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GPU Comparison
ATI Radeon HD 4870 Mac Edition vs AMD Radeon HD 8770 OEM
ATI Radeon HD 4870 Mac Edition vs AMD Radeon HD 8770 OEM
VS
ATI Radeon HD 4870 Mac Edition
AMD Radeon HD 8770 OEM
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 1024MB VRAM Radeon HD 8770 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4870 Mac Edition 's Advantages
Larger VRAM bandwidth (108.8GB/s vs 96.00GB/s)
AMD Radeon HD 8770 OEM 's Advantages
Released 4 years and 8 months late
More VRAM (1024GB vs 512GB)
96 additional rendering cores
Lower TDP (85W vs 150W)
Score
Benchmark
FP32 (float)
Radeon HD 4870 Mac Edition
1.2 TFLOPS
Radeon HD 8770 OEM
+56%
1.882 TFLOPS
Radeon HD 4870 Mac Edition
VS
Radeon HD 8770 OEM
Graphics Card
Jan 2009
Release Date
Sep 2013
Radeon R700
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
850 MHz
Memory Clock
1500 MHz
Memory
512MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
108.8GB/s
Bandwidth
96.00GB/s
Render Config
-
SM Count
-
10
Compute Units
14
800
Shading Units
896
40
TMUs
56
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
16.80 GPixel/s
30.00 GTexel/s
Texture Rate
58.80 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
1.882 TFLOPS
240.0 GFLOPS
FP64 (double)
117.6 GFLOPS
Graphics Processor
RV770
GPU Name
Bonaire
RV770 XT Mac (215-0669080)
GPU Variant
Bonaire XT (215-0839039)
TeraScale
Architecture
GCN 2.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.956 billion
Transistors
2.08 billion
256 mm²
Die Size
160 mm²
Board Design
150W
TDP
85W
450 W
Suggested PSU
250 W
1x DVI 1x mini-DisplayPort 1.0
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin
Graphics Features
10.1 (10_1)
DirectX
12 (12_0)
3.3
OpenGL
4.6
1.1
OpenCL
2.0
N/A
Vulkan
1.2
-
CUDA
-
4.1
Shader Model
6.3
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