AMD Radeon HD 7870 XT vs ATI Mobility Radeon HD 4830

Comparative analysis of AMD Radeon HD 7870 XT and ATI Mobility Radeon HD 4830 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 - G3D Mark, PassMark - G2D Mark, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Graphics Score.

 

Differences

Reasons to consider the AMD Radeon HD 7870 XT

  • Videocard is newer: launch date 3 year(s) 8 month(s) later
  • Around 68% higher core clock speed: 925 MHz vs 550 MHz
  • 5.3x more texture fill rate: 93.6 GTexel / s vs 17.6 GTexel / s
  • 2.4x more pipelines: 1536 vs 640
  • 4.3x better floating-point performance: 2,995 gflops vs 704.0 gflops
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
  • 2x more maximum memory size: 2 GB vs 1 GB
  • 2.1x more memory clock speed: 6000 MHz vs 2800 MHz
  • 8.7x better performance in PassMark - G3D Mark: 4470 vs 512
  • 2.3x better performance in PassMark - G2D Mark: 661 vs 285
Specifications (specs)
Launch date 19 November 2012 vs 3 March 2009
Core clock speed 925 MHz vs 550 MHz
Texture fill rate 93.6 GTexel / s vs 17.6 GTexel / s
Pipelines 1536 vs 640
Floating-point performance 2,995 gflops vs 704.0 gflops
Manufacturing process technology 28 nm vs 40 nm
Maximum memory size 2 GB vs 1 GB
Memory clock speed 6000 MHz vs 2800 MHz
Benchmarks
PassMark - G3D Mark 4470 vs 512
PassMark - G2D Mark 661 vs 285

Compare benchmarks

GPU 1: AMD Radeon HD 7870 XT
GPU 2: ATI Mobility Radeon HD 4830

PassMark - G3D Mark
GPU 1
GPU 2
4470
512
PassMark - G2D Mark
GPU 1
GPU 2
661
285
Name AMD Radeon HD 7870 XT ATI Mobility Radeon HD 4830
PassMark - G3D Mark 4470 512
PassMark - G2D Mark 661 285
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 65.399
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 1230.47
CompuBench 1.5 Desktop - T-Rex (Frames/s) 6.371
CompuBench 1.5 Desktop - Video Composition (Frames/s) 78.519
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 345.793
GFXBench 4.0 - Car Chase Offscreen (Frames) 2810
GFXBench 4.0 - Manhattan (Frames) 3264
GFXBench 4.0 - T-Rex (Frames) 3354
GFXBench 4.0 - Car Chase Offscreen (Fps) 2810
GFXBench 4.0 - Manhattan (Fps) 3264
GFXBench 4.0 - T-Rex (Fps) 3354
3DMark Fire Strike - Graphics Score 1745

Compare specifications (specs)

AMD Radeon HD 7870 XT ATI Mobility Radeon HD 4830

Essentials

Architecture GCN 1.0 TeraScale
Code name Tahiti M97
Launch date 19 November 2012 3 March 2009
Launch price (MSRP) $270
Place in performance rating 545 543
Type Desktop Laptop

Technical info

Boost clock speed 975 MHz
Core clock speed 925 MHz 550 MHz
Floating-point performance 2,995 gflops 704.0 gflops
Manufacturing process technology 28 nm 40 nm
Pipelines 1536 640
Texture fill rate 93.6 GTexel / s 17.6 GTexel / s
Thermal Design Power (TDP) 185 Watt
Transistor count 4,313 million 826 million

Video outputs and ports

Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort No outputs

Compatibility, dimensions and requirements

Interface PCIe 3.0 x16 PCIe 2.0 x16
Length 267 mm
Supplementary power connectors 2x 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 1 GB
Memory bandwidth 192.0 GB / s 44.8 GB / s
Memory bus width 256 Bit 128 Bit
Memory clock speed 6000 MHz 2800 MHz
Memory type GDDR5 GDDR3, DDR3
Shared memory 0

Technologies

CrossFire
Powerplay