ATI Mobility Radeon HD 4870 vs AMD Radeon 540 Mobile
We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4870 and 2GB VRAM Radeon 540 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Mobility Radeon HD 4870 's Advantages
Larger VRAM bandwidth (56.83GB/s vs 48.00GB/s)
288 additional rendering cores
AMD Radeon 540 Mobile 's Advantages
Released 10 years and 2 months late
Boost Clock1124MHz
More VRAM (2GB vs 512GB)
Score
Benchmark
FP32 (float)
Mobility Radeon HD 4870
0.88 TFLOPS
Radeon 540 Mobile
+30%
1.151 TFLOPS
Graphics Card
Jan 2009
Release Date
Mar 2019
M9x
Generation
Mobility Radeon
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1100 MHz
-
Boost Clock
1124 MHz
888 MHz
Memory Clock
1500 MHz
Memory
512MB
Memory Size
2GB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
64bit
56.83GB/s
Bandwidth
48.00GB/s
Render Config
10
Compute Units
8
-
-
-
800
Shading Units
512
40
TMUs
32
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
8.800 GPixel/s
Pixel Rate
17.98 GPixel/s
22.00 GTexel/s
Texture Rate
35.97 GTexel/s
-
FP16 (half)
1151 GFLOPS
880.0 GFLOPS
FP32 (float)
1151 GFLOPS
176.0 GFLOPS
FP64 (double)
71.94 GFLOPS
Board Design
Unknown
TDP
50W
-
-
-
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
M98
GPU Name
Lexa
M98 XT L2
(216-0732023)
GPU Variant
Lexa PRO
(215-0904018)
TeraScale
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
55 nm
Process Size
14 nm
0.956 billion
Transistors
2.2 billion
256 mm²
Die Size
103 mm²
Graphics Features
10.1 (10_1)
DirectX
12 (12_0)
3.3
OpenGL
4.6
1.1
OpenCL
2.1
N/A
Vulkan
1.2
-
-
-
4.1
Shader Model
6.4
