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ATI Mobility Radeon HD 4870
ATI Mobility Radeon HD 4850 Mac Edition
ATI Mobility Radeon HD 4860
ATI Mobility Radeon HD 4850 X2
ATI Mobility Radeon HD 4330
ATI Mobility Radeon HD 4830
ATI Mobility Radeon HD 4570
ATI Mobility Radeon HD 4870
This is a GPU manufactured with TSMC 55nm process, based on ATI TeraScale architecture and released on Jan 2009. It features 0.956 billion transistors, 10 Rendering cores and 512MB GDDR3 memory, with 256KB L2 cache, theoretical performance of 880.0GFLOPS.
Graphics Card
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Release Date
Jan 2009
Generation
M9x
Type
Mobile
Bus Interface
PCIe 2.0 x16
Clock Speeds
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Memory Clock
888 MHz
Memory
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Memory Size
512MB
Memory Type
GDDR3
Memory Bus
256bit
Bandwidth
56.83GB/s
Render Config
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Compute Units
10
Shading Units
800
TMUs
40
ROPs
16
L1 Cache
16 KB (per CU)
L2 Cache
256 KB
Theoretical Performance
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Pixel Rate
8.800 GPixel/s
Texture Rate
22.00 GTexel/s
FP32 (float)
880.0 GFLOPS
FP64 (double)
176.0 GFLOPS
Graphics Processor
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GPU Name
M98
GPU Variant
M98 XT L2
(216-0732023)
(216-0732023)
Architecture
TeraScale
Foundry
TSMC
Process Size
55 nm
Transistors
0.956 billion
Die Size
256 mm²
Board Design
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TDP
Unknown
Outputs
Portable Device Dependent
Power Connectors
None
Graphics Features
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DirectX
10.1 (10_1)
OpenGL
3.3
OpenCL
1.1
Vulkan
N/A
Shader Model
4.1
Rankings
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FP32 (float)
