870

Around 56% higher pipelines: 800 vs 512
Around 10% better performance in PassMark - G2D Mark: 416 vs 379

Specifications (specs)
Pipelines	800 vs 512
Benchmarks
PassMark - G2D Mark	416 vs 379
GFXBench 4.0 - T-Rex (Frames)	3350 vs 3346
GFXBench 4.0 - T-Rex (Fps)	3350 vs 3346

Compare benchmarks

GPU 1: AMD Radeon R9 255 OEM
GPU 2: ATI Mobility Radeon HD 4870

PassMark - G2D Mark

GPU 1

GPU 2

379

416

PassMark - G3D Mark

GPU 1

GPU 2

1392

720

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3346

3350

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3346

3350

Name	AMD Radeon R9 255 OEM	ATI Mobility Radeon HD 4870
PassMark - G2D Mark	379	416
PassMark - G3D Mark	1392	720
Geekbench - OpenCL	40722
GFXBench 4.0 - Car Chase Offscreen (Frames)	3112
GFXBench 4.0 - Car Chase Offscreen (Fps)	3112
GFXBench 4.0 - Manhattan (Frames)	3168
GFXBench 4.0 - Manhattan (Fps)	3168
GFXBench 4.0 - T-Rex (Frames)	3346	3350
GFXBench 4.0 - T-Rex (Fps)	3346	3350

Compare specifications (specs)

	AMD Radeon R9 255 OEM	ATI Mobility Radeon HD 4870
Essentials
Architecture	GCN 1.0	TeraScale
Code name	Cape Verde	M98
Launch date	21 December 2013	9 January 2009
Place in performance rating	604	607
Type	Desktop	Laptop
Technical info
Boost clock speed	930 MHz
Core clock speed	900 MHz	550 MHz
Floating-point performance	952.3 gflops	880.0 gflops
Manufacturing process technology	28 nm	55 nm
Pipelines	512	800
Texture fill rate	29.76 GTexel / s	22 GTexel / s
Thermal Design Power (TDP)	65 Watt
Transistor count	1,500 million	956 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Supplementary power connectors	1x 6-pin
Laptop size		large
API support
DirectX	12.0 (11_1)	10.1
OpenGL	4.5	3.3
Memory
Maximum RAM amount	2 GB	512 MB
Memory bandwidth	73.6 GB / s	56.8 GB / s
Memory bus width	128 Bit	256 Bit
Memory clock speed	4600 MHz	1776 MHz
Memory type	GDDR5	GDDR5
Shared memory		0
Technologies
1x Dual-Link/Single-Link DVI
1x Single-Link DVI Support (all display ports have to be supported by the laptop manufacturer)
DisplayPort support up to 2560x1600
HDMI support up to 1920x1080 (both with 7.1 AC3 Audio)
PCI-E 2.0 x16
Powerplay