Home GPU Comparison AMD Radeon R7 340 OEM vs AMD Radeon HD 7970

AMD Radeon R7 340 OEM vs AMD Radeon HD 7970

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 340 OEM and 3GB VRAM Radeon HD 7970 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 3 years and 5 months late
Boost Clock780MHz
Lower TDP (50W vs 250W)
AMD Radeon HD 7970 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (264.0GB/s vs 64.00GB/s)
1664 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R7 340 OEM
0.599 TFLOPS
Radeon HD 7970 +532%
3.789 TFLOPS
VS

Graphics Card

May 2015
Release Date
Dec 2011
Pirate Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

730 MHz
Base Clock
-
780 MHz
Boost Clock
-
1000 MHz
Memory Clock
1375 MHz

Memory

2GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
384bit
64.00GB/s
Bandwidth
264.0GB/s

Render Config

-
SM Count
-
6
Compute Units
32
384
Shading Units
2048
24
TMUs
128
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
29.60 GPixel/s
18.72 GTexel/s
Texture Rate
118.4 GTexel/s
-
FP16 (half)
-
599.0 GFLOPS
FP32 (float)
3.789 TFLOPS
37.44 GFLOPS
FP64 (double)
947.2 GFLOPS

Graphics Processor

Oland
GPU Name
Tahiti
-
GPU Variant
Tahiti XT (215-0821060)
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
250W
250 W
Suggested PSU
600 W
1x DVI 1x HDMI 1.4a 1x VGA
Outputs
1x DVI 1x HDMI 1.4a 2x mini-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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