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AMD Radeon R7 M340

Meso
Graphics Processor
320
Cores
20
TMUs
8
ROPs
2 GB
Memory Size
DDR3
Memory Type
64 bit
Bus Width
AMD Meso Photo
The Radeon R7 M340 is a graphics card by AMD, launched in May 2015. Built on the 28 nm process, and based on the Meso graphics processor, in its Meso PRO variant, the card supports DirectX 12.0. The Meso graphics processor is an average sized chip with a die area of 125 mm² and 3,100 million transistors. Unlike the fully unlocked Radeon R7 M460, which uses the same GPU but has all 384 shaders enabled, AMD has disabled some shading units on the Radeon R7 M340 to reach the product's target shader count. It features 320 shading units, 20 texture mapping units and 8 ROPs. AMD has placed 2,048 MB DDR3 memory on the card, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 943 MHz, which can be boosted up to 1021 MHz, memory is running at 1000 MHz.
Its power draw is not exactly known. This device has no display connectivity, as it is not designed to have monitors connected to it. Radeon R7 M340 is connected to the rest of the system using a PCI-Express 3.0 x8 interface.

Graphics Processor

GPU Name
Meso
GPU Variant
Meso PRO
(216-0864032)
Architecture
GCN 3.0
Foundry
TSMC
Process Size
28 nm
Transistors
3,100 million
Die Size
125 mm²

Graphics Card

Release Date
May 5th, 2015
Generation
Crystal System
(R7 M300)
Production
Active
Bus Interface
PCIe 3.0 x8

Relative Performance

18%
23%
29%
37%
43%
46%
57%
74%
75%
81%
86%
88%
100%
Radeon R7 M340
101%
107%
115%
119%
123%
127%
136%
143%
147%
151%
156%
178%
180%
183%
185%
186%
187%
189%
200%
210%
214%
222%
224%
226%
228%
229%
229%
233%
245%
249%
268%
272%
272%
284%
285%
295%
315%
325%
326%
332%
334%
346%
350%
352%
358%
375%
382%
388%
389%
390%
391%
422%
426%
436%
442%
444%
447%
448%
456%
457%
470%
506%
519%
532%
535%
541%
546%
559%
573%
587%
601%
609%
610%
675%
743%
753%
804%
808%
819%
830%
837%
841%
853%
857%
861%
868%
915%
934%
946%
946%
1040%
1058%
1076%
1157%
1271%
1315%
1417%
1417%
1495%
1668%
1749%
1794%
1955%
2224%
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
943 MHz
Boost Clock
1021 MHz
Memory Clock
1000 MHz
2000 MHz effective

Memory

Memory Size
2 GB
Memory Type
DDR3
Memory Bus
64 bit
Bandwidth
16.00 GB/s

Render Config

Shading Units
320
TMUs
20
ROPs
8
Compute Units
5

Theoretical Performance

Pixel Rate
8.168 GPixel/s
Texture Rate
20.42 GTexel/s
FP16 (half) performance
653.4 GFLOPS (1:1)
FP32 (float) performance
653.4 GFLOPS
FP64 (double) performance
40.84 GFLOPS (1:16)

Board Design

TDP
unknown
Outputs
No outputs

Graphics Features

DirectX
12.0 (12_0)
OpenGL
4.5
OpenCL
2.0
Vulkan
1.1.82
Shader Model
6.0

Meso GPU Notes

Chip Variant: Iceland / Topaz
Graphics/Compute: GFX8 (gfx802)
Display Core Engine: No Support
Unified Video Decoder: No Support
Video Compression Engine: No Support
ROCm Support