AMD Radeon R5 M255 vs NVIDIA GeForce GT 640 OEM
Comparative analysis of AMD Radeon R5 M255 and NVIDIA GeForce GT 640 OEM 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, Geekbench - OpenCL, 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).
Differences
Reasons to consider the AMD Radeon R5 M255
- Videocard is newer: launch date 2 year(s) 5 month(s) later
- Around 16% higher core clock speed: 925 MHz vs 797 MHz
- Around 18% better floating-point performance: 721.9 gflops vs 612.1 gflops
- 2x more maximum memory size: 4 GB vs 2 GB
- Around 44% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 14.288 vs 9.932
- Around 48% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 20.164 vs 13.613
- 4.3x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 66.631 vs 15.32
- Around 1% better performance in GFXBench 4.0 - T-Rex (Frames): 3357 vs 3334
- Around 1% better performance in GFXBench 4.0 - T-Rex (Fps): 3357 vs 3334
Specifications (specs) | |
Launch date | 12 October 2014 vs 24 April 2012 |
Core clock speed | 925 MHz vs 797 MHz |
Floating-point performance | 721.9 gflops vs 612.1 gflops |
Maximum memory size | 4 GB vs 2 GB |
Benchmarks | |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 14.288 vs 9.932 |
CompuBench 1.5 Desktop - Video Composition (Frames/s) | 20.164 vs 13.613 |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 66.631 vs 15.32 |
GFXBench 4.0 - T-Rex (Frames) | 3357 vs 3334 |
GFXBench 4.0 - T-Rex (Fps) | 3357 vs 3334 |
Reasons to consider the NVIDIA GeForce GT 640 OEM
- Around 13% higher texture fill rate: 25.5 GTexel / s vs 22.56 GTexel / s
- Around 20% higher pipelines: 384 vs 320
- Around 78% higher memory clock speed: 1782 MHz vs 1000 MHz
- Around 53% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 254.345 vs 166.596
- Around 15% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.14 vs 0.988
- Around 3% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 1502 vs 1459
- Around 26% better performance in GFXBench 4.0 - Manhattan (Frames): 2167 vs 1715
- Around 3% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 1502 vs 1459
- Around 26% better performance in GFXBench 4.0 - Manhattan (Fps): 2167 vs 1715
Specifications (specs) | |
Texture fill rate | 25.5 GTexel / s vs 22.56 GTexel / s |
Pipelines | 384 vs 320 |
Memory clock speed | 1782 MHz vs 1000 MHz |
Benchmarks | |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 254.345 vs 166.596 |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 1.14 vs 0.988 |
GFXBench 4.0 - Car Chase Offscreen (Frames) | 1502 vs 1459 |
GFXBench 4.0 - Manhattan (Frames) | 2167 vs 1715 |
GFXBench 4.0 - Car Chase Offscreen (Fps) | 1502 vs 1459 |
GFXBench 4.0 - Manhattan (Fps) | 2167 vs 1715 |
Compare benchmarks
GPU 1: AMD Radeon R5 M255
GPU 2: NVIDIA GeForce GT 640 OEM
CompuBench 1.5 Desktop - Face Detection (mPixels/s) |
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CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) |
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CompuBench 1.5 Desktop - T-Rex (Frames/s) |
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CompuBench 1.5 Desktop - Video Composition (Frames/s) |
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CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) |
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GFXBench 4.0 - Car Chase Offscreen (Frames) |
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GFXBench 4.0 - Manhattan (Frames) |
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GFXBench 4.0 - T-Rex (Frames) |
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GFXBench 4.0 - Car Chase Offscreen (Fps) |
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GFXBench 4.0 - Manhattan (Fps) |
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GFXBench 4.0 - T-Rex (Fps) |
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Name | AMD Radeon R5 M255 | NVIDIA GeForce GT 640 OEM |
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PassMark - G3D Mark | 541 | |
PassMark - G2D Mark | 133 | |
Geekbench - OpenCL | 4720 | |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 14.288 | 9.932 |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 166.596 | 254.345 |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.988 | 1.14 |
CompuBench 1.5 Desktop - Video Composition (Frames/s) | 20.164 | 13.613 |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 66.631 | 15.32 |
GFXBench 4.0 - Car Chase Offscreen (Frames) | 1459 | 1502 |
GFXBench 4.0 - Manhattan (Frames) | 1715 | 2167 |
GFXBench 4.0 - T-Rex (Frames) | 3357 | 3334 |
GFXBench 4.0 - Car Chase Offscreen (Fps) | 1459 | 1502 |
GFXBench 4.0 - Manhattan (Fps) | 1715 | 2167 |
GFXBench 4.0 - T-Rex (Fps) | 3357 | 3334 |
Compare specifications (specs)
AMD Radeon R5 M255 | NVIDIA GeForce GT 640 OEM | |
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Essentials |
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Architecture | GCN 3.0 | Kepler |
Code name | Topaz | GK107 |
Design | AMD Radeon R5 200 Series | |
Launch date | 12 October 2014 | 24 April 2012 |
Place in performance rating | 1365 | 1368 |
Type | Desktop | Desktop |
Technical info |
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Boost clock speed | 940 MHz | |
Compute units | 5 | |
Core clock speed | 925 MHz | 797 MHz |
Floating-point performance | 721.9 gflops | 612.1 gflops |
Manufacturing process technology | 28 nm | 28 nm |
Pipelines | 320 | 384 |
Texture fill rate | 22.56 GTexel / s | 25.5 GTexel / s |
Transistor count | 3,100 million | 1,270 million |
Thermal Design Power (TDP) | 50 Watt | |
Video outputs and ports |
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Display Connectors | No outputs | 1x DVI, 1x HDMI, 1x DisplayPort |
Compatibility, dimensions and requirements |
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Bus support | PCIe 3.0 x8 | |
Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
Length | 145 mm | |
Supplementary power connectors | None | |
API support |
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DirectX | 11 | 12.0 (11_0) |
Mantle | ||
OpenCL | Not Listed | |
OpenGL | 4.4 | 4.6 |
Memory |
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Maximum RAM amount | 4 GB | 2 GB |
Memory bandwidth | 16 GB/s | 28.51 GB / s |
Memory bus width | 64 bit | 128 Bit |
Memory clock speed | 1000 MHz | 1782 MHz |
Memory type | DDR3 | DDR3 |
Shared memory | 0 | |
Technologies |
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AMD Eyefinity | ||
AppAcceleration | ||
DualGraphics | ||
Enduro | ||
HD3D | ||
Powerplay | ||
PowerTune | ||
Switchable graphics | ||
ZeroCore |