ATI Mobility Radeon HD 5870 vs AMD Radeon HD 8770M
We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 5870 and 2GB VRAM Radeon HD 8770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Mobility Radeon HD 5870 's Advantages
416 additional rendering cores
AMD Radeon HD 8770M 's Advantages
Released 3 years and 3 months late
Boost Clock825MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (72.00GB/s vs 64.00GB/s)
Score
Benchmark
FP32 (float)
Mobility Radeon HD 5870
+76%
1.12 TFLOPS
Radeon HD 8770M
0.633 TFLOPS
Graphics Card
Jan 2010
Release Date
Apr 2013
Manhattan
Generation
Solar System
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
775 MHz
-
Boost Clock
825 MHz
1000 MHz
Memory Clock
1125 MHz
Memory
1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
64.00GB/s
Bandwidth
72.00GB/s
Render Config
10
Compute Units
6
-
-
-
800
Shading Units
384
40
TMUs
24
16
ROPs
8
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
11.20 GPixel/s
Pixel Rate
6.600 GPixel/s
28.00 GTexel/s
Texture Rate
19.80 GTexel/s
-
-
-
1120 GFLOPS
FP32 (float)
633.6 GFLOPS
-
FP64 (double)
39.60 GFLOPS
Board Design
50W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-
Graphics Processor
Broadway
GPU Name
Mars
Broadway XT
(216-0769008)
GPU Variant
Mars S3 XT
(216-0842018)
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
1.04 billion
Transistors
0.95 billion
166 mm²
Die Size
77 mm²
Graphics Features
11.2 (11_0)
DirectX
12 (11_1)
4.4
OpenGL
4.6
1.2
OpenCL
2.1 (1.2)
N/A
Vulkan
1.2.170
-
-
-
5.0
Shader Model
6.5 (5.1)
