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GPU Comparison
AMD Radeon R9 285X vs AMD Radeon R5 340X OEM
AMD Radeon R9 285X vs AMD Radeon R5 340X OEM
VS
AMD Radeon R9 285X
AMD Radeon R5 340X OEM
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 2GB VRAM Radeon R5 340X OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 285X 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (264.0GB/s vs 16.00GB/s)
1664 additional rendering cores
AMD Radeon R5 340X OEM 's Advantages
Lower TDP (65W vs 200W)
Score
Benchmark
FP32 (float)
Radeon R9 285X
+493%
4.104 TFLOPS
Radeon R5 340X OEM
0.691 TFLOPS
Radeon R9 285X
VS
Radeon R5 340X OEM
Graphics Card
Unknown
Release Date
May 2015
Volcanic Islands
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1375 MHz
Memory Clock
1000 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
384bit
Memory Bus
64bit
264.0GB/s
Bandwidth
16.00GB/s
Render Config
-
SM Count
-
32
Compute Units
6
2048
Shading Units
384
128
TMUs
24
32
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
128 KB
Theoretical Performance
32.06 GPixel/s
Pixel Rate
7.200 GPixel/s
128.3 GTexel/s
Texture Rate
21.60 GTexel/s
-
FP16 (half)
-
4.104 TFLOPS
FP32 (float)
691.2 GFLOPS
-
FP64 (double)
43.20 GFLOPS
Graphics Processor
Tonga
GPU Name
Oland
Tonga XT (215-0851313)
GPU Variant
Oland XT (215-0837000)
GCN 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
0.95 billion
366 mm²
Die Size
77 mm²
Board Design
200W
TDP
65W
550 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
6.3
Shader Model
5.1
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