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GPU Comparison
ATI Radeon HD 4870 X2 vs AMD Radeon HD 8950 OEM
ATI Radeon HD 4870 X2 vs AMD Radeon HD 8950 OEM
VS
ATI Radeon HD 4870 X2
AMD Radeon HD 8950 OEM
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 3GB VRAM Radeon HD 8950 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 8950 OEM 's Advantages
Released 4 years and 5 months late
Boost Clock925MHz
More VRAM (3GB vs 1GB)
Larger VRAM bandwidth (240.0GB/s vs 115.2GB/s)
992 additional rendering cores
Lower TDP (200W vs 286W)
Score
Benchmark
FP32 (float)
Radeon HD 4870 X2
1.2 TFLOPS
Radeon HD 8950 OEM
+176%
3.315 TFLOPS
Radeon HD 4870 X2
VS
Radeon HD 8950 OEM
Graphics Card
Aug 2008
Release Date
Jan 2013
Radeon R700
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
850 MHz
-
Boost Clock
925 MHz
900 MHz
Memory Clock
1250 MHz
Memory
1024MB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
115.2GB/s
Bandwidth
240.0GB/s
Render Config
-
SM Count
-
10
Compute Units
28
800
Shading Units
1792
40
TMUs
112
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
768 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
29.60 GPixel/s
30.00 GTexel/s
Texture Rate
103.6 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
3.315 TFLOPS
240.0 GFLOPS
FP64 (double)
828.8 GFLOPS
Graphics Processor
R700
GPU Name
Tahiti
R700 XT (215-0669045)
GPU Variant
Tahiti PRO (215-0821056)
TeraScale
Architecture
GCN 1.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.956 billion
Transistors
4.313 billion
256 mm²
Die Size
352 mm²
Board Design
286W
TDP
200W
600 W
Suggested PSU
550 W
2x DVI 1x S-Video
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
2x 6-pin
Graphics Features
10.1 (10_1)
DirectX
12 (11_1)
3.3
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
-
CUDA
-
4.1
Shader Model
5.1
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