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GPU Comparison
AMD Radeon HD 6870M vs AMD Radeon HD 6490M
AMD Radeon HD 6870M vs AMD Radeon HD 6490M
VS
AMD Radeon HD 6870M
AMD Radeon HD 6490M
We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 512MB VRAM Radeon HD 6490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870M 's Advantages
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (64.00GB/s vs 25.60GB/s)
640 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 6870M
+321%
1.08 TFLOPS
Radeon HD 6490M
0.256 TFLOPS
Radeon HD 6870M
VS
Radeon HD 6490M
Graphics Card
Jan 2011
Release Date
Jan 2011
Vancouver
Generation
Vancouver
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1000 MHz
Memory Clock
800 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
64bit
64.00GB/s
Bandwidth
25.60GB/s
Render Config
-
SM Count
-
10
Compute Units
2
800
Shading Units
160
40
TMUs
8
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
128 KB
Theoretical Performance
10.80 GPixel/s
Pixel Rate
3.200 GPixel/s
27.00 GTexel/s
Texture Rate
6.400 GTexel/s
-
FP16 (half)
-
1080 GFLOPS
FP32 (float)
256.0 GFLOPS
-
FP64 (double)
-
Graphics Processor
Granville
GPU Name
Seymour
Granville XT (216-0769024)
GPU Variant
Seymour XTX S3 (216-0809024)
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.04 billion
Transistors
0.37 billion
166 mm²
Die Size
67 mm²
Board Design
50W
TDP
Unknown
-
Suggested PSU
-
No outputs
Outputs
Portable Device Dependent
-
Power Connectors
-
Graphics Features
11.2 (11_0)
DirectX
11.2 (11_0)
4.4
OpenGL
4.4
1.2
OpenCL
1.2
N/A
Vulkan
N/A
-
CUDA
-
5.0
Shader Model
5.0
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