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GPU Comparison
ATI Radeon HD 4870 vs ATI Radeon HD 4850 X2
ATI Radeon HD 4870 vs ATI Radeon HD 4850 X2
VS
ATI Radeon HD 4870
ATI Radeon HD 4850 X2
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 and 512MB VRAM Radeon HD 4850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4870 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 63.68GB/s)
Lower TDP (150W vs 250W)
Score
Benchmark
FP32 (float)
Radeon HD 4870
+20%
1.2 TFLOPS
Radeon HD 4850 X2
1 TFLOPS
Radeon HD 4870
VS
Radeon HD 4850 X2
Graphics Card
Jun 2008
Release Date
Nov 2008
Radeon R700
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
995 MHz
Memory
512MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
256bit
115.2GB/s
Bandwidth
63.68GB/s
Render Config
-
SM Count
-
10
Compute Units
10
800
Shading Units
800
40
TMUs
40
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
10.00 GPixel/s
30.00 GTexel/s
Texture Rate
25.00 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
1000 GFLOPS
240.0 GFLOPS
FP64 (double)
200.0 GFLOPS
Graphics Processor
RV770
GPU Name
R700
RV770 XT (215-0669049)
GPU Variant
R700 PRO (215-0669065)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.956 billion
Transistors
0.956 billion
256 mm²
Die Size
256 mm²
Board Design
150W
TDP
250W
450 W
Suggested PSU
600 W
2x DVI 1x S-Video
Outputs
4x DVI 1x S-Video
2x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
-
4.1
Shader Model
4.1
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