AMD Radeon R7 340 OEM vs ATI Radeon HD 4850

Table of Contents

Graphics Processor

GPU model Oland RV770
Architecture GCN 1.0 TeraScale
Foundry TSMC TSMC
Manufacturing process 28 nm 55 nm
Number of transistors 950 million 956 million
Die size 77 mm² 256 mm²
GPU variant RV770 PRO (215-0669065)

Graphics Card

Release date May 5th, 2015 Jun 25th, 2008
Generation Pirate Islands Radeon R700
Production End-of-life End-of-life
Interface PCIe 3.0 x8 PCIe 2.0 x16
Predecessor Volcanic Islands Radeon R600
Successor Arctic Islands Evergreen
Launch price 199 USD
Reviews 127 in our database

Clocks

Base clock 730 MHz
Boost clock 780 MHz
Memory clock 1000 MHz 4 Gbps effective 993 MHz 1986 Mbps effective
GPU clock 625 MHz

Memory Configuration

Memory size 2 GB 512 MB
Memory type GDDR5 GDDR3
Memory bus width 128 bit 256 bit
Bandwidth 64.00 GB/s 63.55 GB/s

Render Configuration

Shading units 384 800
TMUs 24 40
ROPs 8 16
Compute units 6 10
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 256 KB 256 KB

Performance

Pixel rate 6.240 GPixel/s 10.00 GPixel/s
Texture rate 18.72 GTexel/s 25.00 GTexel/s
FP32 (float) performance 599.0 GFLOPS 1,000 GFLOPS
FP64 (double) performance 37.44 GFLOPS (1:16) 200.0 GFLOPS (1:5)

Dimensions & Outputs

Slot width Single-slot Single-slot
TDP 50 W 110 W
Suggested PSU 250 W 300 W
Outputs 1x DVI1x HDMI1x VGA 2x DVI1x S-Video
Power connectors None 1x 6-pin
Length 246 mm 9.7 inches
Board number B501-31

API Support & Features

DirectX 12 (11_1) 10.1 (10_1)
OpenGL 4.6 3.3
OpenCL 1.2 1.1
Vulkan 1.2
Shader model 5.1 4.1

Other Features

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