NVIDIA GeForce GT 640 Rev. 2 vs ATI Radeon HD 4850

Comparative analysis of NVIDIA GeForce GT 640 Rev. 2 and ATI Radeon HD 4850 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: 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), PassMark - G3D Mark, PassMark - G2D Mark.

 

Differences

Reasons to consider the NVIDIA GeForce GT 640 Rev. 2

  • Videocard is newer: launch date 4 year(s) 11 month(s) later
  • Around 67% higher core clock speed: 1046 MHz vs 625 MHz
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 55 nm
  • 2.2x lower typical power consumption: 49 Watt vs 110 Watt
  • 2x more maximum memory size: 1 GB vs 512 MB
  • 2.5x more memory clock speed: 5008 MHz vs 1986 MHz
Launch date 29 May 2013 vs 25 June 2008
Core clock speed 1046 MHz vs 625 MHz
Manufacturing process technology 28 nm vs 55 nm
Thermal Design Power (TDP) 49 Watt vs 110 Watt
Maximum memory size 1 GB vs 512 MB
Memory clock speed 5008 MHz vs 1986 MHz

Reasons to consider the ATI Radeon HD 4850

  • Around 49% higher texture fill rate: 25 GTexel / s vs 16.74 GTexel / s
  • 2.1x more pipelines: 800 vs 384
  • Around 24% better floating-point performance: 1,000.0 gflops vs 803.3 gflops
  • Around 4% better performance in GFXBench 4.0 - T-Rex (Frames): 3344 vs 3220
  • Around 4% better performance in GFXBench 4.0 - T-Rex (Fps): 3344 vs 3220
Specifications (specs)
Texture fill rate 25 GTexel / s vs 16.74 GTexel / s
Pipelines 800 vs 384
Floating-point performance 1,000.0 gflops vs 803.3 gflops
Benchmarks
GFXBench 4.0 - T-Rex (Frames) 3344 vs 3220
GFXBench 4.0 - T-Rex (Fps) 3344 vs 3220

Compare benchmarks

GPU 1: NVIDIA GeForce GT 640 Rev. 2
GPU 2: ATI Radeon HD 4850

GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3220
3344
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3220
3344
Name NVIDIA GeForce GT 640 Rev. 2 ATI Radeon HD 4850
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 10.475
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 173.537
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.032
CompuBench 1.5 Desktop - Video Composition (Frames/s) 8.717
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 10.454
GFXBench 4.0 - Car Chase Offscreen (Frames) 2309
GFXBench 4.0 - Manhattan (Frames) 3354
GFXBench 4.0 - T-Rex (Frames) 3220 3344
GFXBench 4.0 - Car Chase Offscreen (Fps) 2309
GFXBench 4.0 - Manhattan (Fps) 3354
GFXBench 4.0 - T-Rex (Fps) 3220 3344
PassMark - G3D Mark 934
PassMark - G2D Mark 79

Compare specifications (specs)

NVIDIA GeForce GT 640 Rev. 2 ATI Radeon HD 4850

Essentials

Architecture Kepler 2.0 TeraScale
Code name GK208 RV770
Launch date 29 May 2013 25 June 2008
Launch price (MSRP) $89 $199
Place in performance rating 1275 1278
Type Desktop Desktop

Technical info

Core clock speed 1046 MHz 625 MHz
Floating-point performance 803.3 gflops 1,000.0 gflops
Manufacturing process technology 28 nm 55 nm
Pipelines 384 800
Texture fill rate 16.74 GTexel / s 25 GTexel / s
Thermal Design Power (TDP) 49 Watt 110 Watt
Transistor count 956 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 x8 PCIe 2.0 x16
Length 145 mm 246 mm
Supplementary power connectors None 1x 6-pin

API support

DirectX 12.0 (11_0) 10.1
OpenGL 4.6 3.3

Memory

Maximum RAM amount 1 GB 512 MB
Memory bandwidth 40.06 GB / s 63.6 GB / s
Memory bus width 64 Bit 256 Bit
Memory clock speed 5008 MHz 1986 MHz
Memory type GDDR5 GDDR3