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GPU Comparison
AMD Radeon R9 285 vs AMD Radeon HD 7850
AMD Radeon R9 285 vs AMD Radeon HD 7850
VS
AMD Radeon R9 285
AMD Radeon HD 7850
We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 285 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 R9 285 's Advantages
Released 2 years and 6 months late
Larger VRAM bandwidth (176.0GB/s vs 153.6GB/s)
768 additional rendering cores
AMD Radeon HD 7850 's Advantages
Lower TDP (130W vs 190W)
Score
Benchmark
FP32 (float)
Radeon R9 285
+86%
3.29 TFLOPS
Radeon HD 7850
1.761 TFLOPS
Radeon R9 285
VS
Radeon HD 7850
Graphics Card
Sep 2014
Release Date
Mar 2012
Volcanic Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1375 MHz
Memory Clock
1200 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
176.0GB/s
Bandwidth
153.6GB/s
Render Config
-
SM Count
-
28
Compute Units
16
1792
Shading Units
1024
112
TMUs
64
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
512 KB
Theoretical Performance
29.38 GPixel/s
Pixel Rate
27.52 GPixel/s
102.8 GTexel/s
Texture Rate
55.04 GTexel/s
3.290 TFLOPS
FP16 (half)
-
3.290 TFLOPS
FP32 (float)
1.761 TFLOPS
205.6 GFLOPS
FP64 (double)
110.1 GFLOPS
Graphics Processor
Tonga
GPU Name
Pitcairn
Tonga PRO (215-0851128)
GPU Variant
Pitcairn PRO (215-0828062)
GCN 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
2.8 billion
366 mm²
Die Size
212 mm²
Board Design
190W
TDP
130W
450 W
Suggested PSU
300 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin
Graphics Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.2.170
Vulkan
1.2
-
CUDA
-
6.5
Shader Model
5.1
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