AMD Radeon RX 640 vs Intel Iris Plus Graphics 645

Comparative analysis of AMD Radeon RX 640 and Intel Iris Plus Graphics 645 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

  • 3.6x more core clock speed: 1082 MHz vs 300 MHz
  • Around 6% higher boost clock speed: 1218 MHz vs 1150 MHz
  • 10.7x more pipelines: 512 vs 48
  • Around 17% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 3278 vs 2792
  • Around 17% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 3278 vs 2792
  • Around 83% better performance in Geekbench - OpenCL: 11683 vs 6372
  • Around 22% better performance in PassMark - G3D Mark: 2142 vs 1750
Specifications (specs)
Core clock speed 1082 MHz vs 300 MHz
Boost clock speed 1218 MHz vs 1150 MHz
Pipelines 512 vs 48
Benchmarks
GFXBench 4.0 - Car Chase Offscreen (Frames) 3278 vs 2792
GFXBench 4.0 - Car Chase Offscreen (Fps) 3278 vs 2792
Geekbench - OpenCL 11683 vs 6372
PassMark - G3D Mark 2142 vs 1750

Reasons to consider the Intel Iris Plus Graphics 645

  • Videocard is newer: launch date 1 month(s) later
  • 3.3x lower typical power consumption: 15 Watt vs 50 Watt
  • Around 1% better performance in GFXBench 4.0 - Manhattan (Frames): 1780 vs 1769
  • Around 1% better performance in GFXBench 4.0 - Manhattan (Fps): 1780 vs 1769
  • Around 8% better performance in GFXBench 4.0 - T-Rex (Frames): 2992 vs 2775
  • Around 8% better performance in GFXBench 4.0 - T-Rex (Fps): 2992 vs 2775
  • Around 7% better performance in PassMark - G2D Mark: 376 vs 352
Specifications (specs)
Launch date 10 July 2019 vs 13 May 2019
Thermal Design Power (TDP) 15 Watt vs 50 Watt
Benchmarks
GFXBench 4.0 - Manhattan (Frames) 1780 vs 1769
GFXBench 4.0 - Manhattan (Fps) 1780 vs 1769
GFXBench 4.0 - T-Rex (Frames) 2992 vs 2775
GFXBench 4.0 - T-Rex (Fps) 2992 vs 2775
PassMark - G2D Mark 376 vs 352

Compare benchmarks

GPU 1: AMD Radeon RX 640
GPU 2: Intel Iris Plus Graphics 645

GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
1769
1780
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
1769
1780
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
2775
2992
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
2775
2992
GFXBench 4.0 - Car Chase Offscreen (Frames)
GPU 1
GPU 2
3278
2792
GFXBench 4.0 - Car Chase Offscreen (Fps)
GPU 1
GPU 2
3278
2792
Geekbench - OpenCL
GPU 1
GPU 2
11683
6372
PassMark - G2D Mark
GPU 1
GPU 2
352
376
PassMark - G3D Mark
GPU 1
GPU 2
2142
1750
Name AMD Radeon RX 640 Intel Iris Plus Graphics 645
GFXBench 4.0 - Manhattan (Frames) 1769 1780
GFXBench 4.0 - Manhattan (Fps) 1769 1780
GFXBench 4.0 - T-Rex (Frames) 2775 2992
GFXBench 4.0 - T-Rex (Fps) 2775 2992
GFXBench 4.0 - Car Chase Offscreen (Frames) 3278 2792
GFXBench 4.0 - Car Chase Offscreen (Fps) 3278 2792
Geekbench - OpenCL 11683 6372
PassMark - G2D Mark 352 376
PassMark - G3D Mark 2142 1750

Compare specifications (specs)

AMD Radeon RX 640 Intel Iris Plus Graphics 645

Essentials

Architecture GCN 4.0 Intel Gen. 9.5 (Coffee Lake)
Code name Arctic Islands Kaby Lake GT3e
Launch date 13 May 2019 10 July 2019
Place in performance rating 794 834
Type Laptop

Technical info

Boost clock speed 1218 MHz 1150 MHz
Compute units 8
Core clock speed 1082 MHz 300 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 48
Pixel fill rate 19.49 GPixel/s
Texture fill rate 38.98 GTexel/s
Thermal Design Power (TDP) 50 Watt 15 Watt
Transistor count 2200 million

Video outputs and ports

Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
DisplayPort support
HDMI
eDP 1.2 signal support Yes

Compatibility, dimensions and requirements

Interface 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
Shader Model 6.4
Vulkan

Memory

Maximum RAM amount 2 GB
Memory bandwidth 112.0 GB/s
Memory bus width 128 bit
Memory clock speed 1750 MHz (7000 MHz effective)
Memory type GDDR5 DDR3/DDR4
Shared memory Yes

Technologies

Unified Video Decoder (UVD)
Video Code Engine (VCE)
H265/HEVC Decode
Quick Sync