AMD Radeon RX 640 vs AMD Radeon HD 7450M

Comparative analysis of AMD Radeon RX 640 and AMD Radeon HD 7450M 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 7 year(s) 4 month(s) later
  • Around 55% higher core clock speed: 1082 MHz vs 700 MHz
  • 6960.7x more texture fill rate: 38.98 GTexel/s vs 5.6 GTexel / s
  • 3.2x more pipelines: 512 vs 160
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 14 nm vs 40 nm
  • 2x more maximum memory size: 2 GB vs 1 GB
  • 23.8x better performance in Geekbench - OpenCL: 11323 vs 476
  • 6x better performance in PassMark - G3D Mark: 1983 vs 330
Specifications (specs)
Launch date 13 May 2019 vs 7 January 2012
Core clock speed 1082 MHz vs 700 MHz
Texture fill rate 38.98 GTexel/s vs 5.6 GTexel / s
Pipelines 512 vs 160
Manufacturing process technology 14 nm vs 40 nm
Maximum memory size 2 GB vs 1 GB
Benchmarks
Geekbench - OpenCL 11323 vs 476
PassMark - G3D Mark 1983 vs 330

Reasons to consider the AMD Radeon HD 7450M

  • 7.1x lower typical power consumption: 7 Watt vs 50 Watt
  • Around 3% higher memory clock speed: 1800 MHz vs 1750 MHz (7000 MHz effective)
  • Around 4% better performance in GFXBench 4.0 - Manhattan (Frames): 1832 vs 1769
  • Around 4% better performance in GFXBench 4.0 - Manhattan (Fps): 1832 vs 1769
  • Around 26% better performance in GFXBench 4.0 - T-Rex (Frames): 3493 vs 2775
  • Around 26% better performance in GFXBench 4.0 - T-Rex (Fps): 3493 vs 2775
  • Around 30% better performance in PassMark - G2D Mark: 441 vs 339
Specifications (specs)
Thermal Design Power (TDP) 7 Watt vs 50 Watt
Memory clock speed 1800 MHz vs 1750 MHz (7000 MHz effective)
Benchmarks
GFXBench 4.0 - Manhattan (Frames) 1832 vs 1769
GFXBench 4.0 - Manhattan (Fps) 1832 vs 1769
GFXBench 4.0 - T-Rex (Frames) 3493 vs 2775
GFXBench 4.0 - T-Rex (Fps) 3493 vs 2775
PassMark - G2D Mark 441 vs 339

Compare benchmarks

GPU 1: AMD Radeon RX 640
GPU 2: AMD Radeon HD 7450M

GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
1769
1832
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
1769
1832
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
2775
3493
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
2775
3493
Geekbench - OpenCL
GPU 1
GPU 2
11323
476
PassMark - G2D Mark
GPU 1
GPU 2
339
441
PassMark - G3D Mark
GPU 1
GPU 2
1983
330
Name AMD Radeon RX 640 AMD Radeon HD 7450M
GFXBench 4.0 - Manhattan (Frames) 1769 1832
GFXBench 4.0 - Manhattan (Fps) 1769 1832
GFXBench 4.0 - T-Rex (Frames) 2775 3493
GFXBench 4.0 - T-Rex (Fps) 2775 3493
GFXBench 4.0 - Car Chase Offscreen (Frames) 3278
GFXBench 4.0 - Car Chase Offscreen (Fps) 3278
Geekbench - OpenCL 11323 476
PassMark - G2D Mark 339 441
PassMark - G3D Mark 1983 330

Compare specifications (specs)

AMD Radeon RX 640 AMD Radeon HD 7450M

Essentials

Architecture GCN 4.0 TeraScale 2
Code name Arctic Islands Seymour
Launch date 13 May 2019 7 January 2012
Place in performance rating 811 808
Type Laptop

Technical info

Boost clock speed 1218 MHz
Compute units 8
Core clock speed 1082 MHz 700 MHz
Manufacturing process technology 14 nm 40 nm
Peak Double Precision (FP64) Performance 77.95 GFLOPS
Peak Half Precision (FP16) Performance 1247 GFLOPS
Peak Single Precision (FP32) Performance 1247 GFLOPS
Pipelines 512 160
Pixel fill rate 19.49 GPixel/s
Texture fill rate 38.98 GTexel/s 5.6 GTexel / s
Thermal Design Power (TDP) 50 Watt 7 Watt
Transistor count 2200 million 370 million
Floating-point performance 224.0 gflops

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 2.0 x16
Length 5.7 inches (145 mm)
Recommended system power (PSU) 350 Watt
Supplementary power connectors None
Width Dual-slot

API support

DirectX 12 11.2 (11_0)
OpenCL 2.0
OpenGL 4.6 4.4
Shader Model 6.4
Vulkan

Memory

Maximum RAM amount 2 GB 1 GB
Memory bandwidth 112.0 GB/s 14.4 GB / s
Memory bus width 128 bit 64 Bit
Memory clock speed 1750 MHz (7000 MHz effective) 1800 MHz
Memory type GDDR5 DDR3, GDDR5
Shared memory 0

Technologies

Unified Video Decoder (UVD)
Video Code Engine (VCE)