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GPU Comparison
AMD Radeon 550X 640SP vs AMD Radeon HD 7850
AMD Radeon 550X 640SP vs AMD Radeon HD 7850
VS
AMD Radeon 550X 640SP
AMD Radeon HD 7850
We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 2GB VRAM Radeon HD 7850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon 550X 640SP 's Advantages
Released 6 years and 1 months late
Boost Clock1071MHz
More VRAM (4GB vs 2GB)
Lower TDP (50W vs 130W)
AMD Radeon HD 7850 's Advantages
Larger VRAM bandwidth (153.6GB/s vs 48.00GB/s)
384 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon 550X 640SP
1.371 TFLOPS
Radeon HD 7850
+28%
1.761 TFLOPS
Radeon 550X 640SP
VS
Radeon HD 7850
Graphics Card
Apr 2018
Release Date
Mar 2012
Polaris
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
1019 MHz
Base Clock
-
1071 MHz
Boost Clock
-
1500 MHz
Memory Clock
1200 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
256bit
48.00GB/s
Bandwidth
153.6GB/s
Render Config
-
SM Count
-
10
Compute Units
16
640
Shading Units
1024
40
TMUs
64
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
Theoretical Performance
17.14 GPixel/s
Pixel Rate
27.52 GPixel/s
42.84 GTexel/s
Texture Rate
55.04 GTexel/s
1371 GFLOPS
FP16 (half)
-
1371 GFLOPS
FP32 (float)
1.761 TFLOPS
85.68 GFLOPS
FP64 (double)
110.1 GFLOPS
Graphics Processor
Lexa
GPU Name
Pitcairn
Lexa PRO (215-0904018)
GPU Variant
Pitcairn PRO (215-0828062)
GCN 4.0
Architecture
GCN 1.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
2.2 billion
Transistors
2.8 billion
103 mm²
Die Size
212 mm²
Board Design
50W
TDP
130W
250 W
Suggested PSU
300 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
1x 6-pin
Graphics Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
6.4
Shader Model
5.1
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8
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9
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