Home GPU Comparison AMD Radeon R7 340 OEM vs AMD Radeon R9 280

AMD Radeon R7 340 OEM vs AMD Radeon R9 280

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 340 OEM and 3GB VRAM Radeon R9 280 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 340 OEM 's Advantages
Released 1 years and 2 months late
Lower TDP (50W vs 200W)
AMD Radeon R9 280 's Advantages
Boost Clock has increased by 20% (933MHz vs 780MHz)
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 64.00GB/s)
1408 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R7 340 OEM
0.599 TFLOPS
Radeon R9 280 +458%
3.344 TFLOPS
VS

Graphics Card

May 2015
Release Date
Mar 2014
Pirate Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

730 MHz
Base Clock
827 MHz
780 MHz
Boost Clock
933 MHz
1000 MHz
Memory Clock
1250 MHz

Memory

2GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
384bit
64.00GB/s
Bandwidth
240.0GB/s

Render Config

-
SM Count
-
6
Compute Units
28
384
Shading Units
1792
24
TMUs
112
8
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
768 KB

Theoretical Performance

6.240 GPixel/s
Pixel Rate
29.86 GPixel/s
18.72 GTexel/s
Texture Rate
104.5 GTexel/s
-
FP16 (half)
-
599.0 GFLOPS
FP32 (float)
3.344 TFLOPS
37.44 GFLOPS
FP64 (double)
836.0 GFLOPS

Graphics Processor

Oland
GPU Name
Tahiti
-
GPU Variant
Tahiti PRO3 (215-0821330)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.95 billion
Transistors
4.313 billion
77 mm²
Die Size
352 mm²

Board Design

50W
TDP
200W
250 W
Suggested PSU
550 W
1x DVI 1x HDMI 1.4a 1x VGA
Outputs
1x DVI 2x HDMI 1.4a 1x DisplayPort 1.2
None
Power Connectors
1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
5.1
Shader Model
5.1

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