AMD Radeon RX 640 vs AMD Radeon 540X Mobile

Comparative analysis of AMD Radeon RX 640 and AMD Radeon 540X Mobile 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: GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), Geekbench - OpenCL, PassMark - G2D Mark, PassMark - G3D Mark.

 

Differences

Reasons to consider the AMD Radeon RX 640

  • Videocard is newer: launch date 1 year(s) 1 month(s) later
  • Around 31% better performance in GFXBench 4.0 - Manhattan (Frames): 1763 vs 1349
  • Around 31% better performance in GFXBench 4.0 - Manhattan (Fps): 1763 vs 1349
  • Around 6% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 3278 vs 3100
  • Around 6% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 3278 vs 3100
  • Around 25% better performance in Geekbench - OpenCL: 10548 vs 8445
Specifications (specs)
Launch date 13 May 2019 vs 3 April 2018
Benchmarks
GFXBench 4.0 - Manhattan (Frames) 1763 vs 1349
GFXBench 4.0 - Manhattan (Fps) 1763 vs 1349
GFXBench 4.0 - Car Chase Offscreen (Frames) 3278 vs 3100
GFXBench 4.0 - Car Chase Offscreen (Fps) 3278 vs 3100
Geekbench - OpenCL 10548 vs 8445

Reasons to consider the AMD Radeon 540X Mobile

  • Around 4% higher core clock speed: 1124 MHz vs 1082 MHz
  • 2x more maximum memory size: 4 GB vs 2 GB
  • 3.4x more memory clock speed: 6000 MHz vs 1750 MHz (7000 MHz effective)
  • Around 29% better performance in GFXBench 4.0 - T-Rex (Frames): 3054 vs 2365
  • Around 29% better performance in GFXBench 4.0 - T-Rex (Fps): 3054 vs 2365
  • Around 4% better performance in PassMark - G2D Mark: 265 vs 255
  • Around 1% better performance in PassMark - G3D Mark: 1374 vs 1364
Specifications (specs)
Core clock speed 1124 MHz vs 1082 MHz
Boost clock speed 1219 MHz vs 1218 MHz
Texture fill rate 39.00 GTexel/s vs 38.98 GTexel/s
Maximum memory size 4 GB vs 2 GB
Memory clock speed 6000 MHz vs 1750 MHz (7000 MHz effective)
Benchmarks
GFXBench 4.0 - T-Rex (Frames) 3054 vs 2365
GFXBench 4.0 - T-Rex (Fps) 3054 vs 2365
PassMark - G2D Mark 265 vs 255
PassMark - G3D Mark 1374 vs 1364

Compare benchmarks

GPU 1: AMD Radeon RX 640
GPU 2: AMD Radeon 540X Mobile

GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
1763
1349
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
1763
1349
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
2365
3054
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
2365
3054
GFXBench 4.0 - Car Chase Offscreen (Frames)
GPU 1
GPU 2
3278
3100
GFXBench 4.0 - Car Chase Offscreen (Fps)
GPU 1
GPU 2
3278
3100
Geekbench - OpenCL
GPU 1
GPU 2
10548
8445
PassMark - G2D Mark
GPU 1
GPU 2
255
265
PassMark - G3D Mark
GPU 1
GPU 2
1364
1374
Name AMD Radeon RX 640 AMD Radeon 540X Mobile
GFXBench 4.0 - Manhattan (Frames) 1763 1349
GFXBench 4.0 - Manhattan (Fps) 1763 1349
GFXBench 4.0 - T-Rex (Frames) 2365 3054
GFXBench 4.0 - T-Rex (Fps) 2365 3054
GFXBench 4.0 - Car Chase Offscreen (Frames) 3278 3100
GFXBench 4.0 - Car Chase Offscreen (Fps) 3278 3100
Geekbench - OpenCL 10548 8445
PassMark - G2D Mark 255 265
PassMark - G3D Mark 1364 1374

Compare specifications (specs)

AMD Radeon RX 640 AMD Radeon 540X Mobile

Essentials

Architecture GCN 4.0 GCN 4.0
Code name Arctic Islands Lexa
Launch date 13 May 2019 3 April 2018
Place in performance rating 846 851
Design Radeon 500X Series
GCN generation 4th Gen
Type Desktop, Laptop

Technical info

Boost clock speed 1218 MHz 1219 MHz
Compute units 8 8
Core clock speed 1082 MHz 1124 MHz
Manufacturing process technology 14 nm 14 nm
Peak Double Precision (FP64) Performance 77.95 GFLOPS
Peak Half Precision (FP16) Performance 1247 GFLOPS
Peak Single Precision (FP32) Performance 1247 GFLOPS
Pipelines 512 512
Pixel fill rate 19.49 GPixel/s 9.80 GP/s
Texture fill rate 38.98 GTexel/s 39.00 GTexel/s
Thermal Design Power (TDP) 50 Watt 50 Watt
Transistor count 2200 million 2,200 million
Floating-point performance 1.25 TFLOPs
Render output units 8
Stream Processors 512
Texture Units 32

Video outputs and ports

Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort No outputs
DisplayPort support
HDMI

Compatibility, dimensions and requirements

Interface PCIe 3.0 x8 PCIe 3.0 x8
Length 5.7 inches (145 mm)
Recommended system power (PSU) 350 Watt
Supplementary power connectors None
Width Dual-slot

API support

DirectX 12 12
OpenCL 2.0
OpenGL 4.6 4.5
Shader Model 6.4
Vulkan

Memory

Maximum RAM amount 2 GB 4 GB
Memory bandwidth 112.0 GB/s 48 GB/s
Memory bus width 128 bit 64 bit
Memory clock speed 1750 MHz (7000 MHz effective) 6000 MHz
Memory type GDDR5 GDDR5

Technologies

Unified Video Decoder (UVD)
Video Code Engine (VCE)
4K H264 Decode
4K H264 Encode
AMD Radeon™ Chill
AMD Radeon™ ReLive
AppAcceleration
FreeSync
H265/HEVC Decode
H265/HEVC Encode
HDMI 4K Support