AMD Radeon 840M 2900MHz vs AMD Radeon R5 4CU 757MHz GCN 2 Full Specs
256 Shaders 2.9GHz | 256 Shaders 757MHz |
Shared Memory128GB/s · | Shared Memory29.9GB/sDDR3 |
·· 1.49 TFLOPS | ·· 387.6 GFLOPS |
Form Factor iGPU | Form Factor iGPU |
TDP Shared | TDP Shared |
Clock Speed ··· | Clock Speed ·· |
Peak OPS 2.97 TFLOPSFP16 | Peak OPS 387.6 GFLOPSFP16 |
BF16 2.97 TFLOPS | - |
FP32 1.49 TFLOPS | FP32 387.6 GFLOPS |
FP64 92.8 GFLOPS | FP64 24.22 GFLOPS |
Pixel Rate 92.8 GPixel/s | Pixel Rate 6.1 GPixel/s |
Texture Rate 46.4 GTexel/s | Texture Rate 12.1 GTexel/s |
Shaders 256 Shaders | Shaders 256 Shaders |
TMUs 16 TMUs | TMUs 16 TMUs |
ROPs 32 ROPs | ROPs 8 ROPs |
RT Cores 4 RT-Cores | RT Cores - |
CUs 4 CUs | CUs 4 CUs |
Base Clock 1.5GHz | Base Clock - |
Boost Clock 2.9GHz | Boost Clock 757MHz |
L2 Cache - | L2 Cache 128KB shared |
Shared Memory · | Shared MemoryDDR3 |
Memory Bus 128-bit | Memory Bus 128-bit |
Memory Speed 8GT/s | Memory Speed 1.9GT/s |
Memory Bandwidth 128GB/s | Memory Bandwidth 29.9GB/s |
Multi-Monitor 4 | Multi-Monitor 3 |
HDCP HDCP 2.3 | HDCP - |
Encoder Model VCN 4.0 | Encoder Model VCE 2.0 |
Decoder Model VCN 4.0 | Decoder Model UVD 4.2 |
Form Factor iGPU | Form Factor iGPU |
Foundry TSMC | Foundry GlobalFoundries |
Fabrication Node N4P | Fabrication Node 28nm |
Die Size 233mm² | Die Size 245mm² |
Transistor Count 28 Billion | Transistor Count 2.4 Billion |
Transistor Density 120 MTr/mm² | Transistor Density 10 MTr/mm² |
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No images available
CPUs | CPUs |
Laptops | Laptops - |



